Add "blank" lines to cash.1

No way I'll be able to maintain it without.

1 files changed, 299 insertions, 1 deletions

diff --git a/bin/cash/cash.1 b/bin/cash/cash.1
index 94031bb9..b0cbdee0 100644
--- a/bin/cash/cash.1
+++ b/bin/cash/cash.1
@@ -31,13 +31,15 @@
 .\"
 .\"	from: @(#)sh.1	8.6 (Berkeley) 5/4/95
 .\" $FreeBSD: releng/12.0/bin/sh/sh.1 336483 2018-07-19 13:09:29Z 0mp $
-.\"
+.
 .Dd January 10, 2019
 .Dt CASH 1
 .Os
+.
 .Sh NAME
 .Nm cash
 .Nd the Causal Agency shell
+.
 .Sh SYNOPSIS
 .Nm
 .Op Fl /+abCEefhIimnPpTuVvx
@@ -46,6 +48,7 @@
 .Ar script
 .Op Ar arg ...
 .Oc
+.
 .Nm
 .Op Fl /+abCEefhIimnPpTuVvx
 .Op Fl /+o Ar longname
@@ -54,11 +57,13 @@
 .Ar name
 .Op Ar arg ...
 .Oc
+.
 .Nm
 .Op Fl /+abCEefhIimnPpTuVvx
 .Op Fl /+o Ar longname
 .Fl s
 .Op Ar arg ...
+.
 .Sh DESCRIPTION
 The
 .Nm
@@ -73,6 +78,7 @@ designated by POSIX,
 plus a few Berkeley extensions.
 This man page is not intended to be a tutorial nor a complete
 specification of the shell.
+.
 .Ss Overview
 The shell is a command that reads lines from
 either a file or the terminal, interprets them, and
@@ -93,6 +99,7 @@ use (shell scripts).
 That is, commands can be typed directly
 to the running shell or can be put into a file,
 which can be executed directly by the shell.
+.
 .Ss Invocation
 .\"
 .\" XXX This next sentence is incredibly confusing.
@@ -139,8 +146,10 @@ in the home directory,
 substituting for
 .Pa .cashrc
 the filename desired:
+.
 .Pp
 .Dl "ENV=$HOME/.cashrc; export ENV"
+.
 .Pp
 The first non-option argument specified on the command line
 will be treated as the
@@ -151,6 +160,7 @@ of the shell
 etc.).
 Otherwise, the shell reads commands
 from its standard input.
+.
 .Pp
 Unlike older versions of
 .Xr sh 1
@@ -162,6 +172,7 @@ closes a well-known, and sometimes easily exploitable security
 hole related to poorly thought out
 .Ev ENV
 scripts.
+.
 .Ss Argument List Processing
 All of the single letter options to
 .Nm
@@ -202,16 +213,20 @@ and
 .Fl c
 options do not have long names.
 They take arguments and are described after the single letter options.
+.
 .Bl -tag -width indent
 .It Fl a Li allexport
 Flag variables for export when assignments are made to them.
+.
 .It Fl b Li notify
 Enable asynchronous notification of background job
 completion.
 (UNIMPLEMENTED)
+.
 .It Fl C Li noclobber
 Do not overwrite existing files with
 .Ql > .
+.
 .It Fl E Li emacs
 Enable the built-in
 .Xr emacs 1
@@ -219,6 +234,7 @@ command line editor (disables the
 .Fl V
 option if it has been set;
 set automatically when interactive on terminals).
+.
 .It Fl e Li errexit
 Exit immediately if any untested command fails in non-interactive mode.
 The exit status of a command is considered to be
@@ -238,22 +254,28 @@ keyword.
 If a shell function is executed and its exit status is explicitly
 tested, all commands of the function are considered to be tested as
 well.
+.
 .Pp
 It is recommended to check for failures explicitly
 instead of relying on
 .Fl e
 because it tends to behave in unexpected ways,
 particularly in larger scripts.
+.
 .It Fl f Li noglob
 Disable pathname expansion.
+.
 .It Fl h Li trackall
 A do-nothing option for POSIX compliance.
+.
 .It Fl I Li ignoreeof
 Ignore
 .Dv EOF Ap s
 from input when in interactive mode.
+.
 .It Fl i Li interactive
 Force the shell to behave interactively.
+.
 .It Fl m Li monitor
 Turn on job control (set automatically when interactive).
 A new process group is created for each pipeline (called a job).
@@ -262,11 +284,13 @@ in the background.
 In a non-interactive shell,
 this option can be set even if no terminal is available
 and is useful to place processes in separate process groups.
+.
 .It Fl n Li noexec
 If not interactive, read commands but do not
 execute them.
 This is useful for checking the
 syntax of shell scripts.
+.
 .It Fl P Li physical
 Change the default for the
 .Ic cd
@@ -278,6 +302,7 @@ commands from
 to
 .Fl P
 (physical directory layout).
+.
 .It Fl p Li privileged
 Turn on privileged mode.
 This mode is enabled on startup
@@ -294,6 +319,7 @@ after
 is sourced, and the contents of the
 .Ev ENV
 variable are ignored.
+.
 .It Fl s Li stdin
 Read commands from standard input (set automatically
 if no file arguments are present).
@@ -302,6 +328,7 @@ no effect when set after the shell has already started
 running (i.e., when set with the
 .Ic set
 command).
+.
 .It Fl T Li trapsasync
 When waiting for a child, execute traps immediately.
 If this option is not set,
@@ -316,6 +343,7 @@ like this:
 .Bd -literal -offset indent
 cash -T -c "trap 'exit 1' 2 ; some-blocking-program"
 .Ed
+.
 .It Fl u Li nounset
 Write a message to standard error when attempting
 to expand a variable, a positional parameter or
@@ -323,16 +351,19 @@ the special parameter
 .Va \&!
 that is not set, and if the
 shell is not interactive, exit immediately.
+.
 .It Fl V Li vi
 Enable the built-in
 .Xr vi 1
 command line editor (disables
 .Fl E
 if it has been set).
+.
 .It Fl v Li verbose
 The shell writes its input to standard error
 as it is read.
 Useful for debugging.
+.
 .It Fl x Li xtrace
 Write each command
 (preceded by the value of the
@@ -340,10 +371,12 @@ Write each command
 variable subjected to parameter expansion and arithmetic expansion)
 to standard error before it is executed.
 Useful for debugging.
+.
 .It Li nolog
 Another do-nothing option for POSIX compliance.
 It only has a long name.
 .El
+.
 .Pp
 The
 .Fl c
@@ -352,6 +385,7 @@ option causes the commands to be read from the
 operand instead of from the standard input.
 Keep in mind that this option only accepts a single string as its
 argument, hence multi-word strings must be quoted.
+.
 .Pp
 The
 .Fl /+o
@@ -366,6 +400,7 @@ command line editor:
 set -E
 set -o emacs
 .Ed
+.
 .Pp
 If used without an argument, the
 .Fl o
@@ -374,6 +409,7 @@ If
 .Cm +o
 is used without an argument, the current option settings are output
 in a format suitable for re-input into the shell.
+.
 .Ss Lexical Structure
 The shell reads input in terms of lines from a file and breaks
 it up into words at whitespace (blanks and tabs), and at
@@ -384,18 +420,21 @@ which are special to the shell.
 There are two types of operators: control operators and
 redirection operators (their meaning is discussed later).
 The following is a list of valid operators:
+.
 .Bl -tag -width indent
 .It Control operators:
 .Bl -column "XXX" "XXX" "XXX" "XXX" "XXX" -offset center -compact
 .It Li & Ta Li && Ta Li \&( Ta Li \&) Ta Li \en
 .It Li ;; Ta Li ;& Ta Li \&; Ta Li \&| Ta Li ||
 .El
+.
 .It Redirection operators:
 .Bl -column "XXX" "XXX" "XXX" "XXX" "XXX" -offset center -compact
 .It Li < Ta Li > Ta Li << Ta Li >> Ta Li <>
 .It Li <& Ta Li >& Ta Li <<- Ta Li >| Ta \&
 .El
 .El
+.
 .Pp
 The character
 .Ql #
@@ -403,23 +442,28 @@ introduces a comment if used at the beginning of a word.
 The word starting with
 .Ql #
 and the rest of the line are ignored.
+.
 .Pp
 ASCII
 .Dv NUL
 characters (character code 0) are not allowed in shell input.
+.
 .Ss Quoting
 Quoting is used to remove the special meaning of certain characters
 or words to the shell, such as operators, whitespace, keywords,
 or alias names.
+.
 .Pp
 There are four types of quoting: matched single quotes,
 dollar-single quotes,
 matched double quotes, and backslash.
+.
 .Bl -tag -width indent
 .It Single Quotes
 Enclosing characters in single quotes preserves the literal
 meaning of all the characters (except single quotes, making
 it impossible to put single-quotes in a single-quoted string).
+.
 .It Dollar-Single Quotes
 Enclosing characters between
 .Li $'
@@ -428,6 +472,7 @@ and
 preserves the literal meaning of all characters
 except backslashes and single quotes.
 A backslash introduces a C-style escape sequence:
+.
 .Bl -tag -width xUnnnnnnnn
 .It \ea
 Alert (ring the terminal bell)
@@ -476,16 +521,20 @@ The Unicode code point
 .Ar nnnnnnnn
 (eight hexadecimal digits)
 .El
+.
 .Pp
 The sequences for Unicode code points are currently only useful with
 UTF-8 locales.
 They reject code point 0 and UTF-16 surrogates.
+.
 .Pp
 If an escape sequence would produce a byte with value 0,
 that byte and the rest of the string until the matching single-quote
 are ignored.
+.
 .Pp
 Any other string starting with a backslash is an error.
+.
 .It Double Quotes
 Enclosing characters within double quotes preserves the literal
 meaning of all characters except dollar sign
@@ -497,16 +546,19 @@ and backslash
 The backslash inside double quotes is historically weird.
 It remains literal unless it precedes the following characters,
 which it serves to quote:
+.
 .Pp
 .Bl -column "XXX" "XXX" "XXX" "XXX" "XXX" -offset center -compact
 .It Li $ Ta Li ` Ta Li \&" Ta Li \e Ta Li \en
 .El
+.
 .It Backslash
 A backslash preserves the literal meaning of the following
 character, with the exception of the newline character
 .Pq Ql \en .
 A backslash preceding a newline is treated as a line continuation.
 .El
+.
 .Ss Keywords
 Keywords or reserved words are words that have special meaning to the
 shell and are recognized at the beginning of a line and
@@ -517,6 +569,7 @@ The following are keywords:
 .It Ic done Ta Ic elif Ta Ic else Ta Ic esac Ta Ic fi
 .It Ic for Ta Ic if Ta Ic then Ta Ic until Ta Ic while
 .El
+.
 .Ss Aliases
 An alias is a name and corresponding value set using the
 .Ic alias
@@ -536,6 +589,7 @@ then the input
 would become
 .Pp
 .Dl "ls -F foobar"
+.
 .Pp
 Aliases are also recognized after an alias
 whose value ends with a space or tab.
@@ -550,6 +604,7 @@ then the input
 would become
 .Pp
 .Dl "nohup ls -F foobar"
+.
 .Pp
 Aliases provide a convenient way for naive users to
 create shorthands for commands without having to learn how
@@ -558,6 +613,7 @@ Using aliases in scripts is discouraged
 because the command that defines them must be executed
 before the code that uses them is parsed.
 This is fragile and not portable.
+.
 .Pp
 An alias name may be escaped in a command line, so that it is not
 replaced by its alias value, by using quoting characters within or
@@ -568,6 +624,7 @@ normal program with the same name.
 See the
 .Sx Quoting
 subsection.
+.
 .Ss Commands
 The shell interprets the words it reads according to a
 language, the specification of which is outside the scope
@@ -580,9 +637,11 @@ is not a keyword, then the shell has recognized a
 simple command.
 Otherwise, a complex command or some
 other special construct may have been recognized.
+.
 .Ss Simple Commands
 If a simple command has been recognized, the shell performs
 the following actions:
+.
 .Bl -enum
 .It
 Leading words of the form
@@ -593,6 +652,7 @@ the simple command
 Redirection operators and
 their arguments (as described below) are stripped
 off and saved for processing.
+.
 .It
 The remaining words are expanded as described in
 the section called
@@ -605,10 +665,12 @@ If no command name resulted, then the
 .Dq Li name=value
 variable assignments recognized in 1) affect the
 current shell.
+.
 .It
 Redirections are performed as described in
 the next section.
 .El
+.
 .Ss Redirections
 Redirections are used to change where a command reads its input
 or sends its output.
@@ -618,6 +680,7 @@ The overall format
 used for redirection is:
 .Pp
 .D1 Oo Ar n Oc Ar redir-op file
+.
 .Pp
 The
 .Ar redir-op
@@ -627,48 +690,58 @@ The following gives some examples of how these
 operators can be used.
 Note that stdin and stdout are commonly used abbreviations
 for standard input and standard output respectively.
+.
 .Bl -tag -width "1234567890XX" -offset indent
 .It Oo Ar n Oc Ns Li > Ar file
 redirect stdout (or file descriptor
 .Ar n )
 to
 .Ar file
+.
 .It Oo Ar n Oc Ns Li >| Ar file
 same as above, but override the
 .Fl C
 option
+.
 .It Oo Ar n Oc Ns Li >> Ar file
 append stdout (or file descriptor
 .Ar n )
 to
 .Ar file
+.
 .It Oo Ar n Oc Ns Li < Ar file
 redirect stdin (or file descriptor
 .Ar n )
 from
 .Ar file
+.
 .It Oo Ar n Oc Ns Li <> Ar file
 redirect stdin (or file descriptor
 .Ar n )
 to and from
 .Ar file
+.
 .It Oo Ar n1 Oc Ns Li <& Ns Ar n2
 duplicate stdin (or file descriptor
 .Ar n1 )
 from file descriptor
 .Ar n2
+.
 .It Oo Ar n Oc Ns Li <&-
 close stdin (or file descriptor
 .Ar n )
+.
 .It Oo Ar n1 Oc Ns Li >& Ns Ar n2
 duplicate stdout (or file descriptor
 .Ar n1 )
 to file descriptor
 .Ar n2
+.
 .It Oo Ar n Oc Ns Li >&-
 close stdout (or file descriptor
 .Ar n )
 .El
+.
 .Pp
 The following redirection is often called a
 .Dq here-document .
@@ -678,6 +751,7 @@ The following redirection is often called a
 .Ar ...
 .Ar delimiter
 .Ed
+.
 .Pp
 All the text on successive lines up to the delimiter is
 saved away and made available to the command on standard
@@ -700,11 +774,13 @@ then leading tabs
 in the
 .Ar here-doc-text
 are stripped.
+.
 .Ss Search and Execution
 There are three types of commands: shell functions,
 built-in commands, and normal programs.
 The command is searched for (by name) in that order.
 The three types of commands are all executed in a different way.
+.
 .Pp
 When a shell function is executed, all of the shell positional
 parameters (except
@@ -719,6 +795,7 @@ Then the command given in the function definition is executed.
 The positional parameters are restored to their original values
 when the command completes.
 This all occurs within the current shell.
+.
 .Pp
 Shell built-in commands are executed internally to the shell, without
 spawning a new process.
@@ -729,6 +806,7 @@ operand errors cause a script to be aborted.
 Special builtins cannot be overridden with a function.
 Both regular and special builtins can affect the shell in ways
 normal programs cannot.
+.
 .Pp
 Otherwise, if the command name does not match a function
 or built-in command, the command is searched for as a normal
@@ -748,12 +826,14 @@ but appears to be a text file,
 the shell will run a new instance of
 .Nm
 to interpret it.
+.
 .Pp
 Note that previous versions of this document
 and the source code itself misleadingly and sporadically
 refer to a shell script without a magic number
 as a
 .Dq "shell procedure" .
+.
 .Ss Path Search
 When locating a command, the shell first looks to see if
 it has a shell function by that name.
@@ -761,10 +841,12 @@ Then it looks for a
 built-in command by that name.
 If a built-in command is not found,
 one of two things happen:
+.
 .Bl -enum
 .It
 Command names containing a slash are simply executed without
 performing any searches.
+.
 .It
 The shell searches each entry in the
 .Va PATH
@@ -780,6 +862,7 @@ The current directory
 may be indicated implicitly by an empty directory name,
 or explicitly by a single period.
 .El
+.
 .Ss Command Exit Status
 Each command has an exit status that can influence the behavior
 of other shell commands.
@@ -790,19 +873,23 @@ The man page for each command
 should indicate the various exit codes and what they mean.
 Additionally, the built-in commands return exit codes, as does
 an executed shell function.
+.
 .Pp
 If a command is terminated by a signal, its exit status is greater than 128.
 The signal name can be found by passing the exit status to
 .Li kill -l .
+.
 .Pp
 If there is no command word,
 the exit status is the exit status of the last command substitution executed,
 or zero if the command does not contain any command substitutions.
+.
 .Ss Complex Commands
 Complex commands are combinations of simple commands
 with control operators or keywords, together creating a larger complex
 command.
 More generally, a command is one of the following:
+.
 .Bl -item -offset indent
 .It
 simple command
@@ -815,10 +902,12 @@ compound command
 .It
 function definition
 .El
+.
 .Pp
 Unless otherwise stated, the exit status of a command is
 that of the last simple command executed by the command,
 or zero if no simple command was executed.
+.
 .Ss Pipelines
 A pipeline is a sequence of one or more commands separated
 by the control operator
@@ -828,10 +917,12 @@ the last command is connected to the standard input
 of the next command.
 The standard output of the last
 command is inherited from the shell, as usual.
+.
 .Pp
 The format for a pipeline is:
 .Pp
 .D1 Oo Li \&! Oc Ar command1 Op Li \&| Ar command2 ...
+.
 .Pp
 The standard output of
 .Ar command1
@@ -841,6 +932,7 @@ The standard input, standard output, or
 both of a command is considered to be assigned by the
 pipeline before any redirection specified by redirection
 operators that are part of the command.
+.
 .Pp
 Note that unlike some other shells,
 .Nm
@@ -848,9 +940,11 @@ executes each process in a pipeline with more than one command
 in a subshell environment and as a child of the
 .Nm
 process.
+.
 .Pp
 If the pipeline is not in the background (discussed later),
 the shell waits for all commands to complete.
+.
 .Pp
 If the keyword
 .Ic !\&
@@ -863,6 +957,7 @@ That is, if
 the last command returns zero, the exit status is 1; if
 the last command returns greater than zero, the exit status
 is zero.
+.
 .Pp
 Because pipeline assignment of standard input or standard
 output or both takes place before redirection, it can be
@@ -870,11 +965,13 @@ modified by redirection.
 For example:
 .Pp
 .Dl "command1 2>&1 | command2"
+.
 .Pp
 sends both the standard output and standard error of
 .Ar command1
 to the standard input of
 .Ar command2 .
+.
 .Pp
 A
 .Ql \&;
@@ -886,6 +983,7 @@ to be executed sequentially;
 an
 .Ql &
 causes asynchronous execution of the preceding AND-OR-list.
+.
 .Ss Background Commands (&)
 If a command is terminated by the control operator ampersand
 .Pq Ql & ,
@@ -894,16 +992,20 @@ the shell executes the command in a subshell environment (see
 below) and asynchronously;
 the shell does not wait for the command to finish
 before executing the next command.
+.
 .Pp
 The format for running a command in background is:
 .Pp
 .D1 Ar command1 Li & Op Ar command2 Li & Ar ...
+.
 .Pp
 If the shell is not interactive, the standard input of an
 asynchronous command is set to
 .Pa /dev/null .
+.
 .Pp
 The exit status is zero.
+.
 .Ss Lists (Generally Speaking)
 A list is a sequence of zero or more commands separated by
 newlines, semicolons, or ampersands,
@@ -914,6 +1016,7 @@ If command is followed by an ampersand, the shell starts the
 command and immediately proceeds onto the next command;
 otherwise it waits for the command to terminate before
 proceeding to the next one.
+.
 .Ss Short-Circuit List Operators
 .Dq Li &&
 and
@@ -929,6 +1032,7 @@ status of the first command is nonzero.
 and
 .Dq Li ||
 both have the same priority.
+.
 .Ss Flow-Control Constructs (if, while, for, case)
 The syntax of the
 .Ic if
@@ -941,6 +1045,7 @@ command is:
 .Op Ic else Ar list
 .Ic fi
 .Ed
+.
 .Pp
 The exit status is that of selected
 .Ic then
@@ -948,6 +1053,7 @@ or
 .Ic else
 list,
 or zero if no list was selected.
+.
 .Pp
 The syntax of the
 .Ic while
@@ -957,6 +1063,7 @@ command is:
 .Ic do Ar list
 .Ic done
 .Ed
+.
 .Pp
 The two lists are executed repeatedly while the exit status of the
 first list is zero.
@@ -968,9 +1075,11 @@ in place of
 .Ic while ,
 which causes it to
 repeat until the exit status of the first list is zero.
+.
 .Pp
 The exit status is that of the last execution of the second list,
 or zero if it was never executed.
+.
 .Pp
 The syntax of the
 .Ic for
@@ -980,6 +1089,7 @@ command is:
 .Ic do Ar list
 .Ic done
 .Ed
+.
 .Pp
 If
 .Ic in
@@ -996,6 +1106,7 @@ commands may be replaced with
 .Ql {
 and
 .Ql } .
+.
 .Pp
 The syntax of the
 .Ic break
@@ -1004,6 +1115,7 @@ and
 commands is:
 .D1 Ic break Op Ar num
 .D1 Ic continue Op Ar num
+.
 .Pp
 The
 .Ic break
@@ -1018,6 +1130,7 @@ The
 .Ic continue
 command continues with the next iteration of the innermost loop.
 These are implemented as special built-in commands.
+.
 .Pp
 The syntax of the
 .Ic case
@@ -1028,6 +1141,7 @@ command is:
 .Ar ...
 .Ic esac
 .Ed
+.
 .Pp
 The pattern can actually be one or more patterns
 (see
@@ -1052,6 +1166,7 @@ continuing until a list terminated with
 or the end of the
 .Ic case
 command.
+.
 .Ss Grouping Commands Together
 Commands may be grouped by writing either
 .Pp
@@ -1065,6 +1180,7 @@ or
 .Bd -literal -offset -ident
 .No { Ar list ; }
 .Ed
+.
 .Pp
 The first form executes the commands in a subshell environment.
 A subshell environment has its own copy of:
@@ -1094,18 +1210,22 @@ Shell functions.
 .It
 Shell aliases.
 .El
+.
 .Pp
 These are copied from the parent shell environment,
 except that trapped (but not ignored) signals are reset to the default action
 and known jobs are cleared.
 Any changes do not affect the parent shell environment.
+.
 .Pp
 A subshell environment may be implemented as a child process or differently.
 If job control is enabled in an interactive shell,
 commands grouped in parentheses can be suspended and continued as a unit.
+.
 .Pp
 For compatibility with other shells,
 two open parentheses in sequence should be separated by whitespace.
+.
 .Pp
 The second form never forks another shell,
 so it is slightly more efficient.
@@ -1114,10 +1234,12 @@ redirect their output as though they were one program:
 .Bd -literal -offset indent
 { echo -n "hello"; echo " world"; } > greeting
 .Ed
+.
 .Ss Functions
 The syntax of a function definition is
 .Pp
 .D1 Ar name Li \&( \&) Ar command
+.
 .Pp
 A function definition is an executable statement; when
 executed it installs a function named
@@ -1131,6 +1253,7 @@ enclosed between
 .Ql {
 and
 .Ql } .
+.
 .Pp
 Variables may be declared to be local to a function by
 using the
@@ -1140,12 +1263,14 @@ This should appear as the first statement of a function,
 and the syntax is:
 .Pp
 .D1 Ic local Oo Ar variable ... Oc Op Fl
+.
 .Pp
 The
 .Ic local
 command is implemented as a built-in command.
 The exit status is zero
 unless the command is not in a function or a variable name is invalid.
+.
 .Pp
 When a variable is made local, it inherits the initial
 value and exported and readonly flags from the variable
@@ -1169,6 +1294,7 @@ declared inside
 .Em f ,
 not to the global variable named
 .Va x .
+.
 .Pp
 The only special parameter that can be made local is
 .Ql - .
@@ -1182,12 +1308,14 @@ changed via the
 command inside the function to be
 restored to their original values when the function
 returns.
+.
 .Pp
 The syntax of the
 .Ic return
 command is
 .Pp
 .D1 Ic return Op Ar exitstatus
+.
 .Pp
 It terminates the current executional scope, returning from the closest
 nested function or sourced script;
@@ -1196,6 +1324,7 @@ it exits the shell instance.
 The
 .Ic return
 command is implemented as a special built-in command.
+.
 .Ss Variables and Parameters
 The shell maintains a set of parameters.
 A parameter
@@ -1210,14 +1339,17 @@ variables.
 New variables can be set using the form
 .Pp
 .D1 Ar name Ns = Ns Ar value
+.
 .Pp
 A parameter can also be denoted by a number
 or a special character as explained below.
+.
 .Pp
 Assignments are expanded differently from other words:
 tilde expansion is also performed after the equals sign and after any colon
 and usernames are also terminated by colons,
 and field splitting and pathname expansion are not performed.
+.
 .Pp
 This special expansion applies not only to assignments that form a simple
 command by themselves or precede a command word,
@@ -1232,6 +1364,7 @@ For this, the builtin's name must be literal
 and may optionally be preceded by one or more literal instances of
 .Ic command
 without options.
+.
 .Ss Positional Parameters
 A positional parameter is a parameter denoted by a number greater than zero.
 The shell sets these initially to the values of its command line
@@ -1239,11 +1372,13 @@ arguments that follow the name of the shell script.
 The
 .Ic set
 built-in command can also be used to set or reset them.
+.
 .Ss Special Parameters
 Special parameters are parameters denoted by a single special character
 or the digit zero.
 They are shown in the following list, exactly as they would appear in input
 typed by the user or in the source of a shell script.
+.
 .Bl -hang
 .It Li $*
 Expands to the positional parameters, starting from one.
@@ -1256,6 +1391,7 @@ variable,
 or by a space if
 .Va IFS
 is unset.
+.
 .It Li $@
 Expands to the positional parameters, starting from one.
 When
@@ -1283,10 +1419,13 @@ the two arguments:
 .Bd -literal -offset indent
 "abc"   "def ghi"
 .Ed
+.
 .It Li $#
 Expands to the number of positional parameters.
+.
 .It Li $?
 Expands to the exit status of the most recent pipeline.
+.
 .It Li $-
 (hyphen) Expands to the current option flags (the single-letter
 option names concatenated into a string) as specified on
@@ -1294,12 +1433,14 @@ invocation, by the
 .Ic set
 built-in command, or implicitly
 by the shell.
+.
 .It Li $$
 Expands to the process ID of the invoked shell.
 A subshell
 retains the same value of
 .Va $
 as its parent.
+.
 .It Li $!
 Expands to the process ID of the most recent background
 command executed from the current shell.
@@ -1310,6 +1451,7 @@ If this parameter is referenced, the shell will remember
 the process ID and its exit status until the
 .Ic wait
 built-in command reports completion of the process.
+.
 .It Li $0
 (zero) Expands to the name of the shell script if passed on the command line,
 the
@@ -1318,31 +1460,38 @@ operand if given (with
 .Fl c )
 or otherwise argument 0 passed to the shell.
 .El
+.
 .Ss Special Variables
 The following variables are set by the shell or
 have special meaning to it:
+.
 .Bl -tag -width ".Va HISTSIZE"
 .It Va CDPATH
 The search path used with the
 .Ic cd
 built-in.
+.
 .It Va EDITOR
 The fallback editor used with the
 .Ic fc
 built-in.
 If not set, the default editor is
 .Xr ed 1 .
+.
 .It Va FCEDIT
 The default editor used with the
 .Ic fc
 built-in.
+.
 .It Va HISTSIZE
 The number of previous commands that are accessible.
+.
 .It Va HOME
 The user's home directory,
 used in tilde expansion and as a default directory for the
 .Ic cd
 built-in.
+.
 .It Va IFS
 Input Field Separators.
 This is initialized at startup to
@@ -1357,13 +1506,16 @@ is unset, but not if it is set to the empty string.
 See the
 .Sx White Space Splitting
 section for more details.
+.
 .It Va LINENO
 The current line number in the script or function.
+.
 .It Va MAIL
 The name of a mail file, that will be checked for the arrival of new
 mail.
 Overridden by
 .Va MAILPATH .
+.
 .It Va MAILPATH
 A colon
 .Pq Ql \&:
@@ -1373,15 +1525,18 @@ This variable overrides the
 .Va MAIL
 setting.
 There is a maximum of 10 mailboxes that can be monitored at once.
+.
 .It Va OPTIND
 The index of the next argument to be processed by
 .Ic getopts .
 This is initialized to 1 at startup.
+.
 .It Va PATH
 The default search path for executables.
 See the
 .Sx Path Search
 section for details.
+.
 .It Va PPID
 The parent process ID of the invoked shell.
 This is set at startup
@@ -1389,6 +1544,7 @@ unless this variable is in the environment.
 A later change of parent process ID is not reflected.
 A subshell retains the same value of
 .Va PPID .
+.
 .It Va PS1
 The primary prompt string, which defaults to
 .Dq Li "$ " ,
@@ -1415,34 +1571,40 @@ for superusers.
 .It Li \e\e
 A literal backslash.
 .El
+.
 .It Va PS2
 The secondary prompt string, which defaults to
 .Dq Li "> " .
 .Va PS2
 may include any of the formatting sequences from
 .Va PS1 .
+.
 .It Va PS4
 The prefix for the trace output (if
 .Fl x
 is active).
 The default is
 .Dq Li "+ " .
+.
 .It Va RPS1
 The primary right prompt string.
 .Va RPS1
 may include any of the formatting sequences from
 .Va PS1 .
+.
 .It Va RPS2
 The secondary right prompt string.
 .Va RPS2
 may include any of the formatting sequences from
 .Va PS1 .
 .El
+.
 .Ss Word Expansions
 This clause describes the various expansions that are
 performed on words.
 Not all expansions are performed on
 every word, as explained later.
+.
 .Pp
 Tilde expansions, parameter expansions, command substitutions,
 arithmetic expansions, and quote removals that occur within
@@ -1455,6 +1617,7 @@ the expansion of the special parameter
 .Va @
 within double-quotes,
 as was described above.
+.
 .Pp
 The order of word expansion is:
 .Bl -enum
@@ -1473,11 +1636,13 @@ option is in effect).
 .It
 Quote Removal.
 .El
+.
 .Pp
 The
 .Ql $
 character is used to introduce parameter expansion, command
 substitution, or arithmetic expansion.
+.
 .Ss Tilde Expansion (substituting a user's home directory)
 A word beginning with an unquoted tilde character
 .Pq Ql ~
@@ -1493,6 +1658,7 @@ username is missing (as in
 the tilde is replaced with the value of the
 .Va HOME
 variable (the current user's home directory).
+.
 .Ss Parameter Expansion
 The format for parameter expansion is as follows:
 .Pp
@@ -1521,6 +1687,7 @@ as an extension there may be unquoted parts
 .Ql }
 within such parts are also not examined in determining the matching
 .Ql } .
+.
 .Pp
 The simplest form for parameter expansion is:
 .Pp
@@ -1529,6 +1696,7 @@ The simplest form for parameter expansion is:
 The value, if any, of
 .Ar parameter
 is substituted.
+.
 .Pp
 The parameter name or symbol can be enclosed in braces, which are
 optional except for positional parameters with more than one digit or
@@ -1544,9 +1712,11 @@ expansion, with the exception of the special parameter
 Pathname expansion is not performed on the results of the
 expansion.
 .El
+.
 .Pp
 In addition, a parameter expansion can be modified by using one of the
 following formats.
+.
 .Bl -tag -width indent
 .It Li ${ Ns Ar parameter Ns Li :- Ns Ar word Ns Li }
 Use Default Values.
@@ -1557,6 +1727,7 @@ is unset or null, the expansion of
 is substituted; otherwise, the value of
 .Ar parameter
 is substituted.
+.
 .It Li ${ Ns Ar parameter Ns Li := Ns Ar word Ns Li }
 Assign Default Values.
 If
@@ -1575,6 +1746,7 @@ does not prevent field splitting or pathname expansion.
 Only variables, not positional
 parameters or special parameters, can be
 assigned in this way.
+.
 .It Li ${ Ns Ar parameter Ns Li :? Ns Oo Ar word Oc Ns Li }
 Indicate Error if Null or Unset.
 If
@@ -1591,6 +1763,7 @@ Otherwise, the value of
 is substituted.
 An
 interactive shell need not exit.
+.
 .It Li ${ Ns Ar parameter Ns Li :+ Ns Ar word Ns Li }
 Use Alternate Value.
 If
@@ -1600,10 +1773,12 @@ otherwise, the expansion of
 .Ar word
 is substituted.
 .El
+.
 .Pp
 In the parameter expansions shown previously, use of the colon in the
 format results in a test for a parameter that is unset or null; omission
 of the colon results in a test for a parameter that is only unset.
+.
 .Pp
 The
 .Ar word
@@ -1619,6 +1794,7 @@ The length in characters of
 the value of
 .Ar parameter .
 .El
+.
 .Pp
 The following four varieties of parameter expansion provide for substring
 processing.
@@ -1635,6 +1811,7 @@ the result of the expansion is unspecified.
 Enclosing the full parameter expansion string in double-quotes does not
 cause the following four varieties of pattern characters to be quoted,
 whereas quoting characters within the braces has this effect.
+.
 .Bl -tag -width indent
 .It Li ${ Ns Ar parameter Ns Li % Ns Ar word Ns Li }
 Remove Smallest Suffix Pattern.
@@ -1646,6 +1823,7 @@ parameter expansion then results in
 .Ar parameter ,
 with the smallest portion of the
 suffix matched by the pattern deleted.
+.
 .It Li ${ Ns Ar parameter Ns Li %% Ns Ar word Ns Li }
 Remove Largest Suffix Pattern.
 The
@@ -1656,6 +1834,7 @@ parameter expansion then results in
 .Ar parameter ,
 with the largest portion of the
 suffix matched by the pattern deleted.
+.
 .It Li ${ Ns Ar parameter Ns Li # Ns Ar word Ns Li }
 Remove Smallest Prefix Pattern.
 The
@@ -1666,6 +1845,7 @@ parameter expansion then results in
 .Ar parameter ,
 with the smallest portion of the
 prefix matched by the pattern deleted.
+.
 .It Li ${ Ns Ar parameter Ns Li ## Ns Ar word Ns Li }
 Remove Largest Prefix Pattern.
 The
@@ -1677,6 +1857,7 @@ parameter expansion then results in
 with the largest portion of the
 prefix matched by the pattern deleted.
 .El
+.
 .Ss Command Substitution
 Command substitution allows the output of a command to be substituted in
 place of the command name itself.
@@ -1688,6 +1869,7 @@ the command is enclosed as follows:
 or the backquoted version:
 .Pp
 .D1 Li ` Ns Ar command Ns Li `
+.
 .Pp
 The shell expands the command substitution by executing command
 and replacing the command substitution
@@ -1709,6 +1891,7 @@ and
 .Ic times
 returns information about the same process
 if they are the only command in a command substitution.
+.
 .Pp
 If a command substitution of the
 .Li $(
@@ -1719,12 +1902,14 @@ and
 .Li (\&
 must be separated by whitespace
 to avoid ambiguity with arithmetic expansion.
+.
 .Ss Arithmetic Expansion
 Arithmetic expansion provides a mechanism for evaluating an arithmetic
 expression and substituting its value.
 The format for arithmetic expansion is as follows:
 .Pp
 .D1 Li $(( Ns Ar expression Ns Li ))
+.
 .Pp
 The
 .Ar expression
@@ -1737,39 +1922,50 @@ for parameter expansion,
 command substitution,
 arithmetic expansion
 and quote removal.
+.
 .Pp
 The allowed expressions are a subset of C expressions,
 summarized below.
+.
 .Bl -tag -width "Variables" -offset indent
 .It Values
 All values are of type
 .Ft intmax_t .
+.
 .It Constants
 Decimal, octal (starting with
 .Li 0 )
 and hexadecimal (starting with
 .Li 0x )
 integer constants.
+.
 .It Variables
 Shell variables can be read and written
 and contain integer constants.
+.
 .It Unary operators
 .Li "! ~ + -"
+.
 .It Binary operators
 .Li "* / % + - << >> < <= > >= == != & ^ | && ||"\&
+.
 .It Assignment operators
 .Li "= += -= *= /= %= <<= >>= &= ^= |="
+.
 .It Conditional operator
 .Li "? :"\&
 .El
+.
 .Pp
 The result of the expression is substituted in decimal.
+.
 .Ss White Space Splitting (Field Splitting)
 In certain contexts,
 after parameter expansion, command substitution, and
 arithmetic expansion the shell scans the results of
 expansions and substitutions that did not occur in double-quotes for
 field splitting and multiple fields can result.
+.
 .Pp
 Characters in
 .Va IFS
@@ -1782,10 +1978,12 @@ and
 .Pc
 are treated differently from other characters in
 .Va IFS .
+.
 .Pp
 Whitespace in
 .Va IFS
 at the beginning or end of a word is discarded.
+.
 .Pp
 Subsequently, a field is delimited by either
 .Bl -enum
@@ -1799,10 +1997,12 @@ surrounding it, or
 one or more whitespace characters in
 .Va IFS .
 .El
+.
 .Pp
 If a word ends with a non-whitespace character in
 .Va IFS ,
 there is no empty field after this character.
+.
 .Pp
 If no field is delimited, the word is discarded.
 In particular, if a word consists solely of an unquoted substitution
@@ -1810,6 +2010,7 @@ and the result of the substitution is null,
 it is removed by field splitting even if
 .Va IFS
 is null.
+.
 .Ss Pathname Expansion (File Name Generation)
 Unless the
 .Fl f
@@ -1831,6 +2032,7 @@ Pathname Expansion,
 the four varieties of parameter expansion for substring processing and the
 .Ic case
 command.
+.
 .Ss Shell Patterns
 A pattern consists of normal characters, which match themselves,
 and meta-characters.
@@ -1844,6 +2046,7 @@ When command or variable substitution is performed and the dollar sign
 or back quotes are not double-quoted, the value of the
 variable or the output of the command is scanned for these
 characters and they are turned into meta-characters.
+.
 .Pp
 An asterisk
 .Pq Ql *
@@ -1880,6 +2083,7 @@ the first character of the character class.
 A caret
 .Pq Ql ^
 has the same effect but is non-standard.
+.
 .Pp
 To include a
 .Ql \&]
@@ -1892,11 +2096,13 @@ if any).
 To include a
 .Ql - ,
 make it the first or last character listed.
+.
 .Ss Built-in Commands
 This section lists the built-in commands.
 .Bl -tag -width indent
 .It Ic \&:
 A null command that returns a 0 (true) exit value.
+.
 .It Ic \&. Ar file
 The commands in the specified file are read and executed by the shell.
 The
@@ -1915,11 +2121,13 @@ for the file.
 If it is not found in the
 .Va PATH ,
 it is sought in the current working directory.
+.
 .It Ic \&[
 A built-in equivalent of
 .Xr test 1 .
 This version is documented in
 .Xr cash-test 1 .
+.
 .It Ic alias Oo Ar name Ns Oo = Ns Ar string Oc ... Oc
 If
 .Ar name Ns = Ns Ar string
@@ -1942,23 +2150,28 @@ suitable for re-input to the shell.
 Also see the
 .Sx Aliases
 subsection.
+.
 .It Ic bg Op Ar job ...
 Continue the specified jobs
 (or the current job if no jobs are given)
 in the background.
+.
 .It Ic bind Oo Fl aeklrsv Oc Oo Ar key Oo Ar command Oc Oc
 List or alter key bindings for the line editor.
 This command is documented in
 .Xr editrc 5 .
+.
 .It Ic break Op Ar num
 See the
 .Sx Flow-Control Constructs
 subsection.
+.
 .It Ic builtin Ar cmd Op Ar arg ...
 Execute the specified built-in command,
 .Ar cmd .
 This is useful when the user wishes to override a shell function
 with the same name as a built-in command.
+.
 .It Ic cd Oo Fl L | P Oc Oo Fl e Oc Op Ar directory
 .It Ic cd Fl
 Switch to the specified
@@ -2003,6 +2216,7 @@ mechanism was used or if
 .Ar directory
 was
 .Fl .
+.
 .Pp
 If the
 .Fl P
@@ -2017,6 +2231,7 @@ option is specified,
 .Pa ..
 is handled logically.
 This is the default.
+.
 .Pp
 The
 .Fl e
@@ -2026,15 +2241,18 @@ to return exit status 1 if the full pathname of the new directory
 cannot be determined reliably or at all.
 Normally this is not considered an error,
 although a warning is printed.
+.
 .Pp
 If changing the directory fails, the exit status is greater than 1.
 If the directory is changed, the exit status is 0, or also 1 if
 .Fl e
 was given.
+.
 .It Ic chdir
 A synonym for the
 .Ic cd
 built-in command.
+.
 .It Ic command Oo Fl p Oc Op Ar utility Op Ar argument ...
 .It Ic command Oo Fl p Oc Fl v Ar utility
 .It Ic command Oo Fl p Oc Fl V Ar utility
@@ -2045,6 +2263,7 @@ If
 .Ar utility
 is a special builtin,
 it is executed as if it were a regular builtin.
+.
 .Pp
 If the
 .Fl p
@@ -2052,6 +2271,7 @@ option is specified, the command search is performed using a
 default value of
 .Va PATH
 that is guaranteed to find all of the standard utilities.
+.
 .Pp
 If the
 .Fl v
@@ -2063,6 +2283,7 @@ For ordinary commands the output is the path name; for shell built-in
 commands, shell functions and keywords only the name is written.
 Aliases are printed as
 .Dq Ic alias Ar name Ns = Ns Ar value .
+.
 .Pp
 The
 .Fl V
@@ -2083,10 +2304,12 @@ a shell keyword
 or
 an alias for
 .Ar value .
+.
 .It Ic continue Op Ar num
 See the
 .Sx Flow-Control Constructs
 subsection.
+.
 .It Ic echo Oo Fl e | n Oc Op Ar string ...
 Print a space-separated list of the arguments to the standard output
 and append a newline character.
@@ -2124,6 +2347,7 @@ Literal backslash
 (Zero) The character whose octal value is
 .Ar nnn
 .El
+.
 .Pp
 If
 .Ar string
@@ -2143,15 +2367,18 @@ $ echo -e a\e\e\e\eb
 a\eb
 .Ed
 .El
+.
 .Pp
 Only one of the
 .Fl e
 and
 .Fl n
 options may be specified.
+.
 .It Ic eval Ar string ...
 Concatenate all the arguments with spaces.
 Then re-parse and execute the command.
+.
 .It Ic exec Op Ar command Op arg ...
 Unless
 .Ar command
@@ -2164,6 +2391,7 @@ command are marked as permanent,
 so that they are not undone when the
 .Ic exec
 command finishes.
+.
 .It Ic exit Op Ar exitstatus
 Terminate the shell process.
 If
@@ -2177,6 +2405,7 @@ if the shell is executing a trap for a signal,
 the shell exits by resending the signal to itself.
 Otherwise, the exit status of the preceding command is used.
 The exit status should be an integer between 0 and 255.
+.
 .It Ic export Ar name ...
 .It Ic export Op Fl p
 The specified names are exported so that they will
@@ -2198,8 +2427,10 @@ If the
 option is specified, the exported variables are printed as
 .Dq Ic export Ar name Ns = Ns Ar value
 lines, suitable for re-input to the shell.
+.
 .It Ic false
 A null command that returns a non-zero (false) exit value.
+.
 .It Ic fc Oo Fl e Ar editor Oc Op Ar first Op Ar last
 .It Ic fc Fl l Oo Fl nr Oc Op Ar first Op Ar last
 .It Ic fc Fl s Oo Ar old Ns = Ns Ar new Oc Op Ar first
@@ -2207,6 +2438,7 @@ The
 .Ic fc
 built-in command lists, or edits and re-executes,
 commands previously entered to an interactive shell.
+.
 .Bl -tag -width indent
 .It Fl e Ar editor
 Use the editor named by
@@ -2233,6 +2465,7 @@ If
 is null or unset,
 .Xr ed 1
 is used as the editor.
+.
 .It Fl l No (ell)
 List the commands rather than invoking
 an editor on them.
@@ -2244,9 +2477,11 @@ and
 operands, as affected by
 .Fl r ,
 with each command preceded by the command number.
+.
 .It Fl n
 Suppress command numbers when listing with
 .Fl l .
+.
 .It Fl r
 Reverse the order of the commands listed
 (with
@@ -2256,8 +2491,10 @@ or edited
 .Fl l
 nor
 .Fl s ) .
+.
 .It Fl s
 Re-execute the command without invoking an editor.
+.
 .It Ar first
 .It Ar last
 Select the commands to list or edit.
@@ -2270,12 +2507,14 @@ The value of
 or
 .Ar last
 or both are one of the following:
+.
 .Bl -tag -width indent
 .It Oo Cm + Oc Ns Ar num
 A positive number representing a command number;
 command numbers can be displayed with the
 .Fl l
 option.
+.
 .It Fl Ar num
 A negative decimal number representing the
 command that was executed
@@ -2283,6 +2522,7 @@ command that was executed
 of
 commands previously.
 For example, \-1 is the immediately previous command.
+.
 .It Ar string
 A string indicating the most recently entered command
 that begins with that string.
@@ -2293,6 +2533,7 @@ operand is not also specified with
 the string form of the first operand cannot contain an embedded equal sign.
 .El
 .El
+.
 .Pp
 The following variables affect the execution of
 .Ic fc :
@@ -2302,10 +2543,12 @@ Name of the editor to use for history editing.
 .It Va HISTSIZE
 The number of previous commands that are accessible.
 .El
+.
 .It Ic fg Op Ar job
 Move the specified
 .Ar job
 or the current job to the foreground.
+.
 .It Ic getopts Ar optstring var
 The POSIX
 .Ic getopts
@@ -2330,11 +2573,13 @@ is set to
 It returns a false value (1) when it encounters the end of the options.
 A new set of arguments may be parsed by assigning
 .Li OPTIND=1 .
+.
 .It Ic hash Oo Fl rv Oc Op Ar command ...
 The shell maintains a hash table which remembers the locations of commands.
 With no arguments whatsoever, the
 .Ic hash
 command prints out the contents of this table.
+.
 .Pp
 With arguments, the
 .Ic hash
@@ -2351,17 +2596,20 @@ The
 option causes the
 .Ic hash
 command to delete all the entries in the hash table except for functions.
+.
 .It Ic jobid Op Ar job
 Print the process IDs of the processes in the specified
 .Ar job .
 If the
 .Ar job
 argument is omitted, use the current job.
+.
 .It Ic jobs Oo Fl lps Oc Op Ar job ...
 Print information about the specified jobs, or all jobs if no
 .Ar job
 argument is given.
 The information printed includes job ID, status and command name.
+.
 .Pp
 If the
 .Fl l
@@ -2374,21 +2622,25 @@ If the
 .Fl s
 option is specified, only the PIDs of the job commands are printed, one per
 line.
+.
 .It Ic kill
 A built-in equivalent of
 .Xr kill 1
 that additionally supports sending signals to jobs.
 This version is documented in
 .Xr cash-kill 1 .
+.
 .It Ic local Oo Ar variable ... Oc Op Fl
 See the
 .Sx Functions
 subsection.
+.
 .It Ic printf
 A built-in equivalent of
 .Xr printf 1 .
 This version is documented in
 .Xr cash-printf 1 .
+.
 .It Ic pwd Op Fl L | P
 Print the path of the current directory.
 The built-in command may
@@ -2402,6 +2654,7 @@ renamed,
 the built-in version of
 .Xr pwd 1
 will continue to print the old name for the directory.
+.
 .Pp
 If the
 .Fl P
@@ -2411,6 +2664,7 @@ If the
 option is specified, the shell's notion of the current directory
 is printed (symbolic links are not resolved).
 This is the default.
+.
 .It Ic read Oo Fl p Ar prompt Oc Oo
 .Fl t Ar timeout Oc Oo Fl er Oc Ar variable ...
 The
@@ -2434,6 +2688,7 @@ that separated them)
 are assigned to the last variable.
 If there are more variables than pieces, the remaining
 variables are assigned the null string.
+.
 .Pp
 Backslashes are treated specially, unless the
 .Fl r
@@ -2447,6 +2702,7 @@ character, the backslash will be deleted and the following
 character will be treated as though it were not in
 .Va IFS ,
 even if it is.
+.
 .Pp
 If the
 .Fl t
@@ -2469,15 +2725,18 @@ to explicitly specify seconds, minutes or hours.
 If none is supplied,
 .Ql s
 is assumed.
+.
 .Pp
 The
 .Fl e
 option exists only for backward compatibility with older scripts.
+.
 .Pp
 The exit status is 0 on success, 1 on end of file,
 between 2 and 128 if an error occurs
 and greater than 128 if a trapped signal interrupts
 .Ic read .
+.
 .It Ic readonly Oo Fl p Oc Op Ar name ...
 Each specified
 .Ar name
@@ -2497,18 +2756,22 @@ If the
 option is specified, the read-only variables are printed as
 .Dq Ic readonly Ar name Ns = Ns Ar value
 lines, suitable for re-input to the shell.
+.
 .It Ic return Op Ar exitstatus
 See the
 .Sx Functions
 subsection.
+.
 .It Ic set Oo Fl /+abCEefIimnpTuVvx Oc Oo Fl /+o Ar longname Oc Oo
 .Fl c Ar string Oc Op Fl - Ar arg ...
 The
 .Ic set
 command performs three different functions:
+.
 .Bl -item
 .It
 With no arguments, it lists the values of all shell variables.
+.
 .It
 If options are given,
 either in short form or using the long
@@ -2516,6 +2779,7 @@ either in short form or using the long
 form,
 it sets or clears the specified options as described in the section called
 .Sx Argument List Processing .
+.
 .It
 If the
 .Dq Fl -
@@ -2542,6 +2806,7 @@ which the
 .Ic set
 command will interpret as a request to enable or disable options.
 .El
+.
 .It Ic setvar Ar variable value
 Assigns the specified
 .Ar value
@@ -2555,6 +2820,7 @@ In general it is better to write
 .Dq Ar variable Ns = Ns Ar value
 rather than using
 .Ic setvar .
+.
 .It Ic shift Op Ar n
 Shift the positional parameters
 .Ar n
@@ -2575,16 +2841,19 @@ decreasing the value of
 by one.
 For portability, shifting if there are zero positional parameters
 should be avoided, since the shell may abort.
+.
 .It Ic test
 A built-in equivalent of
 .Xr test 1 .
 This version is documented in
 .Xr cash-test 1 .
+.
 .It Ic times
 Print the amount of time spent executing the shell process and its children.
 The first output line shows the user and system times for the shell process
 itself, the second one contains the user and system times for the
 children.
+.
 .It Ic trap Oo Ar action Oc Ar signal ...
 .It Ic trap Fl l
 Cause the shell to parse and execute
@@ -2612,14 +2881,17 @@ the shell resets trapped (but not ignored) signals to the default action.
 The
 .Ic trap
 command has no effect on signals that were ignored on entry to the shell.
+.
 .Pp
 Option
 .Fl l
 causes the
 .Ic trap
 command to display a list of valid signal names.
+.
 .It Ic true
 A null command that returns a 0 (true) exit value.
+.
 .It Ic type Op Ar name ...
 Interpret each
 .Ar name
@@ -2631,6 +2903,7 @@ and not found.
 For aliases the alias expansion is printed;
 for commands and tracked aliases
 the complete pathname of the command is printed.
+.
 .It Ic ulimit Oo Fl HSabcdfklmnopstuvw Oc Op Ar limit
 Set or display resource limits (see
 .Xr getrlimit 2 ) .
@@ -2638,6 +2911,7 @@ If
 .Ar limit
 is specified, the named resource will be set;
 otherwise the current resource value will be displayed.
+.
 .Pp
 If
 .Fl H
@@ -2656,6 +2930,7 @@ or
 can be given.
 The default is to display the soft limits,
 and to set both the hard and the soft limits.
+.
 .Pp
 Option
 .Fl a
@@ -2665,6 +2940,7 @@ command to display all resources.
 The parameter
 .Ar limit
 is not acceptable in this mode.
+.
 .Pp
 The remaining options specify which resource value is to be
 displayed or modified.
@@ -2712,6 +2988,7 @@ The maximal virtual size of a process, in kilobytes.
 The maximum amount of swap space reserved or used for this user ID,
 in kilobytes.
 .El
+.
 .It Ic umask Oo Fl S Oc Op Ar mask
 Set the file creation mask (see
 .Xr umask 2 )
@@ -2723,11 +3000,13 @@ If the argument is omitted, the current mask value is printed.
 If the
 .Fl S
 option is specified, the output is symbolic, otherwise the output is octal.
+.
 .It Ic unalias Oo Fl a Oc Op Ar name ...
 The specified alias names are removed.
 If
 .Fl a
 is specified, all aliases are removed.
+.
 .It Ic unset Oo Fl fv Oc Ar name ...
 The specified variables or functions are unset and unexported.
 If the
@@ -2740,6 +3019,7 @@ If the
 option is specified, the
 .Ar name
 arguments are treated as function names.
+.
 .It Ic wait Op Ar job ...
 Wait for each specified
 .Ar job
@@ -2753,6 +3033,7 @@ were a known job that exited with exit status 127.
 If no operands are given, wait for all jobs to complete
 and return an exit status of zero.
 .El
+.
 .Ss Command Line Editing
 When
 .Nm
@@ -2789,6 +3070,7 @@ can be switched between insert mode and command mode by typing
 Hitting
 .Aq return
 while in command mode will pass the line to the shell.
+.
 .Pp
 Similarly, the
 .Dq Li "set -o emacs"
@@ -2797,34 +3079,42 @@ Similarly, the
 command can be used to enable a subset of
 .Nm emacs Ns -style
 command line editing features.
+.
 .Sh ENVIRONMENT
 The following environment variables affect the execution of
 .Nm :
+.
 .Bl -tag -width ".Ev LANGXXXXXX"
 .It Ev ENV
 Initialization file for interactive shells.
+.
 .It Ev LANG , Ev LC_*
 Locale settings.
 These are inherited by children of the shell,
 and is used in a limited manner by the shell itself.
+.
 .It Ev OLDPWD
 The previous current directory.
 This is used and updated by
 .Ic cd .
+.
 .It Ev PWD
 An absolute pathname for the current directory,
 possibly containing symbolic links.
 This is used and updated by the shell.
+.
 .It Ev TERM
 The default terminal setting for the shell.
 This is inherited by children of the shell, and is used in the history
 editing modes.
 .El
+.
 .Pp
 Additionally, environment variables are turned into shell variables
 at startup,
 which may affect the shell as described under
 .Sx Special Variables .
+.
 .Sh FILES
 .Bl -tag -width "/etc/suid_profileXX" -compact
 .It Pa ~/.profile
@@ -2836,6 +3126,7 @@ Shell database.
 .It Pa /etc/suid_profile
 Privileged shell profile.
 .El
+.
 .Sh EXIT STATUS
 Errors that are detected by the shell, such as a syntax error, will
 cause the shell to exit with a non-zero exit status.
@@ -2846,6 +3137,7 @@ executed, or if the
 .Ic exit
 builtin is used with a numeric argument, it
 will return the argument.
+.
 .Sh SEE ALSO
 .Xr builtin 1 ,
 .Xr chsh 1 ,
@@ -2863,6 +3155,7 @@ will return the argument.
 .Xr wctype 3 ,
 .Xr editrc 5 ,
 .Xr shells 5
+.
 .Sh HISTORY
 A
 .Xr sh 1
@@ -2872,6 +3165,7 @@ It was superseded in
 .At v7
 by the Bourne shell, which inherited the name
 .Xr sh 1 .
+.
 .Pp
 The
 .Fx
@@ -2881,6 +3175,7 @@ was rewritten in 1989 under the
 .Bx
 license after the Bourne shell from
 .At V.4 .
+.
 .Pp
 The
 .Nm
@@ -2888,6 +3183,7 @@ utility is based on
 .Xr sh 1
 from
 .Fx 12.0 .
+.
 .Sh AUTHORS
 .An -nosplit
 The
@@ -2896,11 +3192,13 @@ version of
 .Xr sh 1
 was originally written by
 .An Kenneth Almquist .
+.
 .Pp
 The
 .Nm
 utility is developed by
 .An June McEnroe Aq Mt june@causal.agency .
+.
 .Sh BUGS
 The
 .Nm