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-rw-r--r--bin/man1/beef.191
-rw-r--r--bin/man1/bibsort.140
-rw-r--r--bin/man1/bit.155
-rw-r--r--bin/man1/bri.144
-rw-r--r--bin/man1/c.145
-rw-r--r--bin/man1/dtch.167
-rw-r--r--bin/man1/ever.151
-rw-r--r--bin/man1/fbatt.134
-rw-r--r--bin/man1/fbclock.136
-rw-r--r--bin/man1/glitch.177
-rw-r--r--bin/man1/hilex.1218
-rw-r--r--bin/man1/htagml.169
-rw-r--r--bin/man1/modem.131
-rw-r--r--bin/man1/mtags.176
-rw-r--r--bin/man1/nudge.144
-rw-r--r--bin/man1/order.138
-rw-r--r--bin/man1/pbd.166
-rw-r--r--bin/man1/pngo.156
-rw-r--r--bin/man1/psf2png.153
-rw-r--r--bin/man1/psfed.1166
-rw-r--r--bin/man1/ptee.140
-rw-r--r--bin/man1/relay.148
-rw-r--r--bin/man1/scheme.159
-rw-r--r--bin/man1/shotty.192
-rw-r--r--bin/man1/sup.148
-rw-r--r--bin/man1/title.151
-rw-r--r--bin/man1/typer.174
-rw-r--r--bin/man1/up.180
-rw-r--r--bin/man1/when.176
-rw-r--r--bin/man1/xx.168
30 files changed, 1993 insertions, 0 deletions
diff --git a/bin/man1/beef.1 b/bin/man1/beef.1
new file mode 100644
index 00000000..ea52cfa0
--- /dev/null
+++ b/bin/man1/beef.1
@@ -0,0 +1,91 @@
+.Dd August 28, 2019
+.Dt BEEF 1
+.Os
+.
+.Sh NAME
+.Nm beef
+.Nd Befunge-93 interpreter
+.
+.Sh SYNOPSIS
+.Nm
+.Op Ar file
+.
+.Sh DESCRIPTION
+.Nm
+is a Befunge-93 interpreter.
+If no
+.Ar file
+is provided,
+the program is read from standard input.
+.
+.Ss Befunge-93 Command Summary
+.Bl -tag -width "0-9" -compact
+.It \(dq
+toggle string mode
+.It 0-9
+push value
+.It +
+add
+.It -
+subtract
+.It *
+multiply
+.It /
+divide
+.It %
+modulo
+.It !
+not
+.It `
+greater than
+.It >
+right
+.It <
+left
+.It ^
+up
+.It v
+down
+.It ?
+random
+.It _
+horizontal (left) if
+.It |
+vertical (up) if
+.It :
+duplicate
+.It \e
+swap
+.It $
+drop
+.It .
+output integer
+.It ,
+output ASCII
+.It #
+bridge
+.It g
+get (y, x)
+.It p
+put (y, x) = v
+.It &
+input integer
+.It ~
+input ASCII
+.It @
+exit
+.El
+.
+.Sh EXIT STATUS
+.Nm
+exits with the top value left on the stack,
+or 0 if the stack is left empty.
+.
+.Sh STANDARDS
+.Rs
+.%A Chris Pressey
+.%Q Cat's Eye Technologies
+.%T Befunge-93
+.%D September, 1993
+.%U https://github.com/catseye/Befunge-93/blob/master/doc/Befunge-93.markdown
+.Re
diff --git a/bin/man1/bibsort.1 b/bin/man1/bibsort.1
new file mode 100644
index 00000000..07ed91ef
--- /dev/null
+++ b/bin/man1/bibsort.1
@@ -0,0 +1,40 @@
+.Dd February 16, 2021
+.Dt BIBSORT 1
+.Os
+.
+.Sh NAME
+.Nm bibsort
+.Nd reformat bibliography
+.
+.Sh SYNOPSIS
+.Nm
+.Op Ar file
+.
+.Sh DESCRIPTION
+.Nm
+reformats on standard output
+the
+.Em STANDARDS
+section of the
+.Xr mdoc 7
+manual page
+.Ar file
+or standard input.
+Bibliographic references
+are sorted by author last names,
+and formatted in an item list
+with macro lines appearing
+in the order they are formatted by
+.Xr mandoc 1 .
+Additionally,
+.Ic \&%N
+macros referencing RFC numbers
+are rewritten to
+.Ic \&%R
+macros
+and missing
+.Ic \&%U
+macros are added for RFCs.
+.
+.Sh EXAMPLES
+.Dl :%!bibsort
diff --git a/bin/man1/bit.1 b/bin/man1/bit.1
new file mode 100644
index 00000000..b91a10e1
--- /dev/null
+++ b/bin/man1/bit.1
@@ -0,0 +1,55 @@
+.Dd December 30, 2020
+.Dt BIT 1
+.Os
+.
+.Sh NAME
+.Nm bit
+.Nd a calculator
+.
+.Sh SYNOPSIS
+.Nm
+.
+.Sh DESCRIPTION
+.Nm
+is an integer calculator.
+Its syntax resembles that of C expressions,
+with the following changes:
+.
+.Bl -bullet
+.It
+Underscores are allowed in integer literals.
+.It
+The
+.Sy 0b
+prefix is used for binary literals.
+.It
+The
+.Sy ->
+operator is used for arithmetic shift.
+.It
+The unary
+.Sy &
+operator is equivalent to
+.Sy (1 << x) - 1 .
+.It
+The postfix operators
+.Sy K ,
+.Sy M ,
+.Sy G ,
+.Sy T
+are used as constant multipliers.
+.It
+The postfix operator
+.Sy $
+is of lowest precedence and is equivalent to
+wrapping the preceding expression in parentheses.
+.It
+Single-letter (lower case) variables
+can be assigned.
+The variable
+.Sy _
+stores the previous result.
+.El
+.
+.Sh SEE ALSO
+.Xr operator 7
diff --git a/bin/man1/bri.1 b/bin/man1/bri.1
new file mode 100644
index 00000000..54a02322
--- /dev/null
+++ b/bin/man1/bri.1
@@ -0,0 +1,44 @@
+.Dd September 7, 2018
+.Dt BRI 1
+.Os
+.
+.Sh NAME
+.Nm bri
+.Nd backlight brightness control
+.
+.Sh SYNOPSIS
+.Nm
+.Op Ar brightness
+.Nm
+.Cm +
+.Nm
+.Cm -
+.
+.Sh DESCRIPTION
+.Nm
+controls the backlight brightness on Linux.
+.
+.Pp
+With no argument,
+the current brightness is printed.
+With a numerical
+.Ar brightness
+argument,
+the brightness is set.
+.
+.Pp
+The
+.Cm +
+and
+.Cm -
+arguments
+may be repeated any number of times
+and adjust the brightness
+in increments of 16.
+.
+.Sh FILES
+.Bl -tag
+.It Pa /sys/class/backlight
+Files under the first subdirectory found
+are used to control the backlight brightness.
+.El
diff --git a/bin/man1/c.1 b/bin/man1/c.1
new file mode 100644
index 00000000..97384ebe
--- /dev/null
+++ b/bin/man1/c.1
@@ -0,0 +1,45 @@
+.Dd January  9, 2021
+.Dt C 1
+.Os
+.
+.Sh NAME
+.Nm c
+.Nd run C
+.
+.Sh SYNOPSIS
+.Nm
+.Op Fl t
+.Op Fl e Ar expr
+.Op Fl i Ar include
+.Op Ar stmts ...
+.
+.Sh DESCRIPTION
+The
+.Nm
+utility compiles and runs
+C statements wrapped in
+.Fn main
+with common includes.
+If no
+.Ar expr
+or
+.Ar stmts
+are provided,
+statements are read from standard input.
+.
+.Pp
+The arguments are as follows:
+.Bl -tag -width Ds
+.It Fl e Ar expr
+Print the result of the C expression
+.Ar expr
+after executing
+.Ar stmts .
+.It Fl i Ar include
+Add the include file
+.Ar include .
+.It Fl t
+With
+.Fl e ,
+print the type of the expression.
+.El
diff --git a/bin/man1/dtch.1 b/bin/man1/dtch.1
new file mode 100644
index 00000000..e27713e1
--- /dev/null
+++ b/bin/man1/dtch.1
@@ -0,0 +1,67 @@
+.Dd August 12, 2019
+.Dt DTCH 1
+.Os
+.
+.Sh NAME
+.Nm dtch
+.Nd detached sessions
+.
+.Sh SYNOPSIS
+.Nm
+.Op Fl s
+.Ar name
+.Op Ar command ...
+.Nm
+.Fl a
+.Ar name
+.
+.Sh DESCRIPTION
+.Nm
+spawns a
+.Ar command
+in a detachable session.
+If no
+.Ar command
+is given,
+the value of
+.Ev SHELL
+is used.
+The
+.Nm
+process
+should be run as a background job
+or with
+.Xr nohup 1 .
+.
+.Pp
+To attach to an existing session,
+pass the
+.Fl a
+flag.
+To detach from the session,
+type
+.Ic ^Q .
+.
+.Pp
+The arguments are as follows:
+.Bl -tag -width Ds
+.It Fl a
+Attach to an existing session.
+.It Fl s
+Sink the output of
+.Ar command
+while detached.
+.El
+.
+.Sh FILES
+.Bl -tag -width Ds
+.It Pa ~/.dtch
+Directory of UNIX-domain sockets
+for each session.
+.El
+.
+.Sh EXAMPLES
+.Bd -literal -offset indent
+dtch foo vim &
+dtch -a foo
+.Ed
diff --git a/bin/man1/ever.1 b/bin/man1/ever.1
new file mode 100644
index 00000000..8cdab99b
--- /dev/null
+++ b/bin/man1/ever.1
@@ -0,0 +1,51 @@
+.Dd February 24, 2021
+.Dt EVER 1
+.Os
+.
+.Sh NAME
+.Nm ever
+.Nd watch files
+.
+.Sh SYNOPSIS
+.Nm
+.Op Fl iq
+.Ar
+.Ar command
+.Nm
+.Op Fl i
+.Ar
+.Fl -
+.Ar command
+.Op Ar argument ...
+.
+.Sh DESCRIPTION
+.Nm
+executes the
+.Ar command
+whenever
+.Ar file
+is modified.
+.
+.Pp
+The arguments are as follows:
+.Bl -tag -width Ds
+.It Fl i
+Attach the
+.Ar file
+which was modified
+to the standard input of
+.Ar command .
+.It Fl q
+Suppress exit status output.
+.El
+.
+.Sh EXAMPLES
+.Dl ever ever.c make
+.Dl ever when.y ever.c -- make when ever
+.Dl ever -i ever.1 mandoc
+.
+.Sh CAVEATS
+.Nm
+does not support Linux
+since it uses
+.Xr kqueue 2 .
diff --git a/bin/man1/fbatt.1 b/bin/man1/fbatt.1
new file mode 100644
index 00000000..2d30cba7
--- /dev/null
+++ b/bin/man1/fbatt.1
@@ -0,0 +1,34 @@
+.Dd September 7, 2018
+.Dt FBATT 1
+.Os
+.
+.Sh NAME
+.Nm fbatt
+.Nd framebuffer battery indicator
+.
+.Sh SYNOPSIS
+.Nm
+.
+.Sh DESCRIPTION
+.Nm
+displays a battery charge indicator
+in the top-right corner
+of the Linux framebuffer.
+.
+.Sh ENVIRONMENT
+.Bl -tag
+.It Ev FRAMEBUFFER
+The framebuffer device path.
+.El
+.
+.Sh FILES
+.Bl -tag
+.It Pa /dev/fb0
+The default framebuffer device path.
+.It Pa /sys/class/power_supply
+The first subdirectory containing
+.Pa charge_full
+and
+.Pa charge_now
+is used to read the battery charge.
+.El
diff --git a/bin/man1/fbclock.1 b/bin/man1/fbclock.1
new file mode 100644
index 00000000..3195eb42
--- /dev/null
+++ b/bin/man1/fbclock.1
@@ -0,0 +1,36 @@
+.Dd September 7, 2018
+.Dt FBCLOCK 1
+.Os
+.
+.Sh NAME
+.Nm fbclock
+.Nd framebuffer clock
+.
+.Sh SYNOPSIS
+.Nm
+.
+.Sh DESCRIPTION
+.Nm
+displays a clock
+in the top-right corner
+of the Linux framebuffer.
+.
+.Sh ENVIRONMENT
+.Bl -tag
+.It Ev FONT
+Path to gzipped PSF file.
+.
+.It Ev FRAMEBUFFER
+The framebuffer device path.
+.El
+.
+.Sh FILES
+.Bl -tag
+.It Pa /dev/fb0
+The default framebuffer device path.
+.It Pa /usr/share/kbd/consolefonts/Lat2-Terminus16.psfu.gz
+The default font path.
+.El
+.
+.Sh SEE ALSO
+.Xr setfont 8
diff --git a/bin/man1/glitch.1 b/bin/man1/glitch.1
new file mode 100644
index 00000000..6562c4dc
--- /dev/null
+++ b/bin/man1/glitch.1
@@ -0,0 +1,77 @@
+.Dd September 7, 2018
+.Dt GLITCH 1
+.Os
+.
+.Sh NAME
+.Nm glitch
+.Nd PNG glitcher
+.
+.Sh SYNOPSIS
+.Nm
+.Op Fl cfimprxy
+.Op Fl a Ar filters
+.Op Fl d Ar filters
+.Op Fl o Ar file
+.Op Ar
+.
+.Sh DESCRIPTION
+.Nm
+misinterprets PNG files
+according to the options given
+to create natural glitch effects.
+.
+.Pp
+The arguments are as follows:
+.Bl -tag -width Ds
+.It Fl a Ar filters
+Apply a pattern of comma-separated filters.
+Filters are
+.Cm none ,
+.Cm sub ,
+.Cm up ,
+.Cm average ,
+.Cm paeth .
+.
+.It Fl c
+Write to standard output.
+.
+.It Fl d Ar filters
+Declare a pattern of comma-separated filters.
+See
+.Fl a
+for list of filters.
+.
+.It Fl f
+Apply filtering in place of reconstruction.
+.
+.It Fl i
+Invert image data after filtering.
+.
+.It Fl m
+Mirror scanlines after filtering.
+.
+.It Fl o Ar file
+Write to
+.Ar file .
+.
+.It Fl p
+Use a broken Paeth predictor function.
+.
+.It Fl r
+Apply reconstruction in place of filtering.
+.
+.It Fl x
+Zero first pixel of each scanline after filtering.
+.
+.It Fl y
+Zero first scanline after filtering.
+.El
+.
+.Sh EXAMPLES
+.Dl glitch -m -a sub -d sub
+.
+.Sh SEE ALSO
+.Xr pngo 1
+.
+.Sh BUGS
+More wanted.
diff --git a/bin/man1/hilex.1 b/bin/man1/hilex.1
new file mode 100644
index 00000000..80b3155b
--- /dev/null
+++ b/bin/man1/hilex.1
@@ -0,0 +1,218 @@
+.Dd January 20, 2021
+.Dt HILEX 1
+.Os
+.
+.Sh NAME
+.Nm hilex
+.Nd syntax highlighter
+.
+.Sh SYNOPSIS
+.Nm
+.Op Fl t
+.Op Fl f Ar format
+.Op Fl l Ar lexer
+.Op Fl n Ar name
+.Op Fl o Ar opts
+.Op Ar file
+.
+.Sh DESCRIPTION
+The
+.Nm
+utility
+syntax highlights
+the contents of
+.Ar file
+or standard input
+and formats it on standard output.
+.
+.Pp
+The arguments are as follows:
+.Bl -tag -width "-f format"
+.It Fl f Ar format
+Set the output format.
+See
+.Sx Output Formats .
+The default format is
+.Cm ansi .
+.
+.It Fl l Ar lexer
+Set the input lexer.
+See
+.Sx Input Lexers .
+The default input lexer is inferred from
+.Ar name
+or the first line of input.
+.
+.It Fl n Ar name
+Set the name used to infer the input lexer.
+The default is the final component of
+.Ar file .
+.
+.It Fl o Ar opts
+Set output format options.
+.Ar opts
+is a comma-separated list of options.
+Options for each output format are documented in
+.Sx Output Formats .
+.
+.It Fl t
+Default to the
+.Cm text
+input lexer if one cannot be inferred.
+.El
+.
+.Ss Output Formats
+.Bl -tag -width Ds
+.It Cm ansi
+Output ANSI terminal control sequences.
+If standard output is a terminal
+and standard input is not being read,
+output is piped to
+.Ev PAGER
+with
+.Ev LESS=FRX
+if it is not already set.
+.
+.It Cm html
+Output HTML
+.Sy span
+elements
+with the following classes:
+.Pp
+.Bl -hang -width "\&Op" -compact
+.It Sy \&Op
+operators
+.It Sy \&Nu
+numbers
+.It Sy \&Ke
+keywords
+.It Sy \&Id
+identifiers
+.It Sy \&Ma
+macros
+.It Sy \&Co
+comments
+.It Sy \&St
+strings
+.It Sy \&Es
+character escapes
+.It Sy \&Fo
+format strings
+.It Sy \&Su
+variable substitutions
+.El
+.Pp
+The options are as follows:
+.Bl -tag -width "title=..."
+.It Cm document
+Output an HTML document containing a
+.Sy pre
+element.
+.It Cm inline
+Output inline style attributes
+rather than classes.
+.It Cm pre
+Wrap the output in a
+.Sy pre
+element with the class
+.Sy hilex .
+.It Cm style Ns = Ns Ar url
+With
+.Cm document ,
+use the external stylesheet
+.Ar url .
+If unset,
+default styles are included in a
+.Sy style
+element.
+.It Cm tab Ns = Ns Ar n
+With
+.Cm document ,
+.Cm inline
+or
+.Cm pre ,
+set the
+.Sy tab-size
+property to
+.Ar n .
+.It Cm title Ns = Ns Ar ...
+With
+.Cm document ,
+set the
+.Sy title
+element text.
+The default title is the same as
+.Ar name .
+.El
+.
+.It Cm irc
+Output IRC formatting codes.
+The options are as follows:
+.Bl -tag -width "monospace"
+.It Cm monospace
+Use the IRCCloud monospace formatting code.
+.El
+.El
+.
+.Ss Input Lexers
+.Bl -tag -width Ds
+.It Cm c
+The C11 language,
+with minimal support for
+.Xr lex 1 ,
+.Xr yacc 1
+and Objective-C input.
+Inferred for
+.Pa *.[chlmy]
+files.
+.
+.It Cm make
+BSD
+.Xr make 1 .
+Inferred for
+.Pa Makefile ,
+.Pa *.mk
+and
+.Pa *.am
+files.
+.
+.It Cm mdoc
+The
+.Xr mdoc 7
+language.
+Inferred for
+.Pa *.[1-9]
+files
+and files starting with
+.Dq .Dd .
+.
+.It Cm sh
+POSIX
+.Xr sh 1 .
+Since lexical analysis of
+the shell command language
+is effectively impossible,
+this is best-effort only.
+Inferred for
+.Pa *.sh ,
+.Pa .profile ,
+.Pa .shrc
+files
+and files starting with
+.Dq #!/bin/sh .
+.
+.It Cm text
+Plain text.
+Inferred for
+.Pa *.txt
+files.
+.El
+.
+.Sh ENVIRONMENT
+.Bl -tag -width "PAGER"
+.It Ev PAGER
+The command to pipe ANSI output to
+if standard output is a terminal.
+The default is
+.Ev PAGER=less .
+.El
diff --git a/bin/man1/htagml.1 b/bin/man1/htagml.1
new file mode 100644
index 00000000..97e8f3f2
--- /dev/null
+++ b/bin/man1/htagml.1
@@ -0,0 +1,69 @@
+.Dd January 12, 2021
+.Dt HTAGML 1
+.Os
+.
+.Sh NAME
+.Nm htagml
+.Nd format tagged file as HTML
+.
+.Sh SYNOPSIS
+.Nm
+.Op Fl ip | x
+.Op Fl f Ar tagsfile
+.Ar file
+.
+.Sh DESCRIPTION
+The
+.Nm
+utility formats a file tagged with
+.Xr ctags 1
+as HTML.
+Tags are output as fragment hyperlinks
+with the class
+.Qq tag .
+.
+.Pp
+The arguments are as follows:
+.Bl -tag -width Ds
+.It Fl f Ar tagsfile
+Read the tag descriptions from a file called
+.Ar tagsfile .
+The default behavior is
+to read them from a file called
+.Pa tags .
+.It Fl i
+Assume
+.Ar file
+has been pre-formatted
+on standard input,
+such as by a syntax highlighter.
+Only tag hyperlinks are added.
+.It Fl p
+Wrap the output in a
+.Sy pre
+element.
+.It Fl x
+Instead produce an index of tags
+ordered by their occurrence in
+.Ar file .
+The index is formatted as a
+.Sy ul
+element with the class
+.Qq index .
+.El
+.
+.Sh FILES
+.Bl -tag -width Ds
+.It Pa tags
+default input tags file
+.El
+.
+.Sh EXAMPLES
+.Bd -literal -offset indent
+ctags htagml.c && htagml htagml.c
+hilex -f html htagml.c | htagml -i htagml.c
+.Ed
+.
+.Sh SEE ALSO
+.Xr ctags 1 ,
+.Xr hilex 1
diff --git a/bin/man1/modem.1 b/bin/man1/modem.1
new file mode 100644
index 00000000..a4bbc3f1
--- /dev/null
+++ b/bin/man1/modem.1
@@ -0,0 +1,31 @@
+.Dd December  8, 2020
+.Dt MODEM 1
+.Os
+.
+.Sh NAME
+.Nm modem
+.Nd fixed baud rate wrapper
+.
+.Sh SYNOPSIS
+.Nm
+.Op Fl r Ar rate
+.Ar command ...
+.
+.Sh DESCRIPTION
+.Nm
+runs the
+.Ar command
+in a new PTY
+with a fixed baud rate.
+.
+.Pp
+The arguments are as follows:
+.Bl -tag -width Ds
+.It Fl r Ar rate
+Set the baud rate.
+The default is 19200.
+.El
+.
+.Sh BUGS
+Window size changes are not propagated
+to the child PTY.
diff --git a/bin/man1/mtags.1 b/bin/man1/mtags.1
new file mode 100644
index 00000000..57856ba0
--- /dev/null
+++ b/bin/man1/mtags.1
@@ -0,0 +1,76 @@
+.Dd January 20, 2021
+.Dt MTAGS 1
+.Os
+.
+.Sh NAME
+.Nm mtags
+.Nd miscellaneous tags
+.
+.Sh SYNOPSIS
+.Nm
+.Op Fl a
+.Op Fl f Ar tagsfile
+.Ar
+.
+.Sh DESCRIPTION
+The
+.Nm
+utility
+makes a
+.Pa tags
+file for
+.Xr ex 1
+from the specified
+.Xr make 1 ,
+.Xr mdoc 7
+.Xr sh 1
+sources.
+.
+.Pp
+The arguments are as follows:
+.Bl -tag -width Ds
+.It Fl a
+Append to
+.Pa tags
+file.
+.It Fl f Ar tagsfile
+Place the tag descriptions
+in a file called
+.Ar tagsfile .
+The default behaviour is
+to place them in a file called
+.Pa tags .
+.El
+.
+.Pp
+Files whose names are
+.Pa Makefile
+or end in
+.Pa .mk
+are assumed to be
+.Xr make 1
+files.
+Files whose names end in
+.Pa .[1-9]
+are assumed to be
+.Xr mdoc 7
+files.
+Files whose names are
+.Pa .profile ,
+.Pa .shrc
+or end in
+.Pa .sh
+are assumed to be
+.Xr sh 1
+files.
+.
+.Sh FILES
+.Bl -tag -width Ds
+.It Pa tags
+default output tags file
+.El
+.
+.Sh SEE ALSO
+.Xr ctags 1 ,
+.Xr ex 1 ,
+.Xr vi 1
diff --git a/bin/man1/nudge.1 b/bin/man1/nudge.1
new file mode 100644
index 00000000..3ca4294a
--- /dev/null
+++ b/bin/man1/nudge.1
@@ -0,0 +1,44 @@
+.Dd September  4, 2020
+.Dt NUDGE 1
+.Os
+.
+.Sh NAME
+.Nm nudge
+.Nd terminal vibrator
+.
+.Sh SYNOPSIS
+.Nm
+.Op Fl f Ar file
+.Op Fl n Ar count
+.Op Fl s Ar shake
+.Op Fl t Ar delay
+.
+.Sh DESCRIPTION
+The
+.Nm
+utility
+nudges the terminal.
+An
+.Xr xterm 1
+compatible terminal is required.
+.
+.Pp
+The arguments are as follows:
+.Bl -tag -width Ds
+.It Fl f Ar file
+Open the terminal named by
+.Ar file .
+The default is
+.Pa /dev/tty .
+.It Fl n Ar count
+Set the number of times
+to nudge the terminal.
+The default is 2.
+.It Fl s Ar shake
+Set the shake intensity in pixels.
+The default is 10.
+.It Fl t Ar delay
+Set the interval between shakes
+in milliseconds.
+The default is 20.
+.El
diff --git a/bin/man1/order.1 b/bin/man1/order.1
new file mode 100644
index 00000000..89fcbda5
--- /dev/null
+++ b/bin/man1/order.1
@@ -0,0 +1,38 @@
+.Dd July 18, 2020
+.Dt ORDER 1
+.Os
+.
+.Sh NAME
+.Nm order
+.Nd operator precedence
+.
+.Sh SYNOPSIS
+.Nm
+.Op Ar expr ...
+.
+.Sh DESCRIPTION
+.Nm
+parses C expressions
+and prints them with parentheses
+according to the precedence rules in
+.Xr operator 7 .
+If no
+.Ar expr
+are given,
+an expression is read
+from standard input.
+.
+.Sh EXAMPLES
+.Bd -literal
+$ order 'a & b << 1'
+(a & (b << 1))
+.Ed
+.
+.Sh SEE ALSO
+.Xr operator 7
+.
+.Sh CAVEATS
+.Nm
+does not support the
+.Sy (type)
+operator.
diff --git a/bin/man1/pbd.1 b/bin/man1/pbd.1
new file mode 100644
index 00000000..f0665891
--- /dev/null
+++ b/bin/man1/pbd.1
@@ -0,0 +1,66 @@
+.Dd February  9, 2021
+.Dt PBD 1
+.Os
+.
+.Sh NAME
+.Nm pbd
+.Nd macOS pasteboard daemon
+.
+.Sh SYNOPSIS
+.Nm Op Fl s | c | p | o Ar url
+.
+.Sh DESCRIPTION
+.Nm
+is a daemon which pipes into macOS
+.Xr pbcopy 1 ,
+from
+.Xr pbpaste 1
+and invokes
+.Xr open 1
+in response to messages
+sent over TCP port 7062.
+.
+.Pp
+The socket can be forwarded through
+.Xr ssh 1
+and the flags can be used remotely
+to access the local pasteboard
+and open URLs.
+.
+.Pp
+Forwarding can be configured with:
+.Pp
+.Dl RemoteForward 7062 127.0.0.1:7062
+.
+.Pp
+The arguments are as follows:
+.Bl -tag -width Ds
+.It Fl c
+Behave as
+.Xr pbcopy 1 .
+.It Fl o Ar url
+Behave as
+.Xr open 1 .
+.It Fl p
+Behave as
+.Xr pbpaste 1 .
+.It Fl s
+Run the server.
+This is the default.
+.El
+.Pp
+ACAB.
+.
+.Sh EXAMPLES
+.Bd -literal -offset indent
+pbd &
+ssh -R 7062:127.0.0.1:7062 tux.local
+pbd -p
+.Ed
+.
+.Sh SEE ALSO
+.Xr open 1 ,
+.Xr pbcopy 1 ,
+.Xr pbpaste 1 ,
+.Xr ssh 1 ,
+.Xr ssh_config 5
diff --git a/bin/man1/pngo.1 b/bin/man1/pngo.1
new file mode 100644
index 00000000..cec13160
--- /dev/null
+++ b/bin/man1/pngo.1
@@ -0,0 +1,56 @@
+.Dd September 17, 2018
+.Dt PNGO 1
+.Os
+.
+.Sh NAME
+.Nm pngo
+.Nd PNG optimizer
+.
+.Sh SYNOPSIS
+.Nm
+.Op Fl cv
+.Op Fl o Ar file
+.Op Ar
+.
+.Sh DESCRIPTION
+.Nm
+optimizes PNG files for size.
+.
+.Pp
+The arguments are as follows:
+.Bl -tag -width Ds
+.It Fl c
+Write to standard output.
+.It Fl o Ar file
+Write to
+.Ar file .
+.It Fl v
+Output PNG header information.
+.El
+.
+.Pp
+.Nm
+performs the following optimizations:
+.Bl -bullet
+.It
+Discard ancillary chunks.
+.It
+Discard unnecessary alpha channel.
+.It
+Convert unnecessary truecolor to grayscale.
+.It
+Palletize color and alpha if possible.
+.It
+Reduce bit depth if possible.
+.It
+Apply a simple filter heuristic.
+.It
+Apply zlib's best compresion.
+.El
+.
+.Sh SEE ALSO
+.Xr glitch 1
+.
+.Sh CAVEATS
+.Nm
+does not support interlaced PNGs.
diff --git a/bin/man1/psf2png.1 b/bin/man1/psf2png.1
new file mode 100644
index 00000000..db74c6e2
--- /dev/null
+++ b/bin/man1/psf2png.1
@@ -0,0 +1,53 @@
+.Dd September 28, 2018
+.Dt PSF2PNG 1
+.Os
+.
+.Sh NAME
+.Nm psf2png
+.Nd PSF2 to PNG renderer
+.
+.Sh SYNOPSIS
+.Nm
+.Op Fl b Ar bg
+.Op Fl c Ar cols
+.Op Fl f Ar fg
+.Op Fl s Ar str
+.Op Ar file
+.
+.Sh DESCRIPTION
+.Nm
+renders the PSF2 font
+.Ar file
+or standard input
+to PNG
+on standard output.
+.
+.Pp
+The arguments are as follows:
+.Bl -tag -width Ds
+.It Fl b Ar bg
+Use
+.Ar bg
+(hexadecimal RGB)
+as background color.
+The default background color is black.
+.It Fl c Ar cols
+Arrange glyphs in
+.Ar cols
+columns.
+The default number of columns is 32.
+.It Fl f Ar fg
+Use
+.Ar fg
+(hexadecimal RGB)
+as foreground color.
+The default foreground color is white.
+.It Fl s Ar str
+Render glyphs for string
+.Ar str
+rather than all glyphs.
+.El
+.
+.Sh SEE ALSO
+.Xr pngo 1 ,
+.Xr psfed 1
diff --git a/bin/man1/psfed.1 b/bin/man1/psfed.1
new file mode 100644
index 00000000..3fbc4710
--- /dev/null
+++ b/bin/man1/psfed.1
@@ -0,0 +1,166 @@
+.Dd January 14, 2019
+.Dt PSFED 1
+.Os
+.
+.Sh NAME
+.Nm psfed
+.Nd PSF2 font editor
+.
+.Sh SYNOPSIS
+.Nm
+.Op Fl H Ar height
+.Op Fl g Ar glyphs
+.Op Fl h Ar height
+.Op Fl w Ar width
+.Ar file
+.
+.Sh DESCRIPTION
+.Nm
+is a PSF2 font editor
+for the Linux framebuffer.
+.
+.Pp
+The arguments are as follows:
+.
+.Bl -tag -width Ds
+.It Fl H Ar height
+Modify the height of an existing font.
+Only increasing the height is allowed.
+.
+.It Fl g Ar glyphs
+Set the number of glyphs in a new font.
+The default number of glyphs is 256.
+.
+.It Fl h Ar height
+Set the height of a new font.
+The default height is 16.
+.
+.It Fl w Ar width
+Set the width of a new font.
+The default width is 8.
+.El
+.
+.Ss Normal Mode
+In normal mode,
+each glyph is displayed in a grid.
+.
+.Pp
+.Bl -tag -width Ds -compact
+.It Ic q
+Quit.
+.Nm
+will ask for confirmation
+if the font has been modified
+since the last write.
+.
+.It Ic w
+Write font to
+.Ar file .
+.
+.It Ic - Ic +
+Adjust display scale.
+.
+.It Ic h Ic l
+Select previous/next glyph.
+.
+.It Ic k Ic j
+Select glyph in previous/next row.
+.
+.It Ic f
+Select glyph of next input character.
+.
+.It Ic '
+Return to previously selected glyph.
+.
+.It Ic y
+Copy selected glyph.
+.
+.It Ic e
+Edit selected glyph in
+.Sx Edit Mode .
+.
+.It Ic i
+Enter
+.Sx Preview Mode .
+.El
+.
+.Ss Edit Mode
+In edit mode,
+the selected glyph is displayed for editing
+surrounded by a checked border.
+The glyph is also displayed unscaled
+in the bottom-right corner.
+.
+.Pp
+.Bl -tag -width Ds -compact
+.It Ic ESC
+Return to
+.Sx Normal Mode .
+.
+.It Ic - Ic +
+Adjust display scale.
+.
+.It Ic g Ic G
+Toggle guide on selected column/row.
+.
+.It Ic h Ic l
+Select previous/next bit in row.
+.
+.It Ic k Ic j
+Select previous/next bit in column.
+.
+.It Ic SPACE
+Flip selected bit.
+.
+.It Ic r
+Invert glyph.
+.
+.It Ic H Ic L
+Move glyph left/right.
+.
+.It Ic K Ic J
+Move glyph up/down.
+.
+.It Ic p
+Paste the copied glyph.
+.
+.It Ic u
+Revert glyph to initial state.
+.El
+.
+.Ss Preview Mode
+In preview mode,
+arbitrary text may be entered
+for preview.
+Press
+.Ic ESC
+to return to
+.Sx Normal Mode .
+.
+.Sh ENVIRONMENT
+.Bl -tag -width FRAMEBUFFER
+.It Ev FRAMEBUFFER
+The framebuffer device path.
+The default path is
+.Pa /dev/fb0 .
+.El
+.
+.Sh SEE ALSO
+.Xr psfaddtable 1 ,
+.Xr psfgettable 1 ,
+.Xr psfstriptable 1 ,
+.Xr setfont 8
+.
+.Sh CAVEATS
+.Nm
+does not support Unicode tables.
+Use
+.Xr psfaddtable 1
+to add Unicode tables
+to fonts created by
+.Nm .
+.
+.Sh BUGS
+.Nm
+makes no attempt to convert header fields
+to and from little-endian format.
diff --git a/bin/man1/ptee.1 b/bin/man1/ptee.1
new file mode 100644
index 00000000..04f9cdac
--- /dev/null
+++ b/bin/man1/ptee.1
@@ -0,0 +1,40 @@
+.Dd July 17, 2019
+.Dt PTEE 1
+.Os
+.
+.Sh NAME
+.Nm ptee
+.Nd tee for PTYs
+.
+.Sh SYNOPSIS
+.Nm
+.Ar command ...
+.Cm >
+.Ar file
+.
+.Sh DESCRIPTION
+.Nm
+runs
+.Ar command
+in a new PTY
+which is mirrored to
+the current PTY
+and standard output.
+Standard output must be redirected
+to a file or pipe.
+.
+.Pp
+Type
+.Ic ^S
+to toggle writing to standard output.
+Type
+.Ic ^Q
+to write the media copy sequence for
+.Xr shotty 1 .
+.
+.Sh SEE ALSO
+.Xr tee 1
+.
+.Sh BUGS
+Window size changes are not propagated
+to the child PTY.
diff --git a/bin/man1/relay.1 b/bin/man1/relay.1
new file mode 100644
index 00000000..402c4726
--- /dev/null
+++ b/bin/man1/relay.1
@@ -0,0 +1,48 @@
+.Dd April 28, 2019
+.Dt RELAY 1
+.Os
+.
+.Sh NAME
+.Nm relay
+.Nd IRC relay bot
+.
+.Sh SYNOPSIS
+.Nm
+.Ar host
+.Ar port
+.Ar nick
+.Ar chan
+.
+.Sh DESCRIPTION
+.Nm
+is one half of an IRC relay pair.
+It connects to
+.Ar host Ns : Ns Ar port
+over TLS
+as
+.Ar nick
+and joins
+.Ar chan .
+.
+.Pp
+.Nm
+outputs messages from
+.Ar chan
+to standard output
+and sends messages to
+.Ar chan
+from standard input.
+Two
+.Nm
+processes can be connected with
+.Xr mkfifo 1 .
+.
+.Sh EXAMPLES
+.Bd -literal -offset indent
+mkfifo a b
+relay a.example.com 6697 relay '#example' <>a >b
+relay b.example.com 6697 relay '#example' <>b >a
+.Ed
+.
+.Sh SEE ALSO
+.Xr mkfifo 1
diff --git a/bin/man1/scheme.1 b/bin/man1/scheme.1
new file mode 100644
index 00000000..9f72d945
--- /dev/null
+++ b/bin/man1/scheme.1
@@ -0,0 +1,59 @@
+.Dd February  6, 2021
+.Dt SCHEME 1
+.Os
+.
+.Sh NAME
+.Nm scheme
+.Nd color scheme
+.
+.Sh SYNOPSIS
+.Nm
+.Op Fl Xacghilmstx
+.Op Fl p Ar n
+.
+.Sh DESCRIPTION
+.Nm
+generates a color scheme
+and outputs it in a number of formats.
+.
+.Pp
+The arguments are as follows:
+.Bl -tag -width Ds
+.It Fl X
+Output Xresources for
+.Xr xterm 1 .
+.It Fl a
+Generate the 16 ANSI colors.
+This is the default.
+.It Fl c
+Output a C enum.
+.It Fl g
+Output a swatch PNG.
+.It Fl h
+Output floating point HSV.
+.It Fl i
+Swap black and white.
+.It Fl l
+Output Linux console OSC sequences.
+.It Fl m
+Output a
+.Xr mintty 1
+theme.
+Use with
+.Fl t .
+.It Fl p Ar n
+Generate only the color
+.Ar n .
+.It Fl s
+Output CSS
+for classes named
+.Sy fg Ns Ar n
+and
+.Sy bg Ns Ar n .
+.It Fl t
+Generate the 16 ANSI colors as well as
+background, foreground, bold, selection and cursor colors.
+.It Fl x
+Output hexadecimal RGB.
+This is the default.
+.El
diff --git a/bin/man1/shotty.1 b/bin/man1/shotty.1
new file mode 100644
index 00000000..d5eaa780
--- /dev/null
+++ b/bin/man1/shotty.1
@@ -0,0 +1,92 @@
+.Dd November 25, 2019
+.Dt SHOTTY 1
+.Os
+.
+.Sh NAME
+.Nm shotty
+.Nd terminal capture
+.
+.Sh SYNOPSIS
+.Nm
+.Op Fl Bdns
+.Op Fl b Ar bg
+.Op Fl f Ar fg
+.Op Fl h Ar rows
+.Op Fl w Ar cols
+.Op Ar file
+.
+.Sh DESCRIPTION
+.Nm
+interprets terminal output from
+.Ar file
+or standard input
+and produces HTML
+.Sy <pre>
+on standard output.
+.
+.Pp
+Terminal output
+can be captured with
+.Xr ptee 1 .
+.Nm
+targets compatibility with
+.Ev TERM Ns = Ns Cm xterm
+and
+.Ev TERM Ns = Ns Cm xterm-256color
+as used by
+.Xr ncurses 3 .
+A snapshot of the terminal
+is output each time
+a media copy sequence occurs,
+or once at the end of the capture.
+.
+.Pp
+HTML output uses the classes
+.Sy bg Ns Va n
+and
+.Sy fg Ns Va n ,
+and inline styles for
+bold, italic and underline.
+CSS for colors can be generated with
+.Xr scheme 1 .
+.
+.Pp
+The arguments are as follows:
+.Bl -tag -width "-w cols"
+.It Fl B
+Replace bold with bright colors.
+.
+.It Fl b Ar bg
+Set the default background color.
+The default value is 0 (black).
+.
+.It Fl d
+Output the terminal state
+following each control sequence.
+.
+.It Fl f Ar fg
+Set the default foreground color.
+The default value is 7 (white).
+.
+.It Fl h Ar rows
+Set the terminal height.
+The default value is 24.
+.
+.It Fl n
+Do not show the cursor.
+.
+.It Fl s
+Set the terminal size
+from the current terminal size.
+.
+.It Fl w Ar cols
+Set the terminal width.
+The default value is 80.
+.El
+.
+.Sh EXAMPLES
+.Dl ptee htop | shotty -s > htop.html
+.
+.Sh SEE ALSO
+.Xr ptee 1 ,
+.Xr scheme 1
diff --git a/bin/man1/sup.1 b/bin/man1/sup.1
new file mode 100644
index 00000000..4b266e06
--- /dev/null
+++ b/bin/man1/sup.1
@@ -0,0 +1,48 @@
+.Dd February 21, 2021
+.Dt SUP 1
+.Os
+.
+.Sh NAME
+.Nm sup
+.Nd single-use password
+.
+.Sh SYNOPSIS
+.Nm
+.Ar service
+.Op Ar email
+.
+.Sh DESCRIPTION
+The
+.Nm
+utility
+sets a random single-use password
+for a service using the
+.Dq forgot password
+or
+.Dq password reset
+flow.
+The password is copied to the clipboard
+and the service login page is opened.
+For passwordless services
+with email-based authentication,
+the emailed login link is opened.
+.
+.Pp
+The following services are supported:
+.Cm asciinema ,
+.Cm discogs ,
+.Cm freebsdbugzilla ,
+.Cm liberapay ,
+.Cm lobsters ,
+.Cm tildenews .
+.
+.Pp
+The
+.Nm
+utility requires
+.Xr curl 1 ,
+.Xr git-fetch-email 1 ,
+.Xr openssl 1 ,
+.Xr pbcopy 1
+and
+.Xr open 1 .
diff --git a/bin/man1/title.1 b/bin/man1/title.1
new file mode 100644
index 00000000..43ecc5e2
--- /dev/null
+++ b/bin/man1/title.1
@@ -0,0 +1,51 @@
+.Dd September 10, 2019
+.Dt TITLE 1
+.Os
+.
+.Sh NAME
+.Nm title
+.Nd page titles
+.
+.Sh SYNOPSIS
+.Nm
+.Op Fl v
+.Op Fl x Ar pattern
+.Op Ar url
+.
+.Sh DESCRIPTION
+.Nm
+fetches HTML page titles
+over HTTP and HTTPS.
+.Nm
+scans standard input for URLs
+and writes their titles to standard output.
+If a
+.Ar url
+argument is given,
+.Nm
+exits after fetching its title.
+.
+.Pp
+The arguments are as follows:
+.Bl -tag -width Ds
+.It Fl x Ar pattern
+Exclude URLs matching
+.Ar pattern ,
+which is a modern regular expression.
+See
+.Xr re_format 7 .
+.It Fl v
+Enable
+.Xr libcurl 3
+verbose output.
+.El
+.
+.Sh EXAMPLES
+.Bd -literal -offset indent
+mkfifo snarf titles
+relay irc.example.org 6697 snarf '#example' <>titles >snarf
+title <snarf >titles
+.Ed
+.
+.Sh SEE ALSO
+.Xr relay 1
diff --git a/bin/man1/typer.1 b/bin/man1/typer.1
new file mode 100644
index 00000000..dd1108d1
--- /dev/null
+++ b/bin/man1/typer.1
@@ -0,0 +1,74 @@
+.Dd April 28, 2021
+.Dt TYPER 1
+.Os
+.
+.Sh NAME
+.Nm typer
+.Nd type all day
+.
+.Sh SYNOPSIS
+.Nm
+.Op Fl CPRv
+.Op Fl c Ar cert
+.Op Fl n Ar nick
+.Op Fl p Ar port
+.Op Fl u Ar user
+.Ar host
+.Ar chan
+.
+.Sh DESCRIPTION
+.Nm
+is an IRC bot
+that types all day long.
+The arguments are as follows:
+.Bl -tag -width Ds
+.It Fl C
+Copy
+.Nm .
+Type whenever anyone else is typing.
+.It Fl P
+Request the
+.Sy causal.agency/passive
+vendor-specific capability.
+.It Fl R
+Reverse
+.Nm .
+Send other users' typing indicators
+as regular messages for all to see.
+.It Fl c Ar cert
+Use the TLS client certificate
+and private key loaded from
+.Ar cert .
+.It Fl n Ar nick
+Set the nickname.
+The default is
+.Nm .
+.It Fl p Ar port
+Connect to
+.Ar port .
+The default is 6697.
+.It Fl u Ar user
+Set the username.
+The default is
+.Nm .
+.It Fl v
+Log IRC protocol to standard error.
+.It Ar host
+Connect to
+.Ar host .
+.It Ar chan
+Type in the channel
+.Ar chan .
+.El
+.
+.Sh STANDARDS
+.Bl -item
+.It
+.Rs
+.%A MuffinMedic
+.%A James Wheare
+.%T IRCv3 typing client tag
+.%I IRCv3 Working Group
+.%U https://ircv3.net/specs/client-tags/typing
+.Re
+.El
diff --git a/bin/man1/up.1 b/bin/man1/up.1
new file mode 100644
index 00000000..189020de
--- /dev/null
+++ b/bin/man1/up.1
@@ -0,0 +1,80 @@
+.Dd February  7, 2021
+.Dt UP 1
+.Os
+.
+.Sh NAME
+.Nm up
+.Nd upload file
+.
+.Sh SYNOPSIS
+.Nm
+.Op Fl h
+.Op Ar file
+.
+.Nm
+.Fl c | t
+.Ar command ...
+.
+.Nm
+.Fl s
+.
+.Sh DESCRIPTION
+.Nm
+uploads a file
+to temp.causal.agency with
+.Xr scp 1 .
+If no
+.Ar file
+is provided,
+standard input is read
+and uploaded as text.
+.
+.Pp
+The destination file name
+is chosen using
+.Xr date 1
+and
+.Xr openssl 1
+.Cm rand .
+The URL of the uploaded file is printed
+and copied to the pasteboard with
+.Xr pbcopy 1
+if available.
+.
+.Pp
+The arguments are as follows:
+.Bl -tag -width Ds
+.It Fl c
+Run a command
+to produce a text file for upload.
+.It Fl h
+Use
+.Xr hilex 1
+to produce an HTML file for upload.
+.It Fl s
+Use
+.Xr screencapture 1
+or
+.Xr scrot 1
+to produce a PNG file for upload.
+The file is optimized by
+.Xr pngo 1
+if available.
+.It Fl t
+Run a command with
+.Xr ptee 1
+and
+.Xr shotty 1
+to produce an HTML file for upload.
+.El
+.
+.Pp
+Any arguments after
+.Ql \-\-
+are passed to
+.Xr hilex 1
+and
+.Xr screencapture 1
+or
+.Xr scrot 1 ,
+respectively.
diff --git a/bin/man1/when.1 b/bin/man1/when.1
new file mode 100644
index 00000000..0b473573
--- /dev/null
+++ b/bin/man1/when.1
@@ -0,0 +1,76 @@
+.Dd July 24, 2019
+.Dt WHEN 1
+.Os
+.
+.Sh NAME
+.Nm when
+.Nd date calculator
+.
+.Sh SYNOPSIS
+.Nm
+.Op Ar expr
+.
+.Sh DESCRIPTION
+.Nm
+is a date calculator.
+If no
+.Ar expr
+is given,
+expressions are read
+from standard input.
+.
+.Pp
+The grammar is as follows:
+.Bl -tag -width Ds
+.It Sy \&.
+Today's date.
+.
+.It Ar month Ar date Op Ar year
+A full date,
+or a date in the current year.
+.Ar month
+must be at least three letters.
+.
+.It Ar day
+A day of the week
+in the current week.
+.Ar day
+must be at least three letters.
+.
+.It Sy < Ar date
+The date one week before.
+.
+.It Sy > Ar date
+The date one week after.
+.
+.It Ar date Sy + Ar interval
+The date after some interval.
+.
+.It Ar date Sy - Ar interval
+The date before some interval.
+.
+.It Ar date Sy - Ar date
+The interval between two dates.
+.
+.It Ar num Sy d
+A number of days.
+.
+.It Ar num Sy w
+A number of weeks.
+.
+.It Ar num Sy m
+A number of months.
+.
+.It Ar num Sy y
+A number of years.
+.El
+.
+.Sh EXAMPLES
+.Bl -tag -width "Dec 25 - ."
+.It Ic Dec 25 - \&.
+How long until Christmas.
+.It Ic >Fri
+The date next Friday.
+.It Ic \&. + 2w
+Your last day at work.
+.El
diff --git a/bin/man1/xx.1 b/bin/man1/xx.1
new file mode 100644
index 00000000..d38789a7
--- /dev/null
+++ b/bin/man1/xx.1
@@ -0,0 +1,68 @@
+.Dd September 7, 2018
+.Dt XX 1
+.Os
+.
+.Sh NAME
+.Nm xx
+.Nd hexdump
+.
+.Sh SYNOPSIS
+.Nm
+.Op Fl arsz
+.Op Fl c Ar cols
+.Op Fl g Ar group
+.Op Fl p Ar count
+.Op Ar file
+.
+.Sh DESCRIPTION
+.Nm
+dumps the contents of a
+.Ar file
+or standard input
+in hexadecimal format.
+.
+.Pp
+The arguments are as follows:
+.Bl -tag -width Ds
+.It Fl a
+Toggle ASCII output.
+.
+.It Fl c Ar cols
+Output
+.Ar cols
+bytes per line.
+The default
+.Ar cols
+is 16.
+.
+.It Fl g Ar group
+Output extra space after every
+.Ar group
+bytes.
+The default
+.Ar group
+is 8.
+.
+.It Fl p Ar count
+Output a blank line after every
+.Ar count
+bytes.
+.Ar count
+must be a multiple of
+.Ar cols .
+.
+.It Fl r
+Reverse hexdump.
+Read hexadecimal input
+and write byte output.
+.
+.It Fl s
+Toggle offset output.
+.
+.It Fl z
+Skip output of lines containing only zeros.
+.El
+.
+.Sh SEE ALSO
+.Xr hexdump 1 ,
+.Xr xxd 1