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diff --git a/bin/dash/src/bltin/test.1 b/bin/dash/src/bltin/test.1 new file mode 100644 index 00000000..42435fb3 --- /dev/null +++ b/bin/dash/src/bltin/test.1 @@ -0,0 +1,309 @@ +.\" Copyright (c) 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" Copyright (c) 1997-2005 +.\" Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" the Institute of Electrical and Electronics Engineers, Inc. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)test.1 8.1 (Berkeley) 5/31/93 +.\" +.Dd May 31, 1993 +.Dt TEST 1 +.Os +.Sh NAME +.Nm test , +.Nm \&[ +.Nd condition evaluation utility +.Sh SYNOPSIS +.Nm test +.Ar expression +.Nm \&[ +.Ar expression Cm ] +.Sh DESCRIPTION +The +.Nm test +utility evaluates the expression and, if it evaluates +to true, returns a zero (true) exit status; otherwise +it returns 1 (false). +If there is no expression, test also +returns 1 (false). +.Pp +All operators and flags are separate arguments to the +.Nm test +utility. +.Pp +The following primaries are used to construct expression: +.Bl -tag -width Ar +.It Fl b Ar file +True if +.Ar file +exists and is a block special +file. +.It Fl c Ar file +True if +.Ar file +exists and is a character +special file. +.It Fl d Ar file +True if +.Ar file +exists and is a directory. +.It Fl e Ar file +True if +.Ar file +exists (regardless of type). +.It Fl f Ar file +True if +.Ar file +exists and is a regular file. +.It Fl g Ar file +True if +.Ar file +exists and its set group ID flag +is set. +.It Fl h Ar file +True if +.Ar file +exists and is a symbolic link. +.It Fl k Ar file +True if +.Ar file +exists and its sticky bit is set. +.It Fl n Ar string +True if the length of +.Ar string +is nonzero. +.It Fl p Ar file +True if +.Ar file +is a named pipe +.Po Tn FIFO Pc . +.It Fl r Ar file +True if +.Ar file +exists and is readable. +.It Fl s Ar file +True if +.Ar file +exists and has a size greater +than zero. +.It Fl t Ar file_descriptor +True if the file whose file descriptor number +is +.Ar file_descriptor +is open and is associated with a terminal. +.It Fl u Ar file +True if +.Ar file +exists and its set user ID flag +is set. +.It Fl w Ar file +True if +.Ar file +exists and is writable. +True +indicates only that the write flag is on. +The file is not writable on a read-only file +system even if this test indicates true. +.It Fl x Ar file +True if +.Ar file +exists and is executable. +True +indicates only that the execute flag is on. +If +.Ar file +is a directory, true indicates that +.Ar file +can be searched. +.It Fl z Ar string +True if the length of +.Ar string +is zero. +.It Fl L Ar file +True if +.Ar file +exists and is a symbolic link. +This operator is retained for compatibility with previous versions of +this program. +Do not rely on its existence; use +.Fl h +instead. +.It Fl O Ar file +True if +.Ar file +exists and its owner matches the effective user id of this process. +.It Fl G Ar file +True if +.Ar file +exists and its group matches the effective group id of this process. +.It Fl S Ar file +True if +.Ar file +exists and is a socket. +.It Ar file1 Fl nt Ar file2 +True if +.Ar file1 +exists and is newer than +.Ar file2 . +.It Ar file1 Fl ot Ar file2 +True if +.Ar file1 +exists and is older than +.Ar file2 . +.It Ar file1 Fl ef Ar file2 +True if +.Ar file1 +and +.Ar file2 +exist and refer to the same file. +.It Ar string +True if +.Ar string +is not the null +string. +.It Ar \&s\&1 Cm \&= Ar \&s\&2 +True if the strings +.Ar \&s\&1 +and +.Ar \&s\&2 +are identical. +.It Ar \&s\&1 Cm \&!= Ar \&s\&2 +True if the strings +.Ar \&s\&1 +and +.Ar \&s\&2 +are not identical. +.It Ar \&s\&1 Cm \&\*[Lt] Ar \&s\&2 +True if string +.Ar \&s\&1 +comes before +.Ar \&s\&2 +based on the ASCII value of their characters. +.It Ar \&s\&1 Cm \&\*[Gt] Ar \&s\&2 +True if string +.Ar \&s\&1 +comes after +.Ar \&s\&2 +based on the ASCII value of their characters. +.It Ar \&n\&1 Fl \&eq Ar \&n\&2 +True if the integers +.Ar \&n\&1 +and +.Ar \&n\&2 +are algebraically +equal. +.It Ar \&n\&1 Fl \&ne Ar \&n\&2 +True if the integers +.Ar \&n\&1 +and +.Ar \&n\&2 +are not +algebraically equal. +.It Ar \&n\&1 Fl \> Ar \&n\&2 +True if the integer +.Ar \&n\&1 +is algebraically +greater than the integer +.Ar \&n\&2 . +.It Ar \&n\&1 Fl \&ge Ar \&n\&2 +True if the integer +.Ar \&n\&1 +is algebraically +greater than or equal to the integer +.Ar \&n\&2 . +.It Ar \&n\&1 Fl \< Ar \&n\&2 +True if the integer +.Ar \&n\&1 +is algebraically less +than the integer +.Ar \&n\&2 . +.It Ar \&n\&1 Fl \&le Ar \&n\&2 +True if the integer +.Ar \&n\&1 +is algebraically less +than or equal to the integer +.Ar \&n\&2 . +.El +.Pp +These primaries can be combined with the following operators: +.Bl -tag -width Ar +.It Cm \&! Ar expression +True if +.Ar expression +is false. +.It Ar expression1 Fl a Ar expression2 +True if both +.Ar expression1 +and +.Ar expression2 +are true. +.It Ar expression1 Fl o Ar expression2 +True if either +.Ar expression1 +or +.Ar expression2 +are true. +.It Cm \&( Ns Ar expression Ns Cm \&) +True if expression is true. +.El +.Pp +The +.Fl a +operator has higher precedence than the +.Fl o +operator. +.Sh GRAMMAR AMBIGUITY +The +.Nm test +grammar is inherently ambiguous. +In order to assure a degree of consistency, the cases described in +.St -p1003.2 +section 4.62.4, +are evaluated consistently according to the rules specified in the +standards document. +All other cases are subject to the ambiguity in the command semantics. +.Sh EXIT STATUS +The +.Nm test +utility exits with one of the following values: +.Bl -tag -width Ds +.It 0 +expression evaluated to true. +.It 1 +expression evaluated to false or expression was +missing. +.It \*[Gt]1 +An error occurred. +.El +.Sh STANDARDS +The +.Nm test +utility implements a superset of the +.St -p1003.2 +specification. |