test man page on NeXTSTEP

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TEST(1)								       TEST(1)

NAME
       test - condition command

SYNOPSIS
       test expr

DESCRIPTION
       test  evaluates	the  expression	 expr,	and  if its value is true then
       returns zero exit status; otherwise, a nonzero exit status is returned.
       test returns a nonzero exit if there are no arguments.

       The following primitives are used to construct expr.

       -r file	true if the file exists and is readable.

       -w file	true if the file exists and is writable.

       -f file	true if the file exists and is not a directory.

       -d file	true if the file exists and is a directory.

       -s file	true if the file exists and has a size greater than zero.

       -b file	true if the file exists and is a block special device.

       -c file	true if the file exists and is a character special device.

       -h file	true if the file exists and is a symbolic link.

       -g file	true if the file exists and has setgid bit set.

       -k file	true if the file exists and has sticky bit set.

       -u file	true if the file exists and has setuid bit set.

       -t [ fildes ]
		true  if  the open file whose file descriptor number is fildes
		(1 by default) is associated with a terminal device.

       -z s1	true if the length of the string s1 is zero.

       -n s1	true if the length of the string s1 is nonzero.

       s1 = s2	true if the strings s1 and s2 are equal.

       s1 != s2 true if the strings s1 and s2 are not equal.

       s1	true if s1 is not the null string.

       n1 -eq n2
		true if the integers n1 and n2 are algebraically  equal.   Any
		of  the	 comparisons -ne, -gt, -ge, -lt, or -le may be used in
		place of -eq.

       These primaries may be combined with the following operators:

       !      unary negation operator

       -a     binary and operator

       -o     binary or operator

       ( expr )
	      parentheses for grouping.

       -a has higher precedence than -o.  Notice that all  the	operators  and
       flags are separate arguments to test.  Notice also that parentheses are
       meaningful to the Shell and must be escaped.

SEE ALSO
       sh(1), find(1)

7th Edition		       October 21, 1988			       TEST(1)
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