Sun Microsystems, Inc.
spacerspacer
spacer   www.sun.com docs.sun.com | | |  
spacer
black dot
   
A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z
    
 
FMLI Commandstest(1F)


NAME

 test - condition evaluation command

SYNOPSIS

 test expression
  expression

DESCRIPTION

 

test evaluates the expression expression and if its value is true, sets a 0 (TRUE) exit status; otherwise, a non-zero (FALSE) exit status is set; test also sets a non-zero exit status if there are no arguments. When permissions are tested, the effective user ID of the process is used.

All operators, flags, and brackets (brackets used as shown in the second SYNOPSIS line) must be separate arguments to test. Normally these items are separated by spaces.

USAGE

 

Primitives

 

The following primitives are used to construct expression:

-r filename
True if filename exists and is readable.
-w filename
True if filename exists and is writable.
-x filename
True if filename exists and is executable.
-f filename
True if filename exists and is a regular file.
-d filename
True if filename exists and is a directory.
-c filename
True if filename exists and is a character special file.
-b filename
True if filename exists and is a block special file.
-p filename
True if filename exists and is a named pipe (FIFO).
-u filename
True if filename exists and its set-user-ID bit is set.
-g filename
True if filename exists and its set-group-ID bit is set.
-k filename
True if filename exists and its sticky bit is set.
-s filename
True if filename exists and has a size greater than 0.
-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 string s1 is 0.
-n s1
True if the length of the string s1 is non-zero.
s1 = s2
True if strings s1 and s2 are identical.
s1 != s2
True if strings s1 and s2 are not identical.
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, and -le may be used in place of -eq.

Operators

 

These primaries may be combined with the following operators:

!
Unary negation operator.
-a
Binary and operator.
-o
Binary or operator (-a has higher precedence than -o).
`(expression)`
Parentheses for grouping. Notice also that parentheses are meaningful to the shell and, therefore, must be quoted.

ATTRIBUTES

 

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPEATTRIBUTE VALUE
AvailabilitySUNWcsu

SEE ALSO

 

find(1), sh(1), attributes(5)

NOTES

 

If you test a file you own (the -r , -w , or -x tests), but the permission tested does not have the owner bit set, a non-zero (false) exit status will be returned even though the file may have the group or other bit set for that permission. The correct exit status will be set if you are super-user.

The = and != operators have a higher precedence than the -r through -n operators, and = and != always expect arguments; therefore, = and != cannot be used with the -r through -n operators.

If more than one argument follows the -r through -n operators, only the first argument is examined; the others are ignored, unless a -a or a -o is the second argument.


SunOS 5.9Go To TopLast Changed 5 Jul 1990

 
      
      
Copyright 2002 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.