test(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  opera-
     tors:

     !     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  attri-
     butes:

     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Availability                | SUNWcsu                     |
    |_____________________________|_____________________________|


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 per-
     mission. 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  opera-
     tors,  only  the  first argument is examined; the others are
     ignored, unless a -a or a -o is the second argument.


Man(1) output converted with man2html