test(1)

NAME

   test - check file types and compare values

SYNOPSIS

   test EXPRESSION
   test

   [ EXPRESSION ]
   [ ]
   [ OPTION

DESCRIPTION

   Exit with the status determined by EXPRESSION.

   --help display this help and exit

   --version
          output version information and exit

   An omitted EXPRESSION defaults to false.  Otherwise, EXPRESSION is true
   or false and sets exit status.  It is one of:

   ( EXPRESSION )
          EXPRESSION is true

   ! EXPRESSION
          EXPRESSION is false

   EXPRESSION1 -a EXPRESSION2
          both EXPRESSION1 and EXPRESSION2 are true

   EXPRESSION1 -o EXPRESSION2
          either EXPRESSION1 or EXPRESSION2 is true

   -n STRING
          the length of STRING is nonzero

   STRING equivalent to -n STRING

   -z STRING
          the length of STRING is zero

   STRING1 = STRING2
          the strings are equal

   STRING1 != STRING2
          the strings are not equal

   INTEGER1 -eq INTEGER2
          INTEGER1 is equal to INTEGER2

   INTEGER1 -ge INTEGER2
          INTEGER1 is greater than or equal to INTEGER2

   INTEGER1 -gt INTEGER2
          INTEGER1 is greater than INTEGER2

   INTEGER1 -le INTEGER2
          INTEGER1 is less than or equal to INTEGER2

   INTEGER1 -lt INTEGER2
          INTEGER1 is less than INTEGER2

   INTEGER1 -ne INTEGER2
          INTEGER1 is not equal to INTEGER2

   FILE1 -ef FILE2
          FILE1 and FILE2 have the same device and inode numbers

   FILE1 -nt FILE2
          FILE1 is newer (modification date) than FILE2

   FILE1 -ot FILE2
          FILE1 is older than FILE2

   -b FILE
          FILE exists and is block special

   -c FILE
          FILE exists and is character special

   -d FILE
          FILE exists and is a directory

   -e FILE
          FILE exists

   -f FILE
          FILE exists and is a regular file

   -g FILE
          FILE exists and is set-group-ID

   -G FILE
          FILE exists and is owned by the effective group ID

   -h FILE
          FILE exists and is a symbolic link (same as -L)

   -k FILE
          FILE exists and has its sticky bit set

   -L FILE
          FILE exists and is a symbolic link (same as -h)

   -O FILE
          FILE exists and is owned by the effective user ID

   -p FILE
          FILE exists and is a named pipe

   -r FILE
          FILE exists and read permission is granted

   -s FILE
          FILE exists and has a size greater than zero

   -S FILE
          FILE exists and is a socket

   -t FD  file descriptor FD is opened on a terminal

   -u FILE
          FILE exists and its set-user-ID bit is set

   -w FILE
          FILE exists and write permission is granted

   -x FILE
          FILE exists and execute (or search) permission is granted

   Except for -h and  -L,  all  FILE-related  tests  dereference  symbolic
   links.    Beware   that  parentheses  need  to  be  escaped  (e.g.,  by
   backslashes)  for  shells.   INTEGER  may  also  be  -l  STRING,  which
   evaluates to the length of STRING.

   NOTE:  [  honors  the  --help and --version options, but test does not.
   test treats each of those as it treats any other nonempty STRING.

   NOTE: your shell may have its own  version  of  test  and/or  [,  which
   usually  supersedes  the  version described here.  Please refer to your
   shell's documentation for details about the options it supports.

AUTHOR

   Written by Kevin Braunsdorf and Matthew Bradburn.

REPORTING BUGS

   GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
   Report [ translation bugs to <http://translationproject.org/team/>

COPYRIGHT

   Copyright © 2016 Free Software Foundation, Inc.   License  GPLv3+:  GNU
   GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
   This  is  free  software:  you  are free to change and redistribute it.
   There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

   Full documentation at: <http://www.gnu.org/software/coreutils/[>
   or available locally via: info '(coreutils) test invocation'

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Free and Open Source Software