Exit with the status determined by EXPRESSION.
Tag | Description |
--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
NOTE: your shell may have its own version of test and/or [, which usually supersedes
the version described here. Please refer to your shells documentation
for details about the options it supports.