TEST - Online Linux Manual PageSection : 1
Updated : January 2023
Source : GNU coreutils 9.1
Note : User Commands
NAMEtest − check file types and compare values
SYNOPSIStest 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) −N FILE FILE exists and has been modified since it was last read −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 the user has read access −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 the user has write access −x FILE FILE exists and the user has execute (or search) access 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: Binary −a and −o are inherently ambiguous. Use 'test EXPR1 && test EXPR2' or 'test EXPR1 || test EXPR2' instead. 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.
AUTHORWritten by Kevin Braunsdorf and Matthew Bradburn.
REPORTING BUGSGNU coreutils online help: <https://www.gnu.org/software/coreutils/>
Report any translation bugs to <https://translationproject.org/team/>
COPYRIGHTCopyright © 2022 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <https://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 ALSOaccess(2)
Full documentation <https://www.gnu.org/software/coreutils/test>
or available locally via: info '(coreutils) test invocation' 0
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