File system tests (GNU Rush – a restricted user shell)

File system tests check file types and ownership. They are similar to options to test shell command:

-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 primary group of the current user.
-h file
-L file: file exists and is a symbolic link
-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 current user
-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
-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

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GNU Rush