Unary Operator Shell Scripting | Tech Arkit

-b file is a block device file.

-c file is a character device file.

-d file is a directory.

-e file exists.

-f file is a regular file.

-g file has its setgid bit set.

-G file's group ID is the same as the effective group ID

-h file is a symbolic link.

-k file has its sticky bit set.

-L file is a symbolic link.

-O file is owned by the shell's effective user ID.

-p file is a pipe or named pipe

-r file is readable.

-s file is not empty.

-S file is a socket.

-u file has its setuid bit set.

-w file is writable.

-x  file is executable



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