touch

Usage: touch [OPTION]... FILE...

Update the last-modified date on (or create) FILE(s).

Options:

			-c	Do not create files
		

Example:

			$ ls -l /tmp/foo
			/bin/ls: /tmp/foo: No such file or directory
			$ touch /tmp/foo
			$ ls -l /tmp/foo
			-rw-rw-r--    1 andersen andersen        0 Apr 15 01:11 /tmp/foo