Numeric permission syntax is especially useful when you need to specify all permissions for a file, such as in the following example:

$ chmod 0755 scriptfile.sh
$ ls -l scriptfile.sh 
-rwxr-xr-x    1 drobbins drobbins        0 Jan  9 17:44 scriptfile.sh

In this example, we used a mode of 0755, which expands to a complete permissions setting of "-rwxr-xr-x".