File system security (access rights) In your home directory, type % ls -l (l for long listing!) You will see that you now get lots of details about the contents of your directory, similar to the example below. Each file (and directory) has associated access rights, which may be found by typing ls -l . Also, ls -lg gives additional information as to which group owns the file (beng95 in the following example): -rwxrw-r-- 1 ee51ab beng95 2450 Sept29 11:52 file1 In the left-hand column is a 10 symbol string consisting of the symbols d, r, w, x, -, and, occasionally, s or S. If d is present, it will be at the left hand end of the string, and indicates a directory: otherwise - will be the starting symbol of the string. The 9 remaining symbols indicate the permissions, or access rights, and are taken as three groups of 3. The left group of 3 gives the file permissions for the user that owns the file (or directory) (ee51...