Modifying Permissions

Altering permissions of a file or directory is achieved using the chmod command. To grant the owner/user of a file READ, WRITE and EXECUTE permissions we simply type: chmod u=rwx <file>’ - as shown:

The command simply sets the RWX bits for ‘u’ (user), this can also be extended for ‘g’ (group) and ‘o’ (other), furthermore you can adjust the permissions to suit what you require - ‘chmod u=r <file>’ for READ only, etc.