Changing File Permissions

On computer filesystems, different files and directories have permissions that specify who and what can read, write, modify and access them. Permission Modes 7 5 5 user group world r+w+x r+x r+x 4+2+1 4+0+1 4+0+1 = 755 The permission mode is computed by adding up the following values for the user, the file group, and…