Linux chmod Demystified
Understanding Linux Permissions Linux, adhering to UNIX heritage, possesses a robust file permission system. Every file and directory can have specific read, write, and execute permissions for its owner, group, and other users. This mechanism facilitates security and resource sharing in multi-user systems. Composition of Basic Permissions Linux permissions consist of three basic elements: read (r), write (w), and execute (x). These permissions can be set independently for the owner, group, and others. Notations like -rwxr-xr– seen while listing files represent combinations of such permissions. ...