In Linux, what does the rwx notation represent?

In Linux, what does the rwx notation represent?

• A. User ownership only, no group or others
• B. Directory size in bytes
• C. File and directory permissions for user/group/others (read, write, execute)
• D. Network permissions

Answer: (C)

In Linux, the rwx notation represents file and directory permissions for three classes: the owner, the group, and others. Each class can have three rights: read (r), write (w), and execute (x). The presence of a letter means that permission is granted, while a dash means it’s not. For example, a listing like -rwxr-xr-- shows that the owner can read, write, and execute; the group can read and execute; and others can only read. On directories, execute means you can traverse into the directory, while read lets you list its contents, and write allows creating or deleting entries if permitted. This concept is distinct from directory size, network permissions, or ownership, which are separate attributes.

In Linux, the rwx notation represents file and directory permissions for three classes: the owner, the group, and others. Each class can have three rights: read (r), write (w), and execute (x). The presence of a letter means that permission is granted, while a dash means it’s not. For example, a listing like -rwxr-xr-- shows that the owner can read, write, and execute; the group can read and execute; and others can only read. On directories, execute means you can traverse into the directory, while read lets you list its contents, and write allows creating or deleting entries if permitted. This concept is distinct from directory size, network permissions, or ownership, which are separate attributes.