Linux Command chmod 755

The linux Command chmod 755 means that chmod is the command for setting file permissions in Linux. The following number indicates the permissions of different users or user groups. Generally, there are three numbers: the first number indicates the permissions of the file owner. The second number indicates the permissions of other users in the same user group as the file owner. The third number indicates the permissions of other user groups. Www.2cto.com has three permissions: Read (r = 4), write (w = 2), and execute (x = 1 ). In combination, there are also readable executable (rx = 5 = 4 + 1) and readable writable (rw = 6 = 4 + 2), readable and writable (rwx = 7 = 4 + 2 + 1 ). Therefore, chmod 755 sets the user's permissions to: 1. the file owner can read and write and execute -- 72. other users in the same user group as the file owner can read and execute-5 3. other user groups can be read and executed-5