The syntax of the chmod command when using numeric method has the following format chmod OPTIONS NUMBER FILE When using the numeric mode, you can set the permissions for all three user classes (owner, group, and all others) at the same time The NUMBER can be a 3 or 4digits numberChmod means 'change mode' and it changes file or directory mode bits (the way a file can be accessed) You can use chmod in the command line to change file or directory permissions on unix or unixlike systems such as linux or BSDChmod stands for change mode, which changes the file or directory mode bits To put it simply, use chmod command to change the file or directory permissions Following is a sample of ls l command output In this, the 9 characters from 2nd to 10th position represents the
Useradd Command In Linux With Examples Geeksforgeeks