Top useful Linux Commands with Examples

In the Linux most useful commands makes you more easy to manage files system.

Let's learn most known Linux commands.

1) Listing files or Directories
     
         If you want to look the list of  directory or files on your Linux system, use the 'ls' command.

linux Add or remove user from group

How can I add or remove user from group in linux / ubuntu /debian system.

 To create a user enter:

$ sudo adduser username

 To create a GROUP enter:

$ sudo groupadd groupname

 To Add user from GROUP enter:

$ sudo adduser username group name

To Remove User from GROUP enter:

$ sudo deluser user group