Sometime you may want to change the user login name into different one,In that case you can use two options (Login or switch to root mode – su) Method 1: ( Using usermod command ) usermod -l newname oldname Example #usermod -l anthoniraj antony Here the user antony has been changed to anthoniraj Method 2 [...]
1) The “groupadd” command creates a new group account[root@MB327SCS068 ~]# groupadd netadmingroupadd: group netadmin exists[root@MB327SCS068 ~]# groupadd network 2) Adding users into network group[root@MB327SCS068 ~]# useradd antony -g networkuseradd: user antony exists[root@MB327SCS068 ~]# useradd antonyraj -g network[root@MB327SCS068 ~]# useradd ligory -g network[root@MB327SCS068 ~]# useradd basha -g network 3) Setting and changing group password (gpasswd)[root@MB327SCS068 ~]# [...]
The following commands are used to manage the users on your Linux OS1. useradd – Create a new user or update default new user informationExample :[root@myserver ~]# useradd admin 2. passwd – Used to change the user passwdExample :[root@myserver ~]# passwd adminChanging password for user admin.New UNIX password:Retype new UNIX password:passwd: all authentication tokens updated [...]
Using ‘chfn’ command (In Redhat EL4) , we can enter the user information, the same thing you can do with GUI mode using ‘userinfo -a ‘ command [root@MB327SCS068 ~]# chfn rootChanging finger information for root.Name [root]: rootOffice [vit]: vitOffice Phone []: 1234567Home Phone []: 1234567 Finger information changed. Using finger command you can view the [...]
Some times the administrator can lock or unlock the user passwordmeans , the user cannot change the password if administrator set the lock option.the syntax is passwd -l / -u username l – lock the password (user cannot change their password)u – unlock the password (user can change their password) Eg : [root@MB327SCS068 ~]# passwd [...]
We have lot of commands for user management like useradd ,passwd but there is no separate command for finding all users in our Linux machine , But one powerfulcommand is ‘cut’ with some options we can find all users on our system 1) Displaying All users (need root mode) cut -d : -f 1 /etc/passwd [...]