useradd Linux Commands

useradd COMMAND:

useradd - Adds new user to the linux system, with specified user-name. When a new user is added then a corresponding entry is made in files /etc/passwd, /etc/group and /etc/shadow

SYNTAX :

useradd [options] [username]

OPTIONS:

EXAMPLE:

1. To add new user:
   useradd hiox
   
   This command will add a new user with name hiox.
2. To add user but not allow to login in the system:
   useradd -s /bin/nologin hiox
   
   This command will add user hiox but not allow to login.

   In above command:
   hiox	-Is the user-name
   /bin/nologin	-Is Shell assigned to the user
3. To set expire date of the user:
   useradd -e 2008-06-30 hiox
   
   This command will add user hiox and set the expire date to 2008-06-30.

   In above command:
   hiox	-Is the user-name
   2008-06-30	-Is date on which the user-account will be expired
4. To create user without creating home directory:
   useradd -M hiox
   
   The above command will create user hiox but home directory will not be created.