How to add user via CLI Linux

How to add user via CLI Linux

root@ubuntu:/home# useradd -d /home/ldapadmin -s /bin/bash -m ldapadmin
root@ubuntu:/home# passwd ldapadmin
Enter new UNIX password:
Retype new UNIX password:
passwd: password updated successfully


verify

root@ubuntu:/home# ls
ldapadmin  ruamit
root@ubuntu:/home# grep ldapadmin /etc/passwd
ldapadmin:x:1001:1001::/home/ldapadmin:/bin/bash
root@ubuntu:/home# grep ldapadmin /etc/group
ldapadmin:x:1001:
root@ubuntu:/home# grep ldapadmin /etc/shadow
ldapadmin:$6$AMNnkWYY$jFbAtB2Lb8/PNbZlKvlyoPf8DhAIBwSpU/5TYlWLZSGkGxUsma.Sq49nfJRhVgnRLE.mU8El/3m.JEdV8M/511:15386:0:99999:7:::
root@ubuntu:/home#
root@ubuntu:/home# ls -al
total 16
drwxr-xr-x  4 root      root      4096 2012-02-16 16:57 .
drwxr-xr-x 22 root      root      4096 2012-02-16 11:26 ..
drwxr-xr-x  2 ldapadmin ldapadmin 4096 2012-02-16 16:57 ldapadmin
root@ubuntu:/home#

sample when login

root@ubuntu:/home# ssh -l ldapadmin localhost
ldapadmin@localhost's password:

Last login: Thu Feb 16 16:46:24 2012 from 192.168.2.200
ldapadmin@ubuntu:~$
ldapadmin@ubuntu:~$ ls -al
total 28
drwxr-xr-x 3 ldapadmin ldapadmin 4096 2012-02-16 16:46 .
drwxr-xr-x 4 root root 4096 2012-02-16 16:46 ..
-rw-r--r-- 1 ldapadmin ldapadmin  220 2011-04-01 02:26 .bash_logout
-rw-r--r-- 1 ldapadmin ldapadmin 3353 2011-04-01 02:26 .bashrc
drwx------ 2 ldapadmin ldapadmin 4096 2012-02-16 16:46 .cache
-rw-r--r-- 1 ldapadmin ldapadmin  179 2010-09-15 18:41 examples.desktop
-rw-r--r-- 1 ldapadmin ldapadmin  675 2011-04-01 02:26 .profile
ldapadmin@ubuntu:~$



how to delete

root@ubuntu:/home# userdel -r ldapadmin

verify

root@ubuntu:/home# grep ldapadmin /etc/passwd
root@ubuntu:/home# grep ldapadmin /etc/group
root@ubuntu:/home# grep ldapadmin /etc/shadow

root@ubuntu:/home# ls -al
total 12
drwxr-xr-x  3 root   root   4096 2012-02-16 17:01 .
drwxr-xr-x 22 root   root   4096 2012-02-16 11:26 ..
root@ubuntu:/home#