Types of users:
- super users(#) --------------------------- >> called 'root user'
- Normal user($) ---------------------------->> Normal users are the users created by the root or another user with sudo privileges
- pseudo user($) ---------------------------->> sudo meaning superuser do or set user do
----------------------------------------------------------------------------------------------------------------------------------
Users Details
who ---------------------- >>> All users details who logged in currently
who am i ---------------------- >>> current user details
logname ---------------------- >>> login user name
[haritaraka12078@cxln4 ~]$ history| grep -i "mysql"
985 mysql -h ip-172-31-13-154 -u sqoopuser -p
986 mysql -h cxln2.c.thelab-240901.internal -u sqoopuser -pNHkkP876rp
991 mysql -h cxln2.c.thelab-240901.internal -u sqoopuser -pNHkkP876rp
996 mysql -h cxln2.c.thelab-240901.internal -u sqoopuser -pNHkkP876rp
[haritaraka12078@cxln4 ~]$ !996
