User Creations, modification and password settings and removing

Four ways of user creations

1. adduser             2. useradd             3. redhat-config-user          4. click system settings – user & groups

# useradd vasanth

# passwd vasanth

new password: xxxxxx

retype password: xxxxxx (at least 6 char)

# useradd –u 650 –d /home/vasanth –m vasanth

# useradd –u 700 –d /home/prem –m prem

# usermod –u 700 -o -l vasanth babaji (username modify from vasanth to babaji)

# passwd –d vasanth (remove the password)

# userdel –r vasanth (remove the vasanth user from /home dir)

Some of the important /etc configuration files modification and processing

# vi /etc/issue (After login to the user to display Terminal screen number, date and time)

Terminal : \l

Date : \d

Time : \t

Hostname : \n

wq!

Ctrl –d (refresh )

# vi /etc/motd (Set the title banner for after login to the user )