nixCraft

Task 1 – Automating account creation by using shell scripts.

You have been asked by your boss to set up 100 user accounts for your SLES9 Linux server. Each user account should have the following details:

Login name: userxx
Password: p@Ssxx
UID: 1900+xx
GID: 747 (name of group is IMFDelegate
Informational name: “Secret Agent xx”
Home directory: /home/agentxx
Login shell: /bin/sh

For example, the first user will have the following details:
Login name: user00
Password: p@Ss00
UID: 1900
GID: 747
Informational name: “Secret Agent 00”
Home directory: /home/agent00
Login shell: /bin/sh

And for example, the last user will have the following details:
Login name: user99
Password: p@Ss99
UID: 1999
GID: 747
Informational name: “Secret Agent 99”
Home directory: /home/agent99
Login shell: /bin/sh

Notify your lecturer once you have successfully created the 100 user accounts. You will then be required to demonstrate the successful login of some randomly selected accounts.

Note: You will need to create a shell script to automate this task. You can make use of the groupadd and useradd scripts inside your shell script. You can also use the mkpass command to create the encrypted passwords.


Anyone can help me with this??Thanks

This example Written by Mahesh and Sathish on 23-02-2008 at Narasaraopet, will explain how to create multiple users using shell script.

####### file name : test.sh ##########
#author : mahesh & sathish
#date : 23-02-2008
#NARASARAOPET

uid="user"
i=1

#modify 50 to user required number and "student" to your choice group
number_of_users=50
mygroup="student"

groupadd $mygroup
while [ $i -le $number_of_users ]
do
useradd -g $mygroup $uid$i
sh pwd $uid$i
i=`expr $i + 1`
done

###### end of test.sh ########

#create one more file with the name pwd and give execute permissions


####### file name : pwd ##########
#author : mahesh & sathish
#date : 23-02-2008
#NARASARAOPET

passwd --stdin $1 <<end
$1123
$1123
end
##########end of pwd ############

#the above 2 programs creates 50 users as follows
#first user login-id : user1
#first user password : user1123
# ....
# ....
#50th user login-id : user50
#50th user password : user50123

#run the first program i.e test.sh ex: ./test.sh (give chmod +x test.sh)