Comments on Create Users And Change Passwords With A Bash Script

Just something that should be considered.  Force all your users to change their passwords because the temporary password is a security risk

#!/bin/sh
for i in `more userlist.txt `
do
echo $i
echo $i | change -d 0 "$i"
echo; echo "User $i will be forced to change password on next login!"
done

 I then log as that user and see this

WARNING: Your password has expired.
You must change your password now and login again!
Changing password for user amcorona.
Changing password for amcorona
(current) UNIX password:
 

 You might want to check what you have written in the article as you would not want to save your bash script and then try and execute a file containing usernames.

chmod 755 userlist.txt

Now run the file:

./userlist.txt

 ;)

This script works. Thanks

want to set password for all user same as i need how to do it for multiple users in this script

echo $i | change -d 0 "$i"
 should be

echo $i | chage -d 0 "$i"

And if you are not running these scripts as root you will need to put sudo in the commands with explicit paths. Of course with sudo it will prompt you for a password unless you are in a sudoers group with NOPASSWD:

On SuSE:

# which chage
/usr/bin/chage

 # which passwd
/usr/bin/passwd 

I try this in Ubuntu and seems not working :(

There is some problem in the password script, I have checked with the below script it's working fine.

#!/bin/sh
for i in `more userlist.txt `
do
echo $i
echo $i"123" | passwd "$i" --stdin
echo; echo "User $username's password changed!"
done

Regards,
Ankur

Thanks for the script.. Its working..

When I follow these steps ik get a message:

./userlist.txt line1: NKokmeijer: command not found

./userlist.txt line2: FLuursen: command not found

./userlist.txt line3: SNiezen: command not found

./userlist.txt line4: GBielen: command not found

What is going wrong?

you need to make few changes like inside the bash file theire is adduser line, replace it with useradd  and run script as "sh sciptname.sh" in case you are working with redhat linux.

Thanks.

Excellent! I had used a script to create multiple users, but I forgot to include passwords in the script. Your script helped me change their passwords on multiple servers. Thanks for posting this.

Give me steps how to created the commentline for the different users in this same script?

so all this info is good to know, but my question is what syntax do i use to create a script that prints all the data from

/etc/passwd while also having it sorted. To aid with user managment being able to look over a complet list of current users while creating new users. Any and All assistance is greatly appriciated.

i not get clear what name to put for the bash file

I recommend you to create a file with username & password. Then the script will read the username and password from file and create user:

The file userlist.txt format:

username1 p@assword1

username2 p@assword2

..etc

The shell script:

#!/bin/bash

while read u1 p1

do

   echo Username: $u1 Password: $p1 created

   adduser  $u1

   echo $p1 | passwd --stdin "$u1"

 echo Username: $u1 Password: $p1 created

done < userlist.txt

last, run the script as root:

sh createuser.sh

or:

chmode +x createuser.sh

./createuser.sh

When i run this script it alert "command in userlist.txt not found"

dear,

I need to change database user passwd in mysql.

like as: i have db user name is openexchange and db name is oxdatabase_5, this database i have many user and passwd. i need to a bash script which change user pass from oxdatabase_5 from http client interface.

i am using mail server for change their passwd. 

If I have a text document that is instead formatted like this:

Name:Address:Phone:Email

Name:Address:Phone:Email

How would I implement it in this code to adjust for that? I'm trying to learn and I'm not too familiar with what each command does!

This doesn't work when i run it, it will create new user but does not change the password

this is the error msg :-

passwd: Only one user name may be specified.

seems you need to modify below parameters. It should look like echo $i"123" | passwd "$i" --stdin

echo $i"123" | passwd –-stdin "$i"

hai

after executing the above script as following your steps 

login as normal user, its not asking password change

login as: noor

[email protected]'s password:

Access denied

[email protected]'s password:

passwd does not have '--stdin' option in all distributions (e.g. SLES 12 does not).

Therefore, check "man chpasswd"

I see that you could make just a single script but make all parts in order so everything works, all I am trying to say that you could make one single script that does all of that.

Hello I have worked on this more than 1 day and figured that users that run UNIX password will not work for them so I have came up with the solution

useradd -m -s /bin/bash-4.4 "$username"

echo "$username:password" | chpasswd         

echo $added | chage -d0 "$username"

This will create a user, give him password right a way and then make him change password on next log in.

Plesae share me code for connect a remote linux servers with a specific user without ssh key to pass passwords over the bash shell

Guys,

I got this below request to create a single script to perform all the below activities by taking an input from user.

User Add - > need to have ticket number and Email ID of user who requested.

User Disable -> Need to disable the user for particular days before deleting it.

User Del -> Need to archive the user home directory before deleting it.

Can you please keep all above script in one and it should request user for option like 1. User del 2. User add. 3. User disable option.

Entire script output should be triggered to one file which should be your log file of entire script activity.