How to add users from text file into the unix system?

Question

I have a homework that require creating text file of users in unix and then reading each line of the file and actually adding them to the system?

How can this be done? what i have done:

https://i.sstatic.net/G2LAK.png

however it's not working.

Answer 1

Create a file with name: text witch contains all users name.

for example my text file contents usertemp

this is only one test user name.

Then create bash script file like this

run.sh

#!/bin/bash

while read line; do 

useradd $line

done < text

Make the script run.sh runnable by type in terminal

chmod +x run.sh

At last run script with

./run.sh

Running above script may need root privileges.

sudo ./run.sh

Now these users cant log on because we have not assign any password to them.

[ToDO]

1. Assign password for created list of users.
2. Difference between using adduser and useradd, in this situation. see
3. Read username, password from only one file, text.

[Related posts]

1. https://askubuntu.com/a/1068448/678872

[Edit]

• Remove redundant chmod 777 run.sh as wjandrea said on comment, its only make the script readable writable and executable for everyone see more

• Use read command in script instead of more, to read line by line. I think its better in speed.