Automating user creation with information from text file

I have one txt in this format:

dfs /home/dfs ashik karki

so now i need a bash script for reading the each word from the text file and what i am going to do is i want to automate adduser and generate random password. Here the user is dfs and home directory is /home/dfs and ashik karki as a comment. So how can i automate this process bu writing a bash script? Thanks!

1 Answer

Try this,

# Login as root if necessary
sudo su
# Create your own adduser function to automate the process
adduser2() { # add the user adduser --home $2 --disabled-login $1 # Create a password (change 10 to the password length you want) local pass=$(openssl rand -base64 10) # Change the password echo -e "$pass\n$pass" | passwd $1 # Print information echo "Password for user $1: $pass" shift 2 echo "Comment: $@"
}
# Loop through lines in your file and execute the adduser2 function with the line as argument.
while IFS= read -r l; do adduser2 $l;
done < file.txt

Notes:

• This will only work when you have no spaces in /path/to/home
• You should consider to let the users set a new password on first login --> (see here)
• If you get a warning unable to write random state, see here.