Recently, I have just started to learn linux and I am currently trying to make a shell script that can automate the task of creating user accounts, assigning them passwords and then assigning them to groups.I have got so far as being able to create the user account and creating a random password for them by using file descriptors, but have no idea of how I can automatically assign them to a group.If it matters I am using the Raspberry Pi.The code I have so far is:exec 3< users.txtexec 4< passwords.txtwhile read iuser <&3 && read ipasswd <&4 ; do    adduser $iuser    echo $ipasswd | passwd --stdin $iuserdone
Shell Script Help - Automatically assign users to group
shell;shell script;scripting