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Nuukem/clone-user.sh

Last active November 25, 2019 19:19
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  1. Nuukem revised this gist Nov 25, 2019. No changes.
  2. Nuukem created this gist Nov 25, 2019.
    94 changes: 94 additions & 0 deletions clone-user.sh
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    #!/bin/bash

    # clone a user
    #
    # original script obtained from https://unix.stackexchange.com/a/294885/346736
    # updated olduser_GROUPS line to properly match whole string instead of partial match.
    #
    # usage:
    # if you named this as below then
    # change to the directory and run this command
    # sudo bash clone-user.sh

    echo "============="
    echo "this script will create a new user"
    echo "based on an existing user's data"
    echo
    echo "You will be shown a list of users who can currently log on"
    echo "Remember which user you would like to clone."
    echo "You will be asked for the new user's name, their password"
    echo "and the old user to clone".
    echo "============="
    echo

    echo -n "New user's name: "
    read newuser

    echo -n "New user's password: "
    read newpassword

    echo

    echo "Current users you can clone:"
    echo "----"
    awk -F'[/:]' '{if ($3 >= 1000 && $3 != 65534) print $1}' /etc/passwd
    echo

    echo -n "Old user to clone: "
    read olduser

    echo
    echo "You have selected: "
    echo "----"
    echo "new user: $newuser"
    echo "new user password: $newpassword"
    echo "old user: $olduser"
    echo

    olduser_GROUPS=$(id -Gn ${olduser} | sed "s/ /,/g" | sed -r 's/\<'${olduser}'\>\b,?//g')
    olduser_SHELL=$(awk -F : -v name=${olduser} '(name == $1) { print $7 }' /etc/passwd)

    echo "old user groups: "
    echo "----"
    echo $olduser_GROUPS
    echo "olduser shell: "
    echo $olduser_SHELL
    read -rsp $'Press any key to continue or ctrl-c to exit...\n' -n1 key

    useradd --groups $olduser_GROUPS --shell $olduser_SHELL $newuser

    echo $newuser:$newpassword | chpasswd

    read -rsp $'ready to make home direcoty -- ctrl-c to exit...\n' -n1 key

    mkdir /home/$newuser
    chown -R $newuser:$newuser /home/$newuser

    echo
    echo "Script should be done now."
    echo
    echo "Do you see your new users name below?"
    echo
    awk -F'[/:]' '{if ($3 >= 1000 && $3 != 65534) print $1}' /etc/passwd

    echo
    echo "We are now going to copy the old user's home folder to the new user"
    echo "then change ownership to the new user"
    echo
    read -rsp $'Ready to copy home folder --- or ctrl-c to exit...\n' -n1 key

    rsync -aPv /home/$olduser/. /home/$newuser/
    chown -R --from=$olduser $newuser:$newuser /home/$newuser

    echo
    echo "Now we are going to change the names of files and folders to the new user"
    echo

    grep -rlI $olduser /home/$newuser/ . | sudo xargs sed -i 's/$olduser/$newuser/g'

    echo
    echo "Done now."
    echo
    read -rsp $'Press any key to exit...\n' -n1 key
    echo
    echo