debian-bash/install.sh

#!/bin/bash

[ `id -u` -ne 0 ] && echo 'root privilege required' && exit 1

BASEDIR=$PWD

if [[ ! $BASEDIR == '/opt/debian-bash' ]]; then
    # download and filfull /etc/debian-bash, then run it from folder

    rm -rf /opt/debian-bash
    TEMP=`mktemp -d`
    cd $TEMP
    echo $TEMP
    wget https://git.artcode.re/pvincent/debian-bash/archive/master.tar.gz
    tar -xzf master.tar.gz
    mv debian-bash /opt/
    cd /opt/debian-bash
    ./install.sh
    rm -rf $TEMP
    exit 0

else

    ORIGINAL="ORIGINAL"
    declare -a arr=(/etc/bash.bashrc /etc/inputrc /etc/vim/vimrc)

    for i in "${arr[@]}"
    do
        if [ ! -f "$i.$ORIGINAL" ]; then

            echo "$i needs installation $(basename $i)"
            mv "$i" "$i.$ORIGINAL"
            ln -s "$BASEDIR/$(basename $i)" "$i"
        else
            echo "$i" already overriden
        fi
    done

    # install inside active LXC containers
    if [[ -f '/snap/bin/lxc' ]]; then
        for container in `/snap/bin/lxc list -c n --format csv`; do
            echo "pushed to $container"
            /snap/bin/lxc file push /opt/debian-bash "${container}/opt/" -r
            /snap/bin/lxc exec "$container" -- sh -c "cd /opt/debian-bash && ./install.sh"
        done
    fi

    source /etc/bash.bashrc
fi