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#!/bin/bash
set -Eeuo pipefail
[ "$(id -u)" -ne 0 ] && echo 'root privilege required' && exit 1
readonly DEBIAN_BASH_DIR='/opt/debian-bash'
#remove /etc/skel/.bashrc
if [ -e /etc/skel/.bashrc ]; then
rm /etc/skel/.bashrc
fi
readonly ORIGINAL="ORIGINAL"
declare -a arr=(/etc/bash.bashrc /etc/inputrc /etc/vim/vimrc)
for i in "${arr[@]}"; do
if [ ! -f "$i.$ORIGINAL" ]; then
mv "$i" "$i.$ORIGINAL"
basefile=$(basename "$i")
ln -s "$DEBIAN_BASH_DIR/$basefile" "$i"
echo "<$i> installed successfully!"
else
echo "<$i> already overriden!"
fi
done