root required for init.sh

init.sh

@@ -2,22 +2,24 @@
 
 set -Eeuo pipefail
 
-CURDIR=$PWD
+[ "$(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
 
-ORIGINAL="ORIGINAL"
+readonly 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.$ORIGINAL"
-        ln -s "$CURDIR/$(basename \\"$i\\")" "$i"
+        basefile=$(basename "$i")
+        ln -s "$DEBIAN_BASH_DIR/$basefile" "$i"
+        echo "<$i> installed successfully!"
     else
         echo "<$i> already overriden!"
     fi