#!/usr/bin/env bash

#------------------------------------------------------------------------------
# Path         - /usr/bin/editbash
# GitHub       - https://github.com/The-Repo-Club/
# Author       - The-Repo-Club [wayne6324@gmail.com]
# Start On     - Sat 30 Oct 15:00:06 BST 2021
# Modified On  - Sun 31 Oct 01:01:56 BST 2021
#------------------------------------------------------------------------------


Err(){
	printf '%s\n' "$2" 1>&2
	[ $1 -gt 0 ] && exit $1
}

File=$1
[ -z "$File" ] && Err 1 "No file provided"
[ -f "$File" ] || Err 1 "File doesn't exist"

NewDoc=
while IFS= read -r Line; do
    [[ $Line == "# Modified"* ]] && Line='# Modified On  - '$( date -r "$File" )
    NewDoc=$NewDoc$Line$'\n'
done < "$File"
printf '%s' "$NewDoc" > "$File"

printf "%s/%s has been edited!\n" "$(pwd)" "$File"