#!/bin/sh ! echo "$1" | grep "https*://\S\+\.[A-Za-z]\+\S*" >/dev/null && notify-send -i "$PIX/rss.svg" "That doesn't look like a full URL." && exit RSSFILE="$HOME/.config/newsboat/urls" if awk '{print $1}' "$RSSFILE" | grep "^$1$" >/dev/null; then notify-send -i "$PIX/rss.svg" "You already have this RSS feed." else echo "$1" >> "$RSSFILE" && notify-send -i "$PIX/rss.svg" "RSS feed added." fi