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