joking cow

joke.sh

#!/usr/bin/env bash

URL='https://perelki.net/random'
function get_joke {
    current_dir="$PWD"
    cd /tmp
    wget "$URL" --quiet
    from_line="$(fgrep '<!-- POCZATEK -->' ./random  -n | cut -d: -f1)"
    to_line="$(fgrep '<!-- KONIEC -->' ./random  -n | cut -d: -f1)"
    joke="$(head -n $to_line ./random | tail -n $(($to_line - $from_line +1)) - | fgrep '<br />' | tr "\r" -d | sed 's/<br \/>/\n/g')"
    rm random
    cd "$current_dir"
    echo "$joke"
}

get_joke | cowsay