little-things/extract-urls-for-archiveteam-projects

#!/usr/bin/env bash
if [[ $# -ne 1 || "$1" == '--help' || "$1" == '-h' ]]; then
	printf 'Usage: extract-urls-for-archiveteam-projects PREFIX\n' >&2
	printf 'Reads URLs from stdin, extracts interesting for the different currently relevant AT projects into files prefixed by PREFIX\n' >&2
	exit 1
fi

prefix="$1"
if [[ "${prefix}" == *[*?[]* ]]; then
	printf 'Error: prefixes containing * ? [ not supported\n' >&2
	exit 1
fi

if compgen -G "${prefix}*" >/dev/null; then
	printf 'Error: there already exist files starting with %q\n' "${prefix}" >&2
	exit 1
fi

tee \
	>(grep -Fai imgur >"${prefix}-imgur.txt") \
	>(grep -Fai -e mediafire -e mfi.re >"${prefix}-mediafire.txt") \
	>(grep -Fai pastebin.com >"${prefix}-pastebin.txt") \
	>(grep -Fai -e blogspot -e blogger >"${prefix}-blogger.txt") \
	>(grep -Fai -e telegram.me -e //t.me/ >"${prefix}-telegram.txt") \
	>/dev/null

# Wait for the procsubs to terminate
wait

for f in "${prefix}"-{imgur,mediafire,pastebin,blogger,telegram}.txt; do
	if [[ -f "${f}" && ! -s "${f}" ]]; then
		printf '%q is empty, deleting\n' "${f}" >&2
		rm -- "${f}"
	fi
done