Extract various archive types.

extract

#!/usr/bin/env bash

###
### extract: Utility for extracting various archive types.
###

shopt -s extglob

USAGE="Usage: extract FILE [FILE] ..."

if [[ $# -eq 0 ]]; then
	printf '%s\n' "$USAGE"

	exit 1
fi

if [[ ! -f "$1" ]]; then
	printf 'Invalid file %s\n' "$1"
	printf '\n%s\n' "$USAGE"

	exit 1
fi

while [[ $# -gt 0 ]]; do
	case "$1" in
		*.tar)
			tar xf "$1"

			shift
		;;
		*.t?(ar.)bz2)
			tar xjf "$1"

			shift
		;;
		*.t?(ar.)gz)
			tar xzf "$1"

			shift
		;;
		*.bz2)
			bunzip2 "$1"

			shift
		;;
		*.gz)
			gunzip "$1"

			shift
		;;
		*.rar)
			unrar e "$1"

			shift
		;;
		*.zip)
			unzip "$1"

			shift
		;;
		*.Z)
			uncompress "$1"

			shift
		;;
		*.7z)
			7z x "$1"

			shift
		;;
		*)
			printf 'Unsupported archive type %s. Unable to extract archive contents.\n' "$1"

			exit 1
		;;
	esac
done