compress/uncompress/listcompress shell functions

compression.sh

function compress() {
	this="$0"
	function usage() {
		echo "Usage: $this file.{zip,tgz,tbz2,xz,7z,exe} target [target ...]" >&2
	}
	test $# -lt 2 && ( usage; return 1 )
	name="$1"
	shift
	case "$name" in
	*.exe)
		7z a -sfx  "$name" $@
		;;
	*.zip)
		7z a -tzip "$name" $@ 
		;;
	*.7z)
		7z a -t7z  "$name" $@
		;;
	*.tgz|*.tbz2|*.xz)
		tar -cvf  "$name" $@
		;;
	*)
		usage; return 1
		;;
	esac
}

function uncompress() {
	this="$0"
	function usage() {
		echo "Usage: $this file.{zip,tgz,tbz2,xz,7z,exe} [output dir]" >&2
	}
	test $# -lt 1 && ( usage; return 1 )
	name="$1"
	output="$2"
	test -z "$output" && output="."
	mime="$(file -b --mime "$name" | cut -d\; -f1)"
	case "$mime" in
	application/x-executable)
		7z x -sfx  -o"$output" "$name"
		;;
	application/zip)
		7z x -tzip -o"$output" "$name"
		;;
	application/x-7z-compressed)
		7z x -t7z  -o"$output" "$name"
		;;
	application/x-gzip|application/x-bzip2|application/x-tar)
		mkdir -p "$output"
		tar -xvC "$output" -f "$name"
		;;
	*)
		usage; return 1
		;;
	esac
}

function listcompress() {
	this="$0"
	function usage() {
		echo "Usage: $this file.{zip,tgz,tbz2,xz,7z,exe}" >&2
	}
	test $# -lt 1 && ( usage; return 1 )
	name="$1"
	mime="$(file -b --mime "$name" | cut -d\; -f1)"
	case "$mime" in
	application/x-executable)
		7z l -sfx  "$name"
		;;
	application/zip)
		7z l -tzip "$name"
		;;
	application/x-7z-compressed)
		7z l -t7z  "$name"
		;;
	application/x-gzip|application/x-bzip2|application/x-tar)
		tar -tvf "$name"
		;;
	*)
		usage; return 1
		;;
	esac
}