Shell function to extract any archive type

extract.sh

# Copied from a tweet by @drbunsen
# https://twitter.com/drbunsen
extract () {
	if [ -f $1 ]
	then
		case $1 in
			(*.tar.bz2) tar xjf $1 ;;
			(*.tar.gz) tar xzf $1 ;;
			(*.bz2) bunzip2 $1 ;;
			(*.rar) unrar x $1 ;;
			(*.gz) gunzip $1 ;;
			(*.tar) tar xf $1 ;;
			(*.tbz2) tar xjf $1 ;;
			(*.tgz) tar xzf $1 ;;
			(*.zip) unzip $1 ;;
			(*.Z) uncompress $1 ;;
			(*) echo "'$1' cannot be extracted via extract()" ;;
		esac
	else
		echo "'$1' is not a valid file"
	fi
}