Merge pull request paulirish#7 from christianv/extract

extract() archives - the #html5devconf challenge

.functions

@@ -96,3 +96,26 @@ function unidecode() {
 	perl -e "binmode(STDOUT, ':utf8'); print \"$@\""
 	echo # newline
 }
+
+# Extract archives - use: extract <file>
+# Credits to http://dotfiles.org/~pseup/.bashrc
+function extract() {
+	if [ -f $1 ] ; then
+		case $1 in
+			*.tar.bz2) tar xjf $1 ;;
+			*.tar.gz) tar xzf $1 ;;
+			*.bz2) bunzip2 $1 ;;
+			*.rar) rar x $1 ;;
+			*.gz) gunzip $1 ;;
+			*.tar) tar xf $1 ;;
+			*.tbz2) tar xjf $1 ;;
+			*.tgz) tar xzf $1 ;;
+			*.zip) unzip $1 ;;
+			*.Z) uncompress $1 ;;
+			*.7z) 7z x $1 ;;
+			*) echo "'$1' cannot be extracted via extract()" ;;
+		esac
+	else
+		echo "'$1' is not a valid file"
+	fi
+}