zap is a fork of peanut, which was lovingly crafted by the_gastropod as a shameless lift of boom. So zap is like boom, but it has one less letter. That's better!
> gem install zap > zap ::::::::: :::. ::::::::::. .: '`````;;; ;;`;; `;;;```.;;;;;; .n[[',[[ '[[, `]]nnn]]' '[[ ,$$P" c$$$cc$$$c $$$"" $$ ,888bo,_ 888 888,888o "" `""*UMM YMM ""` YMMMb MM zap's snatchin yo clipboards up. `zap foo bar` sets the "foo" value to "bar" `zap foo` copies the contents of "foo" into your clipboard `zap rm foo` unsets the value of "foo" `zap foo p` copies the contents of your clipboard into "foo" `zap list` shows the values zap knows about. `zap help` shows this help.
Some unix-y environment. OSX or X.