Just gonna leave this here. https://github.com/synacor/dtk https://github.com/synacor/dtk Its filter functions are Perl, but you could do something similar wi

Just gonna leave this here. https://github.com/synacor/dtk https://github.com/synacor/dtk Its filter functions are Perl, but you could do something similar with JS if you were a masochist. No need to build a new shell, though.