A couple bash utilities I use daily(ish)

lnks: List, Save, or Instapaper your Google Chrome links from the terminal. It uses a small amount of Applescript, so it is OS X/MacOS only for now. I'm working on getting around this. https://github.com/unforswearing/lnks

aliaser: a tiny directory traversal/command aliasing tool. https://github.com/unforswearing/aliaser