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fastmod is a fast partial replacement for codemod. Like codemod, it is a tool to assist you with large-scale codebase refactors, and it supports most of codemod's options. fastmod's major philosophical difference from codemod is that it is focused on improving the use case "I want to use interactive mode to make sure my regex is correct, and then I want to apply the regex everywhere".

A clever little console text editor. Written in C, forked out of mle.

whowatch is a simple, easy-to-use interactive who-like command line program for monitoring processes and users on a Linux system in real time.

A window manager manages the windows that applications bring up. We recommend the best c.ompositing, stacking, tiling, and dynamic window managers.

GNU's framework for secure p2p networking

silky smooth JPEG decoding. Contribute to victorvde/jpeg2png development by creating an account on GitHub.

This is going to be a pretty quick post – I found out about entr relatively recently and I felt like WHY DID NOBODY TELL ME ABOUT THIS BEFORE?!?! So I’m telling you about it in case you’re in the same boat as I was.
There’s a great explanation of the tool with lots of examples on entr’s website.
The summary is in the headline: entr is a command line tool that lets you run a arbitrary command every time you change any of a set of specified files.

Mp3blaster is an audio player for the text console. It's been around since 1997, and supports most UNIX flavors including Linux, *BSD, Mac OS, CygWin