Perl

A grep-like tool optimized for programmers, written in Perl

Enjoy an ASCII art aquarium in your terminal

Colored du - display disk usage with a colorful histogram

Count blank lines, comment lines, and source code lines in many languages

Make your diffs human-readable instead of machine-readable

git add, commit and push in one go

Comprehensive system information script for Linux

Calculate IP network broadcast, network, wildcard mask, and host range

Command line interface for KeePass password databases

A repository management tool for multiple VCS repositories

Execute jobs in parallel from the shell using one or more computers

sendmail/maildir interface to Slack

Command-line tools for slicing and dicing JSON records

Filesystem snapshot utility based on rsync with rotation scheduling

Terminal-based RSVP speed reading filter aligned on optimal reading points

Edit directory contents in a text editor

Lightweight application to search and stream YouTube videos

ZFS-centric backup tool with snapshot management and thinning