The DB Browser for SQLite
Wraps all package managers with a unifying CLI
Drush is a command-line shell and scripting interface for Drupal
Rename anything
csv2odf can convert csv data to formatted spreadsheets and documents.
A shell script to convert any file or command output into a html table
Accepts a wide range of input, output from git commands & grep results
Command-line mass conversion of any directory tree of audio files.
Command-line tools for working with Architecture Decision Records
A command line tool to manage bytes in hex dumps or packet captures
Initial system (box) generator for biological molecular simulations
A command line tool to extract data from xml files
Script language for processing binary data