A tool and library for transferring data with URL syntax; supports a lot of protocols.

Lightweight and easy-to-use download utility; it supports HTTP/HTTPS, FTP, SFTP, BitTorrent, Metalink and multiple sources; cross-platform.

Curses front-end for Remind written in OCaml with vertically scrollable time table.

A comand line interface to manage hierarchical todos. Each task has a title, a long text description, a deadline (tudu warns you when the date is close), and a scheduled date. There are categories and priorities.

A minimal clone of Wunderlist, with 30% of its features. GTD oriented. It stores the task list in a hidden JSON file in the home directory, making it easy to backup or share them.

Minimalistic todo manager that uses a simple plain text file to keep track of items; implemented as a shell script.

Todo manager with advanced features; dedicated synchronization server available; many plugins and related tools; healthy software project.

Calendar program for Unix/Linux systems that can keep track of events; custom, plain text storage format; interesting and fully functional.

Project-based todo manager: every task must be specified with a mandatory project indication. Tasks are stored within a SQLlite DB. Written in Python.

A fully-featured task manager encapsulated within a Python script (just carry around the script to retain all the TODOs). When the script is run, a Python shell is opened, where task-related commands can be entered (ADD, LIST, etc.); a pity that commands are uppercase, which requires the annoying use of the Shift key.

Console carddav client written in Python.

"ppl is free software made out of other free software. It is built on top of Ruby and Git, and the completely free vcard address book format."

CLI and terminal calendar program, able to synchronize with CalDAV servers through vdirsyncer.

Dateutils are a bunch of tools that revolve around fiddling with dates and times in the command line with a strong focus on use cases that arise when dealing with large amounts of financial data.

termsaver to enjoy fancy ASCII screensavers like matrix, clock, starwars, and a couple of not-safe-for-work screens.

Stack overflow command line client written in Python. Search and browse stack overflow without leaving the terminal.

Powerline is a statusline plugin for vim, and provides statuslines and prompts for several other applications, including zsh, bash, tmux, IPython, Awesome and Qtile

Tiny date, time diff calculator.

Neofetch is a CLI system information tool written in BASH. Neofetch displays information about your system next to an image, your OS logo, or any ASCII file of your choice.

Ruby Gem to colorize the output of the cat command.