pywal

Generate and change color-schemes, then apply them system-wide to all of your favourite programs.

QuickWall

Directly set wallpapers from Unsplash.

has

Checks for the presence of various commands and their versions on the path.

Ultimate Plumber

Write Linux pipes with live previews.

fkill-cli

Simple cross-platform process killer.

task-spooler

Queue jobs for linear execution.

undollar

Strip the '$' preceding copy-pasted terminal commands.

pipe_exec

Run executables from stdin, pipes and ttys without creating a temporary file.

yank

Yank terminal output to clipboard.

google-font-installer

Download and install Google Web Fonts on your local machine.

neofetch

System information tool.

Glances

System monitoring tool.

aria2

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

curl

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

Deluge

A lightweight, Free Software, cross-platform BitTorrent client; a terminal curses interface, web interface and command line client can connect to a running daemon to manage torrent downloads.

lftp

“Sophisticated ftp/http client, and a file transfer program supporting a number of network protocols”; support for bookmarks and mirroring features.

rsync

Mirror directories across networked machines; handles diffs/changed files; works across SSH; plenty of parameters.