Command-line hacking

Using Linux date calculations to displaying a running countdown time in the terminal.

How to use basic Bash constructs, along with the Gnome gio utility, to assign folder icons to a set of directories.

How to use Bash shell arithmetic, along with the 'date' utilty, to calculate the phase of the Moon on a particlar day.

How to use tools like curl and xsltproc to retrieve news headlines from the BBC, and display them using the manual viewer

Using a Linux Bash script to generate audio/visual cues for timing paced breathing exercises.

Using Linux command-line utilities to query an on-line database of Internet radio stations.

How to use Bash shell techniques to extract metadata (tags) from various audio file formats.

Using simple file and string handling techniques in the Bash shell.

How to use Bash shell arithmetic to create a simple tide table

How to use tools like curl, sed, and groff to retrieve a weather forecast from the BBC, and format it for the terminal.

Using 'date' and 'timedatectl' to build a utility to help with scheduling meetings in different timezones.