asciinema

asciinema is a command-line tool for recording terminal sessions.

Unlike typical screen recording software, which records visual output of a screen into a heavyweight video files (.mp4, .mov), asciinema recorder runs inside a terminal, capturing terminal session output into a lightweight recording files in the asciicast format (.cast).

The recordings can be replayed in a terminal, embedded on a web page with the asciinema player, or published to an asciinema server, such as asciinema.org, for further sharing.

Typical use cases include creating tutorials, demonstrating command-line tools, and sharing reproducible bug reports.

Learn more at https://asciinema.org/