asciinema Quick intro

Record your first session:

   $ asciinema rec
   $ asciinema rec first.cast

Replay it with double speed:

   $ asciinema play -s 2 first.cast

Or with normal speed but with idle time limited to 2 seconds:

   $ asciinema play -i 2 first.cast

upload it:

   $ asciinema upload first.cast

The above uploads it to [asciinema.org](https://asciinema.org), which is a
default [asciinema-server](https://github.com/asciinema/asciinema-server)