sudo !! - run the previous command as super user

by picockpit 3 years ago

GNU/Linux ◆ xterm ◆ bash 132 views

Frequently you’ll find yourself forgetting sudo before a command which needs to be run as root (installing packages, for example). sudo !! makes your life easier by simply running the previous command as root.

Part of our compilation of “Ultimate List of unusual but really useful Linux shell commands”, which you can check out here:

https://picockpit.com/raspberry-pi/ultimate-list-of-unusual-but-really-useful-linux-shell-commands/

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You can download this recording in asciicast v2 format, as a .cast file.

Download

Replay in terminal

You can replay the downloaded recording in your terminal using the asciinema play command:

asciinema play 377538.cast

If you don't have asciinema CLI installed then see installation instructions.

Use with stand-alone player on your website

Download asciinema player from the releases page (you only need .js and .css file), then use it like this:

<!DOCTYPE html>
<html>
<head>
  <link rel="stylesheet" type="text/css" href="asciinema-player.css" />
</head>
<body>
  <div id="player"></div>
  <script src="asciinema-player.min.js"></script>
  <script>
    AsciinemaPlayer.create(
      '/assets/377538.cast',
      document.getElementById('player'),
      { cols: 71, rows: 18 }
    );
  </script>
</body>
</html>

See asciinema player quick-start guide for full usage instructions.

While this site doesn't provide GIF conversion at the moment, you can still do it yourself with the help of asciinema GIF generator utility - agg.

Once you have it installed, generate a GIF with the following command:

agg https://asciinema.org/a/377538 demo.gif

Or, if you already downloaded the recording file:

agg demo.cast demo.gif

Check agg --help for all available options. You can change font family and size, select color theme, adjust speed and more.

See agg manual for full usage instructions.