Master Linux recording commands to protect your work

In daily work and study, we often need to use recording commands to record terminal operations or demonstrate some technical operations. As a Linux user, these recording commands are also essential. In this article, we will introduce several commonly used Linux recording commands so that you can operate more efficiently and conveniently.

Required in advance

If you just want to record your terminal session and play it back in the terminal or share it with others, then you only need a software called: ttyrec. Ubuntu users can install it by running this line of code:

sudo apt-get install ttyrec

If you want to convert the generated video into a gif file so that it can be shared with people who don't use a terminal and can be published to the website, or you just want to make a gif for ease of use without writing commands. Then you need to install two additional packages. The first one is imagemagick, you can install it with the following command:

sudo apt-get install imagemagick

The second software package is: tty2gif.py, visit its project website to download. This package requires the following dependencies to be installed:

sudo apt-get install python-opster

Content recording

To start recording terminal operations, all you need is to type ttyprec and press Enter. This command will run a real-time logging tool in the background. We can stop by typing exit or ctrl d. ttyrec will create a ttyrecord file in the home directory by default.

Playback

Playing back this file is very simple. You just need to open a terminal and use the ttyplay command to open the ttyrecord file. (In this example, we use ttyrecord as the file name, of course, you can also change it to your own file name)

Then you can start playing the file. This video records all operations, including your deletions and modifications. This looks like a self-aware terminal, but the process of executing this command is not just for the system to see, but for better display to people.

Note that the playback of this record is completely controllable. You can click or - to speed up and slow down, or 0 and 1 to pause and resume playback.

Export to GIF

For convenience, we usually convert video records to gif format, and this is very easy to do. Here’s how:

Copy the previously downloaded tty2gif.py file to the same directory as the ttyprecord file (or the video file you named), then open a terminal in this directory and enter the command:

python tty2gif.py typing ttyrecord

If an error occurs, check whether you have installed the python-opster package. If there are still errors, use the following command to eliminate them.

sudo apt-get install xdotool
export WINDOWID=$(xdotool getwindowfocus)

Then repeat this command python tty2gif.py and you will see some more gif files in the ttyrecord directory.

The next step is to integrate all the gif files and package them into one gif file. We do this by using the imagemagick tool. Enter the following command:

convert -delay 25 -loop 0 *.gif example.gif

You can use any file name, I used example.gif. And, you can change this delay and loop time. Enjoy.

In short, the Linux recording command is a very practical tool for us. Through the several commands introduced in this article, I believe you can already master how to use recording commands to record your operations, making your work more efficient and convenient. Whether you're at school or at work, take advantage of these commands to increase your productivity and performance levels.

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