scrcpy:tldr:389e5

The command "scrcpy --record ${filename-mp4}" is used to record the screen of an Android device connected to a computer using scrcpy.

Here's a breakdown of the command:

• "scrcpy" is the name of the tool, which is a display and control utility for Android devices connected to a computer.
• "--record" is an option of scrcpy that enables screen recording.
• "${filename-mp4}" is a placeholder for the desired filename of the recorded video. It could be any name you prefer, just replace "${filename-mp4}" with your desired filename followed by the ".mp4" extension.

When you run this command, scrcpy will start recording the screen of the connected Android device, and the recorded video will be saved with the specified filename in the working directory of your command prompt or terminal.