FFMPEG record desktop at 60 frames per second

readme

Install ffmpeg or libav-tools.

Change -video_size to match your desktop resolution.

Record your desktop by executing the script:
./record.sh

Record without audio as follows:
./record_no_audio.sh

The output file will be generated in your $HOME directory. It will be a timestamped file with the suffix "_output.mp4", e.g. 105221022017_output.mp4

record.sh

#!/bin/bash
ffmpeg -video_size 1920x1080 -framerate 60 -f x11grab -i :0.0 -f pulse -ac 2 -i default -c:v libx264 -pix_fmt yuv420p -c:a ac3 -ab 320k $HOME/`date +%H%M%d%m%Y`_output.mp4

record_no_audio.sh

#!/bin/bash
ffmpeg -video_size 1920x1080 -framerate 60 -f x11grab -i :0.0 -c:v libx264 -pix_fmt yuv420p $HOME/`date +%H%M%d%m%Y`_output.mp4