Cut video from 29 minutes to the end and save in out file

ffmpeg -ss 00:29:50 -i video.webm -c copy out.webm

ffmpeg -hide_banner -framerate 20 -video_size $(xrandr | awk '/\*/{printf$1}') -f x11grab -i $DISPLAY.0 screenRecording.mp4

• ffmpeg version 4.2.7-0ubuntu0.1

• https://superuser.com/questions/377343/cut-part-from-video-file-from-start-position-to-end-position-with-ffmpeg