How to take a screenshot from a video at a random timestamp

Take a screenshot or frame capture of a video, at a random timestamp (within limits of the duration):

SEC=$(ffprobe -i video -show_format -v quiet | sed -n 's/duration=//p' | cut -d '.' -f 1)
START=$(shuf -i 0-$SEC -n 1)
ffmpeg -y -ss $START -i video -frames:v 1 -q:v 25 screencap.jpg -loglevel panic

Links

• How can I make ffmpeg be quieter/less verbose?
• How to extract 1 screenshot for a video with ffmpeg at a given time?
• Random number from a range in a Bash Script
• How to get video duration in seconds?
• Fastest way to take screencaps out of videos
• pyvideothumbnailer
• Fast tool to generate thumbnail video galleries for command line
• Taking screenshots from random frames of a video file [duplicate]