I'd like to see from command line all informations pertaining to a given video file, including length, quality, bitrate, resolution, audio and video formats, number and language of audio streams and subtitles, and so on; the more, the best.
You can use mediainfo to output majority of the information anyone would require of a video file; at least I would imagine so. Simply:
I once had to frequently setup ffmpeg commands in a shell script setup to run while away, and a zenity window made this alot easier as well. I used:
mediainfo "<inputfile>" | zenity --text-info
So then I could hightlight the info and just drag and drop it to nano, on the terminal window directly. Worked great.