Linux file information

# mediainfo 
#http://manpages.ubuntu.com/manpages/bionic/man1/mediainfo.1.html
# mediainfo --help
# mediainfo --Info-Parameters
 .get the duration of video stream:
    mediainfo --Inform="Video;%Duration%"  [inputfile]
 .get the duration of video stream as text:
    mediainfo --Inform="Video;%Duration/String3%"  [inputfile]
 .get the duration of the media file:
    mediainfo --Inform="General;%Duration%" [inputfile]
 .get the duration of audio stream only:
    mediainfo --Inform="Audio;%Duration%" [inputfile]
 .get values of more than one parameter:
    mediainfo --Inform="Video;%Width%,%Height%,%BitRate%,%FrameRate%" [inputfile]
    
# convert
 .clear orientation exif 
    convert #{path} -auto-orient #{path}