How to open files via Terminal I want to open videos and pictures from Terminal. Is there any way to do this?
To open any file from the command line with the default application, just type open followed by the filename/path.

Example:

open ~/Desktop/filename.mp4


Edit: as per Johnny Drama's comment below, if you want to be able to open files in a certain application, put -a followed by the application's name in quotes between open and the file.

Example:

open -a "QuickTime Player" ~/Desktop/filename.mp4


If you need further information about the open command, type man open.