Line 3 – We’re using a "for loop" for this Bash file that has two components. First you identify which files you’ll process. The command shown on line 3 identifies these as files with an .mp4 ...

With a copy safely tucked away, open the run.sh file by right-clicking on it and selecting Text Editor. Press Ctrl-F on your keyboard, and enter 1.8.9 in the text field.