Using the Terminal

Here are some cool things you can do with the terminal.

Copy Files

cp ../HistoryAIToolkit/data/*.qt ./data/

Separate audio from video

First, install FFmpeg if you don’t have it installed yet:

brew install ffmpeg

You’ll see a lot of output from Homebrew. Sit back, relax, and enjoy as it installs FFmpeg and all its dependencies. It may take awhile if you’re on a slow connection.

Once it’s done, you can use the ffmpeg command.

Given an input video ending with .qt, you can type this into the terminal to generate an .mp3 audio file from it:

ffmpeg -i data/2023-10-06_Mat.qt data/2023-10-06_Mat.mp3

Given an input video ending with .mov, you can type this into the terminal to split its audio and save it as a .wav file:

ffmpeg -i input.mov -vn -acodec pcm_s16le -ar 44100 -ac 2 output.wav

List the files in the data directory:

ls -asl