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Useful CLI commands

Video to MP3

This command extracts the audio from a video file and puts it in a MP3 file. Ffmpeg automatically works out the right codecs to use from the output file extention, in this case it's MP3.


If you wish to do the same with ann OGG file, you have to specificy that you want audio only, you can do this with the -vn argument.

ffmpeg -i VIDEOFILE -vn OUTPUTFILE.ogg

Strip JPEG metadata

For this command, you'll require a program called exiftool.

On Ubuntu-based distros: sudo apt install libimage-exiftool-perl
On Arch-based distros: sudo pacman -S perl-image-exiftool

Then use the following command to strip the metadata. INPUTFILE can include *.* or *.jpg as well as a specified file. The original, unmodified files will be renamed and not overwritten.

exiftool -all= INPUTFILE