In this video I install jpegoptim and show how to use it to recompress a bunch of jpeg files.
Installing MacPorts on a Mac: https://youtu.be/N22Ic6ZRPXI
Install jpegoptim (using Macports)
sudo port install jpegoptim
View jpegoptim Help
jpegoptim --help
View Size of Directory
du -sh
Find Jpeg Files (recursively)
find ./ -iname '*.jpg'
Optimize Jpeg Files (recursively)
find ./ -iname '*.jpg' -exec jpegoptim -p {} \;
Optimize Single Jpeg
jpegoptim -p photo.jpg
Optimize Jpegs in Single Directory
jpegoptim -o *.jpg