For this command, you'll require a program called exiftool. This tutorial is designed for use on the command line for most of the mainstream Linux distributions, not for Windows or Mac systems.
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