Pull git submodules in parallel using GNU parallel

$ parallel -j4 cd {}\; pwd\; git pull :::: <(git submodule status | awk '{print $2}')

Make sure to run this command in your git toplevel directory. Modify `-j4` as you like. You can also run any arbitrary command beside `git pull` in parallel on all of your git submodules.

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by David Winterbottom (codeinthehole.com)

Tags: bash cmd Commands shell scripts