update-all-git-repos

#!/bin/sh
#
# Update all git repos recursively from the current directory
#
find . -type d -name .git | while read dotgitdir; do
	dir="$(dirname "$dotgitdir")"
	echo "Updating $dir"
	pushd "$dir" >/dev/null
	git pull --rebase
	git submodule update --recursive
	popd >/dev/null
done