If you are like me, you have a whole bunch of projects on your hard disk that you want to update occasionally, but don’t really work actively with. Previously I usually put an update-all.sh file in the root folder of those projects. But in most cases it is possible to use a general approach. I now do it like this:

	#!/bin/bash
	PREFIX="${1%/}"
	if [ -z "$PREFIX" ]; then
	PREFIX="."
	fi
	for D in $PREFIX/*/; do
	pushd "${D}" &> /dev/null
	if [ -d ".git" ]; then
	echo "Updating ${D}"
	if [ -d ".git/svn" ]; then
	git svn rebase
	else
	git pull
	fi
	fi
	popd &> /dev/null
	done

view raw git-pullall.sh hosted with by GitHub

If you pass a path to the script, it updates all subdirectories under that path, else it uses the current directory. And to make it even more convenient, you can add an alias to your .gitconfig file, like so:

pullall = !~/bin/git-pullall.sh

Now you can just use git pullall to update everything in one go. Convenient!