Re: Weird behavior of shell variables in git aliases

Thanks a lot for the explanations, I was really wondering about that.

Incidentally, I had a real reason to prefer using the `!echo...` syntax over the `!sh -c 'echo...'` one; I need my users to define the following alias:

    git checkout $1 && git submodule foreach 'git checkout $sha1'

Due to the necessity of single-quoting the `foreach` expression, I couldn't define it with the `!sh -c` syntax. And because of the problems discussed in this thread, I still don't know how to have my users define this alias.

Thanks, D.

P.S. Incidentally, this alias is addressing a pitfall in the use of submodules that I think should not exist in the first place:

If a repo has a submodule, and head 'foo' of the repo has the submodule's HEAD pointing to head 'foo' of its origin, while head 'bar' of the repo has the submodule HEAD pointing to head 'bar' of its origin, checking out bar/foo on the repository leaves the submodule in an outdated state (and `submodule update` doesn't help).