[git] Adding Only Untracked Files

People have suggested piping the output of git ls-files to git add but this is going to fail in cases where there are filenames containing white space or glob characters such as *.

The safe way would be to use:

git ls-files -o --exclude-standard -z | xargs -0 git add

where -z tells git to use \0 line terminators and -0 tells xargs the same. The only disadvantage of this approach is that the -0 option is non-standard, so only some versions of xargs support it.