Comment by masklinn

According to http://www.bitkeeper.com/testdrive:

* The -U option to bk tells it to operate on "user files". That is files that are not part of the BitKeeper metadata

* The modifier x corresponds to "extras", files which Bitkeeper doesn't know about (changed files is c)

* `new` adds files to the repository

* [on commit] the -y option is for changeset comments (~commit messages)

So `bk -Ux new` is `git add <untracked files>`[0] and `bk commit -y"thing"` is `git commit -m "thing"`

[0] aka `git add $(git ls-files -o --exclude-standard)` or `git add -i<RET> <a> <*> <q>`