How can I stage and commit all files, including newly added files, using a single command?

Does

git add -A && git commit -m "Your Message"

count as a "single command"?

Edit based on @thefinnomenon's answer below

To have it as a git alias, use:

git config --global alias.coa "!git add -A && git commit -m"

and commit all files, including new files, with a message with:

git coa "A bunch of horrible changes"

Explanation

From git add documentation:

-A, --all, --no-ignore-removal

Update the index not only where the working tree has a file matching but also where the index already has an entry. This adds, modifies, and removes index entries to match the working tree.

If no <pathspec> is given when -A option is used, all files in the entire working tree are updated (old versions of Git used to limit the update to the current directory and its subdirectories).

This command will add and commit all the modified files, but not newly created files:

git commit -am  "<commit message>"

From man git-commit:

-a, --all
    Tell the command to automatically stage files that have been modified
    and deleted, but new files you have not told Git about are not
    affected.

Not sure why these answers all dance around what I believe to be the right solution but for what it's worth here is what I use:

1. Create an alias:

git config --global alias.coa "!git add -A && git commit -m"

2. Add all files & commit with a message:

git coa "A bunch of horrible changes"

NOTE: coa is short for commit all and can be replaced with anything your heart desires