Adding git.md

articles/wiki/git.md

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+**This document is unfinished, and in draft state**
+
+# Git Crash Course
+
+Git can take some getting used to, but once you've mastered a few of the operations, it really begins to make sense.
+
+## Common Workflow
+
+A common workflow goes like this:
+
+1. Clone Repo
+2. Create a *feature branch*
+3. Switch to your feature branch
+4. Make changes
+5. Ask for a merge/merge into master
+6. Push to your origin
+
+### Clone Repo
+
+To clone a repo, you use the git clone command, ie
+
+```
+git clone https://tildegit.org/thunix/ansible
+```
+
+This makes a local copy of the code repo.  Whatever changes you make here, nobody else sees what you did, until you *commit* and then *push*.
+
+### Create Feature Branch
+
+You usually don't want to work right on the *master* branch, until you're ready to push the code live.  So, to make a new feature branch, try this:
+
+```
+git branch -v
+```
+
+This will show you what branches you currently have.  You probably only have one right now:  *master*.  Let's make a new one:
+
+```
+git checkout -b UpdatingKey
+```
+
+Now do look at your branches again:
+
+```
+git branch -v
+```
+
+You'll see you know have *master* and *UpdatingKey*.  You'll see there's an asterisk next to *UpdatingKey*.  This means that is the branch you're currently working on.
+
+### Make Changes
+
+Let's make some changes in your new feature branch.
+
+```
+touch mykey.asc
+git status
+```
+
+You'll see there is a file *mykey.asc* which says it's not currently tracked.  Let's add the file:
+
+```
+git add mykey.asc
+git status
+```
+
+You should see there's a new file to commit.  Let's do that:
+
+```
+git commit -am 'Adding my key'
+```
+
+