title: Git: how to get a list of all revisions since some commit?
body: <p>Using rev-list, I've figured out how to get a list of all revisions on one branch since some commit. How can I get a list of all revisions on <strong>all</strong> branches since some commit? Let's say the top of my repository looks like the following. <strong>How can I get a list of all commits since bbbbbbb (commits 3, 4, 5, and 6)?</strong> I don't care about the order.</p>
  
  <pre><code>* fffffff 6
  * ddddddd 4
  | * eeeeeee 5
  | * ccccccc 3
  |/  
  * bbbbbbb 2
  * aaaaaaa 1
  </code></pre>
  
  <p>cdhowie's answer is nearly what I need, but it also returns commits from unrelated branches. If I expand the tree to this shape, I don't want to see commit 7 listed.</p>
  
  <pre><code>* 0000000 7
  | * fffffff 6
  | * ddddddd 4
  | | * eeeeeee 5
  | | * ccccccc 3
  | |/  
  | * bbbbbbb 2
  |/  
  * aaaaaaa 1
  </code></pre>