Git - how to find first commit of specific branch

Question

In following example tree:

A-B-C-D-E (master branch)
    \\
     F-G-H (xxx branch)

I\'m looking for F - the first commit in xxx branch. I

Answer 1

git log master..branch --oneline | tail -1

Where "branch" is your specific branch name. The dot-dot gives you all of the commits that the branch has that master doesn't have. tail -1 returns the last line from the previous output.