gitHow far is branch behind master

git rev-list --left-right --count main...branch1
# 7         1
# ^         ^
# behind    ahead of
# master    masterctrl + cyoutubegithub

`git` base command	`rev-list` get revisions
`--left-right --count` outputs counts: left for master and right for branch	`main` name of the master branch
`branch1` name of the branch to compare with master

git rev-list --left-right --count main...branch1

7   1