Help: branches
hg branches [-ac]
list repository named branches
List the repository's named branches, indicating which ones are inactive.
If -c/--closed is specified, also list branches which have been marked
closed (see "hg commit --close-branch").
If -a/--active is specified, only show active branches. A branch is
considered active if it contains repository heads.
Use the command "hg update" to switch to an existing branch.
Returns 0.
options:
-a --active show only branches that have unmerged heads
-c --closed show normal and closed branches
use "hg -v help branches" to show more info