Use hg summary to check the status of my …

Use hg summary to check the status of my files.
Looking for (clean) to make sure the changes are committed and there is nothing to merge.

Example of clean status

> hg summary
parent: 12:267d20bf2b03 tip
 merged rev.tex
branch: default
commit: 20 unknown (clean)
update: (current)

Example when the changed is not committed and there is a merge in the repository.

parent: 8:43cedbe623e7 
 merged rev.tex
branch: default
commit: 1 modified, 20 unknown
update: 2 new changesets, 2 branch heads (merge)