'git remote set-head' <name> [-a | -d | <branch>]
'git remote show' [-n] <name>
'git remote prune' [-n | --dry-run] <name>
-'git remote update' [group]
+'git remote update' [-p | --prune] [group | remote]...
DESCRIPTION
-----------
referenced by <name>, but are still locally available in
"remotes/<name>".
+
-With `--dry-run` option, report what branches will be pruned, but do no
+With `--dry-run` option, report what branches will be pruned, but do not
actually prune them.
'update'::
Fetch updates for a named set of remotes in the repository as defined by
remotes.<group>. If a named group is not specified on the command line,
-the configuration parameter remotes.default will get used; if
+the configuration parameter remotes.default will be used; if
remotes.default is not defined, all remotes which do not have the
configuration parameter remote.<name>.skipDefaultUpdate set to true will
be updated. (See linkgit:git-config[1]).
++
+With `--prune` option, prune all the remotes that are updated.
DISCUSSION