Not able to update module via drush I am trying to update a module via drush. Referring this link

[root@localhost d7]# drush update
The drush command 'update' could not be found.  Run `drush cache-clear drush` to clear the commandfile cache if you have    [error]
installed new extensions.


But it is giving error that 'update' command could not be found. Can anybody help me with this?
Update all update available modules other than locked modules.

drush pm-update

or

Update specified module only.

drush up 'module-name'