I am on a shared server and someone else has installed Drush previously. But as of now Drush does not work and throws the following error.
[root@vps1]# drush /root/.composer/vendor/bin/drush: line 47: which: command not found ERROR: can't find php.
The last thing I can remember was updating PHP (mod_php) to 5.4.36 several days ago. It worked on 5.4.34, but PHP was recompiled during the update. Is this related? What do I need to do to tell drush about this 'new' php?