visabhishek

#!/bin/bash                                                                                                                                    
drush sqlq "SELECT DISTINCT(SELECT name from users where uid = ur.uid) FROM users_roles AS ur WHERE ur.rid IN (4) LIMIT 50" | while read username;
do
   echo "Updating Password for Users $username"
   drush upwd $username --password='Pass@123'
   # or do whatever with individual element of the array
done

nkgokul

#!/bin/bash                                                                                                                                    
drush sqlq "select type from node_type" | while read content_type;
do
   echo "Changing comment settings for $content_type"
   drush vset comment_default_mode_$content_type 0
   drush vset comment_default_per_page_$content_type 50
   drush vset comment_$content_type 2
   drush vset comment_form_location_$content_type 1
   drush vset comment_preview_$content_type 0
   drush vset comment_subject_field_$content_type 0