Local drush stops working after changing files and folder permissions

I changed the files and folder permissions with the following commands.

find . -type f -print0 | xargs -0 chmod 0644 find . -type d -print0 | xargs -0 chmod 0755 

I can’t run Drush commands anymore, unless I change file permissions back to 777. When I run drush cr, for example, I get this error.

PHP Warning: pcntl_exec(): Error has occurred: (errno 13) Permission denied in /usr/local/bin/drush-8/vendor/drush/drush/includes/startup.inc on line 415
Error has occurred executing the Drush script found at /data/websites/virtualmax.ca/public_html/vendor/drush/drush/drush (errno 13) Permission denied

Is there a certain permission required to run Drush commands?

This article was republished from its original source.
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