This is handy for fixing permissions on wordpress.
The postie plug-in had its php files non-executable.
find . -name *.php -print0 | xargs -0r chmod a+x,og-w
one day I’ll understand xargs, but not today.
see also:
http://postieplugin.com/forcing-an-email-check/
and
http://wordpress.org/support/topic/postie-not-fetching-unless-i-run-manually
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