Post install script to run on Wordpress on servers which use mode_cache.

wp_post_install.sh

#!/bin/bash

# 1. ensure .htaccess has correct re-write rule for index.php
if grep -F "$RewriteRule . /index.php [L]" .htaccess; then
    echo "Default WP rewrite rule detected.  \nChanging default WP rewrite rule"
    sed -i 's/RewriteRule\ \. \/index\.php\ \[L\]/RewriteRule\ \^\(\.\*\)\$\ \/index\.php\/\$1\ \[L\]/' .htaccess
fi
if grep -F "$RewriteRule ^(.*)$ /index.php/\$1 [L]" .htaccess; then
    echo "Default WP rewrite rule has been changed.  Preventing WP from writing to .htaccess"
	
    # 2. prevent wordpress from overwriting .htaccess
    chmod 444 .htaccess;
    ls -la .htaccess;
else

    # 3. output error message if command fails
    echo "Correct Rewrite rule not present.  Please edit .htaccess manually and change permissions"
fi