command for checking Apache configuration

I'm looking for a command that checks the validity of the config files in Apache server on both Debian and RHEL distros. I need to do this prior to restart, so there will be no downtime.


Check: http://httpd.apache.org/docs/2.2/programs/apachectl.html

apachectl configtest

Another way is httpd -t. Therefore, it's available in Windows-version of Apache. Check http://httpd.apache.org/docs/2.4/programs/httpd.html