After installing of new fedora 18 version at work, I was looking unsuccessfully for rc.local. TO modify some typical work routines.

From Fedora documentation

3.2.4. rc.local no longer packaged

The /etc/rc.d/rc.local local customization script is no longer included by default. Administrators who need this functionality merely have to create this file, make it executable, and it will run on boot.

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touch /etc/rc.d/rc.local
chmod +x /etc/rc.d/rc.local