This tutorial covers the PC boot process and the Linux Operating System inititiation of background applications (daemons/services). The sequence, configuration and administration of the Linux boot process is covered. This tutorial is Red Hat and Fedora specific. Other distributions and commercial versions of UNIX often use different run level assignments and/or different script names.
Traditionally, Unix/Linux/POSIX filenames can be almost any sequence of bytes, and their meaning is unassigned. The only real rules are that "/" is always the directory separator, and that filenames can't contain byte 0 (because this is the terminator). Although this is flexible, this creates many unnecessary problems. In particular, this lack of limitations makes it unnecessarily difficult to write correct programs (enabling many security flaws), makes it impossible to consistently and accurately display filenames, causes portability problems, and confuses users. more ....
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