How to reverse a (Unicode) string.

You have written some Perl scripts already, and when somebody asks you how to reverse a string, you'll answer: "That's easy, just call reverse in scalar context".
And of course, you're right - if you're only considering ASCII chars.
But suppose you have an UTF-8 environment: read more.

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Fixing Unix/Linux/POSIX Filenames

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 ....

Cultured Perl: Automating UNIX system administration with Perl.

UNIX system administration, always a thorny problem, is easier with the right tools. In this installment , Teodor presents ideas on the use of Perl to streamline and foolproof system administration. The system configuration engine, cfengine, is an extremely important tool in this context.

Multi-Boot Disk for Machines With AMD Opteron Processors

This article presents step-by-step procedures for loading the Solaris 10 OS on x86 platforms, and one or two 64-bit Linux operating systems, on machines based on 64-bit AMD Opteron processors. Installations were done on generic Opteron-based workstations and confirmed on a Sun Fire V20z server and Sun Java Workstation W1100z and W2100z workstations.

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