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August 2001
Back Issue Cover
Let There Be Jabber
Jabber is about more than Instant Messaging and chat. It is emerging as a
Linux on Super Chips
What do Intel and AMD have planned for Linux? And where does Transmeta fit
Linux Chameleon: An Interview with Dirk Hohndel
Dirk Hohndel, SuSE's CTO, shares his thoughts on the differences between the
Coping with Traffic
As the load on network services increases, you need to look for an
Shell Scripts with Multiple Arguments
In a business or personal relationship, having multiple arguments is generally unpleasant and therefore to be avoided. However, in the case of the Linux shell, having multiple arguments is downright handy. Of course, in the Linux world, the word argument does not refer to a dispute; instead, it refers to a word appearing on the command line following the name of a program or script. Shell scripts that process multiple arguments afford economy and ease of use; you can simply type a command name once and have that command operate on an entire series of arguments. So this month we'll look at incorporating this capability into a home-brew script.
Taking the "Free" Out of Open Source
In 1998, I was among the five-person group that coined the term "open source" (the others being Todd Anderson, Chris Peterson, Larry Augustin, and Eric Raymond). The five of us were brought together after Netscape decided to make their browser free software. Our goals were twofold: see what we could do to make sure that Netscape was successful with their free software project, and do what we could to take advantage of the publicity surrounding the Netscape event to make Linux successful.
More Mail Filtering with procmail
Welcome to the fourth and final installment of our look at administering electronic mail. Last month, we began talking about procmail, a powerful general purpose mail-filtering facility, and its ability to sort (and possibly reject) incoming messages based on any criteria you desire. This month we're going to look at some more advanced uses of procmail, such as identifying spam messages and scanning incoming mail for viruses.
Time Functions
Every now and then, you'll find that in the midst of an application, you really need to know the time from the system clock. Even more likely, you need to have your application wait for a specific amount of time. Linux's timing functions are relatively straightforward; however, most people overlook them until they need to use one in an application.
Regular Expressions in Perl
One of the things that distinguishes Perl as a powerful and practical tool in the Linux toolbox is its ability to wrangle text in interesting ways that makes it seem effortless. A majority of that ability can be attributed to Perl's very powerful regular expressions. Regular expressions are nothing new. I was using them with Unix tools in 1977, and I suspect they go back even further than that. But Perl continues to push the envelope of how regular expressions work; so much so that the GNU project includes a "perl-compatible-regular-expressions" library (PCRE) so that other tools can catch up to Perl!
IP Aliasing, Virtual Memory, fuser and strobe Commands
How do I get multiple IP addresses on a single network card?
Reviews
Power Your Site with Dell's PowerApp.web 120
And Now For Something Completely Different...
One nice thing about Linux -- it's never boring. If the party ever starts to get slow, you can always count on something happening to liven things up. In that vein, I guess it's our turn here at Linux Magazine to add to the excitement.
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