I should have said heavy concurrent i/o utilization by multiple threads. sorry about that

Jason

I have several applications using I/O multiplexing written in Perl, such as:
• a http based queue system (server/client)
• a gateway for a proprietary billing system.
I have tested my simple I/O multiplexing based http server against ab (apachebench), and it turns out that the performance is very good.
I don't see any point for making a claim that Perl is NOT good at this.

You won't use perl for applications on a platform for which it's not available? Surely not! ;-) Well yeah, I suppose I wouldn't consider perl for a CP/M application either. I guess I'll just have to stick with BCPL.

I *do* use perl as part of the build process for my PalmOS apps. There's a nice set of modules (which unfortunately CPAN.pm doesn't like installing) for creating and manipulating Palm databases, so a few lines of perl is enough to slurp data from tha intarweb, parse it, and stuff into databases which my Palm app (written in C) can use.

Surprisingly, one of the areas that I don't use perl much is one which many people seem to think it excels at - one-liners. I'll just use the shell. Here, for example, is how I get a unique list of all the IPs which my mail sewer has refused to talk to today:

grep "connection from" /var/log/exim/mainlog| \
grep "refused$"|awk '{print $6}'|sed 's/\[//;s/\]//'| \
sort|uniq
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