Exercises, examples and other material relating to training module P402. This topic is presented on public course Using Perl on the Web
Perl originated from a requirement to write network-aware scripts, and it's always been a great language for writing both clients and servers. You might wonder if you really need to write such programs these days but, yes, there are times that you want to write test programs against which to run a stanard client or server, and times that you want to provide a specialist tool that talks directly to another network process.
|Articles and tips on this subject||updated|
|3874||Using Perl to read an RSS feed off a web site and extract data - via LWP and XML modules|
Perl is excellent glue-ware ... something I was reminded of towards the end of Friday's Perl Programming Course. A delegate asked me how easy it is to grab an XML resource from the web (such as an RSS feed) and extract data from it. Well - you could write the code yourself, or you could use standard ...
|2047||Small Web Server in Perl|
I would not encourage you to write your own web server in Perl, but I might suggest that you used the http protocol as a convenient intersystem communication protocol ... and that might result in you implementing part of http for the purpose ;-)
With that proviso in mind, I have just added source code ...
Examples from our training material
|dot|| buffering - dotd come out all together|
|dot2|| Buffering - progress bar in dots|
|mcopy|| End of line conversion - moving data file between operating systems|
|miniserver.pl|| Small Web Server in Perl|
|pf1|| Finger client|
|pf3|| Better finger client|
|pt3a|| time and date from a series of hosts|
|pt4|| Using local OS commands to run network processes|
|ptime|| Simple client|
|sts|| Simple Perl time SERVER|
PicturesLearning how to use Perl behind a web site
Some modules are available for download
as a sample of our material or under an Open Training Notes License
for free download from http://www.training-notes.co.uk
Topics covered in this module
A further use of telnet.
Using RFC868 time protocol.
Using the Socket module.
Running network commands directly.
Writing your own simple server.
Example - finger client.
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