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strange behaviour wget-command in shell-CGI

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Luys

Luys

MIS
Aug 17, 2003
7
NL
Hi all,

I am new to CGI, but do know some shell-programming (unfortunately no perl yet). I created a simple script that uses wget to retrieve dynamic data as a static page. But for some reason the wget command is not executed. Here is a test-script:

#!/bin/sh
echo "Content-type: text/html"
echo
echo
echo "<html><head></head>"
echo "<body>"
echo "<pre>"
/usr/bin/wget /usr/bin/wget --help
echo "</pre>"
echo "</body></html>"

Strange thing is, the 'wget --help' command is executed, while the 'wget ' command is completely ignored (or so it seems). I tried lots of different wget commands, and also simple commands like 'ls' and 'who'. Everything I tried seems to be working, except wget-commands other than 'wget --help'

Any ideas will be appreciated!
Richard
 
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Richard,

The is probably what you're getting caught up on. Some servers, esp corporate, and profit seeking ones, don't allow wget to their server. Try a simple site, and see if you get results.

You might want to look at LWP in Perl, as you can configure the user agent, and a number of other things to dupe the server. If you use a net sniffer you might see what error responses are being sent back to the client

HTH
--Paul

It's important in life to always strike a happy medium, so if you see someone with a crystal ball, and a smile on their face ...
 
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Thanks Paul,

But I forgot to mention that the 'wget command worked fine from the commandline AND it's a server in our LAN...

While typing this message I tried some other things, and it looks like I found the problem.

Stupid me, it's time to smash my head against the wall! I completely forgot that the webserver which is running this CGI is running as nobody, and is not allowed to create a subdir or a file in the specified directory. Furthermore, I forgot that STDERR is NOT send to the webpage...

Thanks for your help anyway, but it was completely my own fault!

Rgds,
Richard
 
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No worries
--Paul

It's important in life to always strike a happy medium, so if you see someone with a crystal ball, and a smile on their face ...
 
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