file writing permission

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

Hi, I'm having problem getting perl script to write a file on the server. At command line, I typed: perl -ws filename.pl And it works fine, and file was created successfully. If I run it in a browser, it will not work. I have set the permissions to the directories so that users can write files to it. Any suggestions on how to solve this problem?

Comment on file writing permission

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Re: file writing permission by friedo (Prior) on Nov 24, 2006 at 03:41 UTC
You'll need to look in your web server's error log to find out what went wrong.	[reply]
Re: file writing permission by madbombX (Hermit) on Nov 24, 2006 at 04:38 UTC
You might also consider showing us the section of code that isn't writing the file. Are you checking the return values of the file I/O functions? eg: `open $fh, '>', "/tmp/blah" or die "File Open Problem: $!";` [download] You could always have the `or` write to a log file somewhere that you are positive the web server has write access to (which is likely to be /tmp on most *nix machines). Also, I don't know what the script is for, but if it is a CGI that returns to the user, you could always debug by adding the following to the beginning of the script: `use CGI::Carp qw(fatalsToBrowser);` [download]	[reply] [d/l] [select]
Re^2: file writing permission by Corion (Patriarch) on Nov 24, 2006 at 07:17 UTC
`open $fh, '>', "/tmp/blah" or die "File Open Problem: $!";` Whenever you `die` because of some error, always include both, the reason and the filename! This makes the error diagnosis and remedy much much faster in my experience: `open $fh, '>', "/tmp/blah" or die "File Open Problem with '/tmp/blah': + $!";` [download]	[reply] [d/l] [select]
Re: file writing permission by alpha (Scribe) on Nov 24, 2006 at 08:01 UTC
You said that you try to run it from browser.. Check if it does return correct headers.	[reply]