Re: can't exec some CGI scripts
I can't speak off the top of my head to the exec problem you're
having; the -w problem is clear. -w turns on warnings in perl, which are
essentially non-fatal errors regarding programming style and
structure. The "Name %s used only once" warning tells you that the given
variable appears to be either only read or only written to in the
script, but not both, so you may have made a typo. The "Use of
uninitialized value" warning tells you that you've tried to read a
variable or array element that is undefined when you try to read
it; again, it signifies the possibility that your script is trying to
read a variable that has no value.
If your script works passably otherwise, you can *technically* just remove
the -w from the shebang line and you should be fine. However, the Right
Way (tm) is to fix the problems and leave -w in.
Cheers,
Andy Perrin
----------------------------------------------------------------------
Andrew J Perrin - Ph.D. Candidate, UC Berkeley, Dept. of Sociology
Chapel Hill, North Carolina, USA - http://demog.berkeley.edu/~aperrin
aperrin@socrates.berkeley.edu - aperrin@igc.apc.org
On Tue, 20 Feb 2001, John May wrote:
>
>
> On Tue, 20 Feb 2001, Erdmut Pfeifer wrote:
>
> I can execute the CGI scripts from the command line, when I use:
>
> $ perl newspro.cgi
>
> Also, below is a sample of the errors I get in my Apache error_log file
> when I run the scripts from a web browser with the #!/usr/bin/perl -w
> option. BTW, I get these types of errors no matter which script I try to
> run.
>
> [Tue Feb 20 14:58:46 2001] [notice] Apache/1.3.17 (Unix) configured --
> resuming normal operations
> Name "main::SilentBuild" used only once: possible typo at
> /home/www/cgi-bin/newspro/newspro.cgi line 969.
> Name "main::nplang_12Hour" used only once: possible typo at
> /home/www/cgi-bin/newspro/newspro.cgi line 1498.
> Name "main::nplangversion" used only once: possible typo at
> /home/www/cgi-bin/newspro/newspro.cgi line 238.
> Name "main::glossaryon" used only once: possible typo at
> /home/www/cgi-bin/newspro/newspro.cgi line 744.
> Name "main::EnableDailyArchiving" used only once: possible typo at
> /home/www/cgi-bin/newspro/newspro.cgi line 1575.
> Name "main::nplibBuild" used only once: possible typo at
> /home/www/cgi-bin/newspro/newspro.cgi line 235.
> Name "main::nplang_DateFormat" used only once: possible typo at
> /home/www/cgi-bin n/newspro/newspro.cgi line 1501.
> Name "main::JustLoadSubs" used only once: possible typo at
> /home/www/cgi-bin/newspro/newspro.cgi line 113.
> Name "main::ChangedItems" used only once: possible typo at
> /home/www/cgi-bin/newspro/newspro.cgi line 1227.
> Name "main::npconfigversion" used only once: possible typo at
> /home/www/cgi-bin/newspro/newspro.cgi line 232.
> Name "main::FormFieldsModifySize" used only once: possible typo at
> /home/www/cgi-bin/newspro/newspro.cgi line 1133.
> Name "main::ArcHtmlExt" used only once: possible typo at
> /home/www/cgi-bin/newspro/newspro.cgi line 800.
> Name "main::newtime" used only once: possible typo at
> /home/www/cgi-bin/newspro/newspro.cgi line 817.
> Name "main::newsdate" used only once: possible typo at
> /home/www/cgi-bin/newspro/newspro.cgi line 816.
> Name "main::NewsID" used only once: possible typo at
> /home/www/cgi-bin/newspro/newspro.cgi line 761.
> Use of uninitialized value at /home/www/cgi-bin/newspro/newspro.cgi line
> 1277.
> Use of uninitialized value at /home/www/cgi-bin/newspro/newspro.cgi line
> 1277.
> Use of uninitialized value at /home/www/cgi-bin/newspro/newspro.cgi line
> 1277.
>
> > On Tue, Feb 20, 2001 at 11:20:11AM -0500, John May wrote:
> > > I am using Apache 1.3.17 (compiled from source) on Debian Woody. When I
> > > try to exec some CGI scripts, by typeing in the URL, ex.
> > > http://www.cybergeek.org/cgi-bin/newspro/newspro.cgi, I get an an
> > > Internal Server Error with the following error in Apache's error log:
> > >
> > > [Tue Feb 20 08:55:23 2001] [error] (2)No such file or directory: exec of
> > > /home/www/cgi-bin/newspro/newspro.cgi failed
> > >
> > > [Tue Feb 20 08:55:23 2001] [error] [client (ip address)] Premature end
> > > of script headers: /home/www/cgi-bin/newspro/newspro.cgi
> > >
> > > I have made sure that the path to Perl is correct in the scripts and
> > > that the correct permissions are set. I also made sure that my
> > > ScripAlias directory was correct. I can run other scripts, like the
> > > test-cgi script and the printenv script, but not any others. Also if I
> > > add a (-w) to the Perl statement at the begginning of the script, i.e.
> > > #!/usr/bin/perl -w then the script will run, but a whole lot of
> > > debugging information fills up the error logs. I have scoured the
> > > maillist archives for any solution, but came up empty handed. Any help
> > > would be appreciated.
> >
> > Can you run the script normally outside of apache -- it may not do
> > what you want it to do, then, but does it start properly?
> >
> > It might also be useful if you would post the info you get in the error
> > log when using "-w".
> >
> > Erdmut
> >
> >
> > --
> > Erdmut Pfeifer
> > science+computing gmbh
> >
> > -- Bugs come in through open windows. Keep Windows shut! --
> >
>
>
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