Perl/Linux problem.
I recently installed RH 9.0 on my machine with pre-configured Apache and Perl. I made a simple script HELLO WORLD to check the Perl and it gave me a continuous error for 500 Internal Server Error and Premature End of Script Headers. I double checked the perl path, permissions, httpd.conf etc, everything looks fine, ran the script in terminal (perl -wc) and it produced desired output, verified the syntax is ok and there is no problem with this 3 line script, but in the browser it again failed to run. I thought another way of testing it, Using LAN (and samba) I copied a simple script from my Windows machine to Apache and ran that script and amazingly it ran without any problem (both in terminal and mozilla) So, what I have assumed that there must be some problem with scripts that I am writing in the Linux environment. I am using text editor of Linux (gedit) for saving the scripts. I am at a loss now as what I am doing wrong. The simple scripts like 'Hello world' written in gedit failed to run (in browser only) but a bit complex script imported from Windows XP is runing smoothly? Do I need to change the text editor for Linux, if yes, what are the recommendations? Thanks for any input. Sara.
RE: Perl/Linux problem.
On Thu, 11 Sep 2003 15:37:05 +0500, Sara [EMAIL PROTECTED] wrote: I recently installed RH 9.0 on my machine with pre-configured Apache and Perl. I made a simple script HELLO WORLD to check the Perl and it gave me a continuous error for 500 Internal Server Error and Premature End of Script Headers. I double checked the perl path, permissions, httpd.conf etc, everything looks fine, ran the script in terminal (perl -wc) and it produced desired output, verified the syntax is ok and there is no problem with this 3 line script, but in the browser it again failed to run. I thought another way of testing it, Using LAN (and samba) I copied a simple script from my Windows machine to Apache and ran that script and amazingly it ran without any problem (both in terminal and mozilla) So, what I have assumed that there must be some problem with scripts that I am writing in the Linux environment. I am using text editor of Linux (gedit) for saving the scripts. I am at a loss now as what I am doing wrong. The simple scripts like 'Hello world' written in gedit failed to run (in browser only) but a bit complex script imported from Windows XP is runing smoothly? Do I need to change the text editor for Linux, if yes, what are the recommendations? Thanks for any input. What does the Apache error log have in it? Usually that is the best way to tell exactly waht the error is. Without that all the claims you make to checking everything are suspect http://danconia.org -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Perl/Linux problem.
Apache Error Log: premature end of script headers Thanks, Sara. - Original Message - From: Wiggins d'Anconia [EMAIL PROTECTED] To: Sara [EMAIL PROTECTED]; beginperl [EMAIL PROTECTED] Sent: Friday, September 12, 2003 3:45 AM Subject: RE: Perl/Linux problem. : : : On Thu, 11 Sep 2003 15:37:05 +0500, Sara [EMAIL PROTECTED] wrote: : : I recently installed RH 9.0 on my machine with pre-configured Apache and Perl. : : I made a simple script HELLO WORLD to check the Perl and it gave me a continuous error for 500 Internal Server Error and Premature End of Script Headers. : : I double checked the perl path, permissions, httpd.conf etc, everything looks fine, ran the script in terminal (perl -wc) and it produced desired output, verified the syntax is ok and there is no problem with this 3 line script, but in the browser it again failed to run. : : I thought another way of testing it, Using LAN (and samba) I copied a simple script from my Windows machine to Apache and ran that script and amazingly it ran without any problem (both in terminal and mozilla) : : So, what I have assumed that there must be some problem with scripts that I am writing in the Linux environment. I am using text editor of Linux (gedit) for saving the scripts. I am at a loss now as what I am doing wrong. The simple scripts like 'Hello world' written in gedit failed to run (in browser only) but a bit complex script imported from Windows XP is runing smoothly? : : Do I need to change the text editor for Linux, if yes, what are the recommendations? : : Thanks for any input. : : : What does the Apache error log have in it? Usually that is the best way to tell exactly waht the error is. : : Without that all the claims you make to checking everything are suspect : : http://danconia.org -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Perl/Linux problem.
Yep, I did that, tried every single option to remove this premature end of script headers. Do you think it has to do something with 'gedit' text editor? because I am scripting in this editor for the very first time. The scripts copied from Window XP machine have no problems at all, runing smoothly, only those are producing error which I am writing in the Linux machine. Why? use CGI qw(header); use CGI::Carp qw(fatalsToBrowser); print header; print Hello world; - with CGI.pm $q-print($q-header( type = 'text/html') -- and simply print Content-Type: text/html\n; print Hello World\n; -- Thanks, Sara. - Original Message - From: drieux [EMAIL PROTECTED] To: cgi cgi-list [EMAIL PROTECTED] Sent: Friday, September 12, 2003 4:31 AM Subject: Re: Perl/Linux problem. : : Sara, : : Wiggins is right, one of the questions is what exactly : did the Apache Error Log say was it's chief complaint. : : The 'premature end of script headers' suggest that your : output does not have a content-type or there is : CRLF separating them. : : eg: : [jeeves: 45:] test_cgi GET simple.cgi : Content-Type: text/plain : hello World : [jeeves: 46:] : : which is not a separation from the header and the body: : : [jeeves: 47:] test_cgi GET simple.cgi : Content-Type: text/plain : : hello World : [jeeves: 48:] : : The script for that is at the end. : : Excuse me while I help adjust Wiggins Hair : : On Thursday, Sep 11, 2003, at 15:45 US/Pacific, Wiggins d'Anconia wrote: : [..] : : Without that all the claims you make to checking everything are : suspect : : bad hair day there wiggins? : : THWACK! THWACK! THWACK : : did that help loosen up the dandruf. : : ciao : drieux : : --- : the simple code: : ### #!/usr/bin/perl -w : ### use strict; : ### : ### our $CRLF = \015\012; # \r\n is not portable : ### my $type = text/plain; : ### print Content-Type: $type . $CRLF . $CRLF . hello World : : : : -- : To unsubscribe, e-mail: [EMAIL PROTECTED] : For additional commands, e-mail: [EMAIL PROTECTED] : -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Perl/Linux problem.
Sara wrote:
Apache Error Log: premature end of script headers
[snip]
output, verified the syntax is ok and there is no problem with this 3 line
script, but in the browser it again failed to run.
since it's only a 3 liner, can you post it?
david
--
$_=q,015001450154015401570040016701570162015401440041,,*,=*|=*_,split+local$;
map{~$_1{$,=1,[EMAIL PROTECTED]||3])=~}}0..s~.~~g-1;*_=*#,
goto=print+eval
--
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
Re: Perl/Linux problem.
On Thursday, Sep 11, 2003, at 06:05 US/Pacific, Sara wrote: [..] and simply print Content-Type: text/html\n; print Hello World\n; that form will NOT have the separator and I expect you see something like: [..] : [jeeves: 45:] test_cgi GET simple.cgi : Content-Type: text/plain : hello World : [jeeves: 46:] which is NOT a correct message to send back to the web-server. You will need to have a 'blank line' between the Content-Type and the 'hello world'. but the: #!/usr/bin/perl -w use strict; use CGI qw(header); print header; print Hello world; should work since the CGI::header() will put the additional CRLF in play and separate them... You do have the #! line with the -w flag set? ciao drieux --- -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Perl/Linux problem.
A cgi hello world script must have the headers in it. For example, #!/usr/bin/perl print Content-Type: Text/HTML\n\n; print Hello World; -Original Message- From: Sara [mailto:[EMAIL PROTECTED] Sent: Thursday, September 11, 2003 5:37 AM To: beginperl Subject: Perl/Linux problem. I recently installed RH 9.0 on my machine with pre-configured Apache and Perl. I made a simple script HELLO WORLD to check the Perl and it gave me a continuous error for 500 Internal Server Error and Premature End of Script Headers. I double checked the perl path, permissions, httpd.conf etc, everything looks fine, ran the script in terminal (perl -wc) and it produced desired output, verified the syntax is ok and there is no problem with this 3 line script, but in the browser it again failed to run. I thought another way of testing it, Using LAN (and samba) I copied a simple script from my Windows machine to Apache and ran that script and amazingly it ran without any problem (both in terminal and mozilla) So, what I have assumed that there must be some problem with scripts that I am writing in the Linux environment. I am using text editor of Linux (gedit) for saving the scripts. I am at a loss now as what I am doing wrong. The simple scripts like 'Hello world' written in gedit failed to run (in browser only) but a bit complex script imported from Windows XP is runing smoothly? Do I need to change the text editor for Linux, if yes, what are the recommendations? Thanks for any input. Sara. -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Perl/Linux problem.
Sara wrote:
Yep, I did that, tried every single option to remove this premature end of
script headers.
Do you think it has to do something with 'gedit' text editor? because I am
scripting in this editor for the very first time.
The scripts copied from Window XP machine have no problems at all, runing
smoothly, only those are producing error which I am writing in the Linux
machine. Why?
use CGI qw(header);
use CGI::Carp qw(fatalsToBrowser);
print header;
print Hello world;
this looks fine. you should lose the '' sign because you are passing @_ to
header implicitly.
-
with CGI.pm
$q-print($q-header( type = 'text/html')
not sure where you declare $q so i am not going to comment on it.
--
and simply
print Content-Type: text/html\n;
print Hello World\n;
this is wrong. see Drieux's previous message for reason.
chances are that when you move (you said you copied the script from a
windows xp machine and then work on it in gedit?) the script from windows
to linux, your script is carrying over the \r character. gedit won't show
that to you. try:
[panda]$ head -1 script.cgi | od -c
and see if you see any '\r' character anywhere. if you do, that's probably
the cause of the problem. remove those characters with:
[panda]$ perl -i -pe 's/\r//' script.cgi
and then run your script again.
david
--
$_=q,015001450154015401570040016701570162015401440041,,*,=*|=*_,split+local$;
map{~$_1{$,=1,[EMAIL PROTECTED]||3])=~}}0..s~.~~g-1;*_=*#,
goto=print+eval
--
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
