Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl: the Markov chain saw
 
PerlMonks  

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??

You don't need ptkdb nor X. I've debugged CGIs using the standard Perl debugger while telnet'd into the web server. Sorry, I don't have the details handy. I had to chmod the pseudo tty that telnet gave me so that the world could read/write it, then modify the CGI script to invoke the Perl debugger and tell it to use that tty as the debugging console.

I don't recall exactly what method I used to tell the Perl debugger to use an alternate tty. You can use the PERLDB_OPTS environment variables and/or the .perldb (or perldb.ini) config file but I suspect either of these will require a trick similar to:

#!/usr/bin/perl -w use strict; BEGIN { if( @ARGV && $ARGV[0] eq "-debugging" ) { shift @ARGV; } else { $ENV{PERLDB_OPTS}= 'TTY=/dev/pty06'; chdir('/home/tye/cgibin') or die "Can't chdir to /home/tye/cgibin: $!\n"; exec( $^X, "-d", $0, "-debugging", @ARGV ); } }
(though I'm not sure $^X will always be sufficient so you might have to hard-code "/usr/bin/perl" there to match your #! line.)

        - tye (but my friends call me "Tye")

In reply to (tye)Re: Debugging a CGI by tye
in thread Debugging a CGI by toma

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or How to display code and escape characters are good places to start.
Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others examining the Monastery: (4)
As of 2023-02-07 18:54 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    I prefer not to run the latest version of Perl because:







    Results (40 votes). Check out past polls.

    Notices?