Solved

beginner question

Posted on 1998-09-24
2
152 Views
Last Modified: 2013-12-25
I try to use a counter in my HTML page, but it doesn't
work...

I use this script PERL :
--[BEGIN - counter.pl]---------------------------
#!/usr/local/bin/perl -s


$filename="./counter.txt";


if (!open(COUNTER, "$filename"))
  {
    print "couldn't open for read\n;"
  }

else
  {
    $count=<COUNTER>;
    close (COUNTER);
   
    if ($count =~ /\n$/)
      {
      chop($count);
      }
  }

$count++;



if(!open(COUNTER, ">$filename"))
  {
    print "couldn't open for print\n";
  }
else
  {
    print COUNTER "$count";
    close (COUNTER);
  }

print "$count";

--[END - counter.pl]---------------------------
and I use a JavaScript function in my HTML file :

counter(<!C-#exec cgi="/cgi-bin/counter.pl")

this function work fine if I write
counter(23) for exemple. My counter is well display 23.
But when I try with the CGI bellow : Nothing appears !!!

Note, I use CERN HTTP Server on Solaris
0
Comment
Question by:baresse
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 1

Author Comment

by:baresse
ID: 1828782
Edited text of question
0
 
LVL 5

Accepted Solution

by:
b2pi earned 10 total points
ID: 1828783
If I understand you properly, this works fine from the command line,
yet seems to fail when called via the java script?

See that line

$filename="./counter.txt";


??  Well, what is '.' when you're running from the server?  Do you
have write rights? Can you create a file there?  Does the file already
exist? [Hint: Specify the absolute path of the file].

By the way, when you're printing from the script, where does the
output go? [More hints: it goes to never never land].

Try this

open(COUNTER, $filename)
    || die "Content-type: text/html\nUnable to open file: $!";


Also, try running

perldoc chomp

to see a better way of getting around that if statement in the middle
0

Featured Post

Get 15 Days FREE Full-Featured Trial

Benefit from a mission critical IT monitoring with Monitis Premium or get it FREE for your entry level monitoring needs.
-Over 200,000 users
-More than 300,000 websites monitored
-Used in 197 countries
-Recommended by 98% of users

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction This tutorial will give you a fast look what you can do with WhizBase. I expect you already know how to work with HTML at least, and that you understand the basics of the internet and how the internet works. WhizBase is a server-s…
Active Directory replication delay is the cause to many problems.  Here is a super easy script to force Active Directory replication to all sites with by using an elevated PowerShell command prompt, and a tool to verify your changes.
The viewer will learn how to dynamically set the form action using jQuery.
In this seventh video of the Xpdf series, we discuss and demonstrate the PDFfonts utility, which lists all the fonts used in a PDF file. It does this via a command line interface, making it suitable for use in programs, scripts, batch files — any pl…

691 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question