Solved

where did that person come from?

Posted on 1998-08-21

Perl

1 solution

169 Views

Last Modified: 2012-05-04

Can anyone tell me how to access enviroment variables? I am new to this perl stuff and was wanting to access an env var that told me where a person came from (what url).

For extra points, can you also tell me where I can find a definitive list of ALL environment variables that can be accessed with perl scripting?

ta

Comment

Question by:john1998

[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

Join The Community

2 Comments

LVL 4

Expert Comment

by:feenix

ID: 12044401998-08-21

You can access environment variables with $ENV{}-statement. The URL which the user came from can be found in $ENV{'REFERRER_URL'} if the browser sends it.

Accepted Solution

by:gre

gre earned 50 total points

ID: 12044411998-08-21

this will type out your ENV variables and their values:

foreach $key (sort keys %ENV) {
print "$key=ENV{$key}\n";
}

Featured Post

Question has a verified solution.

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

Sorting an array and hash elements in Perl

Article by: Sanjeev

There are many situations when we need to display the data in sorted order. For example: Student details by name or by rank or by total marks etc. If you are working on data driven based projects then you will use sorting techniques very frequently.…

Perl

Downloading Oracle Log Files in AWS RDS

Article by: Doug

Checking the Alert Log in AWS RDS Oracle can be a pain through their user interface. I made a script to download the Alert Log, look for errors, and email me the trace files. In this article I'll describe what I did and share my script.

Validation of Email Addresses with Regular Expressions

Video by: Terry

Explain concepts important to validation of email addresses with regular expressions. Applies to most languages/tools that uses regular expressions. Consider email address RFCs: Look at HTML5 form input element (with type=email) regex pattern: T…