Is there a command that will return the version of perl?

[Guy]

I am writing a perl script for someone. They gave me the address to one of
their unix servers and they created a couple of directories for me including
a cgi-bin where I can save my .cgi files (actually I was used to .pl files
but I guess they have to be .cgi on this server).

I upload my files to the server using FTP.
I can telnet to it but I think the only access I have is to my directories.

The server is about 3 hours away from here.

I was wondering, if my perl script can detect what version of perl it's
running on. whether it's perl 5.004, 5.6, or whatever.

Or is there an ENV value that I can pick up on it.

Thanks for all,

Guy Doucet

 

[Sam Holden]

I was wondering, if my perl script can detect what version of perl it's
running on. whether it's perl 5.004, 5.6, or whatever.

perldoc perlvar

Particularly the descriptions of the $] and $^V variables.

 

[William Herrera]

I am writing a perl script for someone. They gave me the address to one of
their unix servers and they created a couple of directories for me including
a cgi-bin where I can save my .cgi files (actually I was used to .pl files
but I guess they have to be .cgi on this server).

I upload my files to the server using FTP.
I can telnet to it but I think the only access I have is to my directories.

The server is about 3 hours away from here.

I was wondering, if my perl script can detect what version of perl it's
running on. whether it's perl 5.004, 5.6, or whatever.

Or is there an ENV value that I can pick up on it.

Thanks for all,

Guy Doucet

I use this one once in a while. I don't know who write it originally (anybody
else know)? I only modified it a little.


<<<<<<<<<<<<<
#!/usr/bin/perl
## printenv -- demo CGI program which prints the cgi environment

use strict;
use CGI qw/:standard/;
use CGI::Carp 'fatalsToBrowser';

my $q = new CGI;
my $var;
my $val;

print $q->header, $q->start_html;

foreach $var (sort(keys(%ENV))) {
$val = $ENV{$var};
$val =~ s|\n|\\n|g;
$val =~ s|"|\\"|g;
print $q->p("${var}=\"${val}\"\n");
}

print $q->p(`perl -v`);

print $q->end_html;

<<<<<<<<<<<<<

 

[Jürgen Exner]

Guy wrote:
What about a simple "perl -v"?
[...]

I was wondering, if my perl script can detect what version of perl
it's running on. whether it's perl 5.004, 5.6, or whatever.

Well, you can always call "perl -v" from a Perl script using backticks to
capture the output..

jue

 

[Gregory Toomey]

It was a dark and stormy night, and Guy managed to scribble:

I am writing a perl script for someone. They gave me the address to one of
their unix servers and they created a couple of directories for me
including a cgi-bin where I can save my .cgi files (actually I was used to
.pl files but I guess they have to be .cgi on this server).

I upload my files to the server using FTP.
I can telnet to it but I think the only access I have is to my
directories.

The server is about 3 hours away from here.

I was wondering, if my perl script can detect what version of perl it's
running on. whether it's perl 5.004, 5.6, or whatever.

Or is there an ENV value that I can pick up on it.

Thanks for all,

Guy Doucet

$] contains the version number.
print $];

For a full list of special variables see http://www.rexswain.com/perl5.html

gtoomey

 

[Iain Chalmers]

I was wondering, if my perl script can detect what version of perl it's
running on. whether it's perl 5.004, 5.6, or whatever.

$] contains the version number.
print $];

For a full list of special variables see http://www.rexswain.com/perl5.html

Or even (from a command line):

perldoc perlvar

it magically works even without a net connection!



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