Ah, never have truer words been spoken! You'd think I'd've learned that by now... :) Here are the errors I'm seeing:

$ perl makeconfig.pl < host-ip.csv
syntax error at makeconfig.pl line 14, near ") {"
syntax error at makeconfig.pl line 34, near "}"
Execution of makeconfig.pl aborted due to compilation errors.
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And the script as I currently have it. I'm assuming that I've gone overboard with defining variables, among other foibles.

#!/usr/bin/perl
 
use strict;
use warnings;
use autodie;

my $template_file_name="/home/hvanheerden/configtemplate.txt";
my ($ip, $hostname, $location) = split;
my $ofile_name=$hostname . ".txt";
my $TFILE="$template_file_name"



while(<>) {

next if /^#/;

   ($ip, $hostname, $location) 
       = split (/,/);

   open(TFILE, "< $template_file_name") || die "config template file $
+template_file_name: $!\n";
   $ofile_name = $hostname . ".txt";
   open(OFILE, "> /home/hvanheerden/$ofile_name") || die "output confi
+g file $ofile_name: $!\n";

   while (<TFILE>) {

     s/##location##/$location/;
     s/##hostname##/$hostname/;
     s/##ip##/$ip/;


     printf OFILE $_;
   }
}
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Thanks for the help. Err... Please continue to help! Thank you!

I can also add that my .csv now looks like this:

# ip,hostname,location
172.30.240.1,CUSOM-176-SWI-001,1st Fl N IDF
172.30.240.2,CUSOM-176-SWI-002,1st Fl N IDF
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and my config template looks something like this:

hostname ##hostname##
interface Vlan1
 ip address ##ip## 255.255.255.0
snmp-server location ##location##
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or at least, those are the lines from it that contain the variables.

A missing ; and a bit of re-ordering was all to be done. Now it should do the job but a lot of it is implicit and not obvious to the Perl starter. So be careful when expanding on it...

#!/usr/bin/perl
 
use strict;
use warnings;
use autodie;

# usage:  perl makeconfig.pl < host-ip.csv

my $template_file_name="configtemplate.txt";

while(<>) {
        next if /^#/;
        chomp; 
        my ($ip, $hostname, $location) = split (/,/);
        my $ofile_name=$hostname . ".txt";
        
        open(TFILE, "< $template_file_name") || die "config template f
+ile $template_file_name: $!\n";
        $ofile_name = $hostname . ".txt";
        open(OFILE, "> $ofile_name") || die "output config file $ofile
+_name: $!\n";
        
        while (<TFILE>) {
                s/##location##/$location/;
                s/##hostname##/$hostname/;
                s/##ip##/$ip/;
                
                printf OFILE $_;
        }
        close OFILE;
        close TFILE;
}
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Hi, Getting the below error: >perl test.pl syntax error at test.pl line 16, near ") next " syntax error at test.pl line 28, near ") s/##location##/$location/" Execution of test.pl aborted due to compilation errors.

I don't get that error on line 16 when testing the file. It helps us help you much better if you post the exact error messages and also the exact code where you encounter the error.

The problem with the code as given is just a small syntax error caused by a forgotten semicolon in line 10. Maybe you want to learn about how to debug such trivial errors?