Return hostname 1

[blarneyme]

use Sys::Hostname;
$host = hostname;
$conf = "$host_file.txt";
print "$conf\n";

returns .txt

changing the $conf line to:

$conf = '$host_file.txt";

returns $host_file.txt

How do I get $conf to return the actual hostname in $host so it prints realhostname_file.txt ?

 

[blarneyme]

Answer:

$conf = "$host" . "_file.txt";

 

[TrojanWarBlade]

Ah, looks like you got caught by the interpolation seeing "host_file" as a variable.

The first answer is to use curly braces to delimit the variable name thus:

$conf = "${host}_file.txt";

The second (to use your concatenation) is not to use interpolation at all but just to join the two parts thus:

$conf = $host . '_file.txt';

HTH


Trojan.

 

[TrojanWarBlade]

BTW:

While I think of it, if you'd used

use warnings;
use strict;

perl might have offered a clue or two.

Just a thought.




Trojan.

 

[blarneyme]

Thanks. I wasn't aware you could use ${variable} in Perl like you can in ksh.