You can also use the she bangs (!#) for manipulation the enviroment. For example assume you want to create a particular enviroment for you script if you use
#!/usr/bin/perl
foreach (keys %ENV){
   print $_ . " " . $ENV{$_}."\n";
}

[download]

You obtain the enviroment from which you run the script.
If you use:
#!/usr/bin/env -i perl
foreach (keys %ENV){
   print $_ . " " . $ENV{$_}."\n";
}

[download]

You obtain nothing.
see info coreutils env

In reply to enviroment and Shebangs by Luca Benini
in thread Perl Directive by Echo Kilo

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