Pretty much the idea, but you seem a little confused by variables. Lightly edited (changed to a print statement to protect my innocent file names), here is your code: #!/usr/bin/perl
use strict;
use warnings;
dir('.');
sub dir {
opendir( DIR, shift );
my @list_of_files = readdir(DIR);
foreach (@list_of_files) {
if (-d $_) {
dir($_) if $_ !~ /^\.\.?$/;
}
else {
print $_," would become \L$_,\n";
}
}
}
Things to note:
- If you mean to use a variable as a parameter, just do it, don't embed it in quotes
- Your use of $_[0] isn't needed, easier way to do the same is shown
- Post conditions and regexs are your friend, use them and they will reward you!
–hsm
"Never try to teach a pig to sing…it wastes your time and it annoys the pig."
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