!/usr/bin/perl -w
@files = <*.p12>;
foreach $file(@files) {
    $fileconvert=$file;
    $fileconvert=~s/\.p12//g;
     `openssl pkcs12 -passin pass:$fileconvert -clcerts -nodes -in $file -out $fileconvert.pem\n"`; 
   }
@secondpass = <*.pem>;
foreach $secondpass(@secondpass)  {
    $filename=$secondpass;
open CERT, "<$filename";
        @cert=<CERT>;
    print @cert;
    while (@cert =~s/BEGIN RSA PRIVATE KEY(.*?)END RSA PRIVATE KEY//s) {
        $code = $1;
        print "$code.\n";
    }
}