perl pack equivalent in lua

[baggins]

Hi,

I am trying to convert a perl script to lua and ran into the pack command.
Simplified, this is what's in the script:

Code:

#!/usr/bin/perl -l

$data = "00990102";
$checksum = 49;
    my $command = pack("H*","07F0" . $data . $checksum . "070F");
print $command;

This results in :

Code:

./test.pl |od -x --endian big
0000000 07f0 0099 0102 4907 0f0a

How can I achieve this in lua?
The perl script also uses the unpack command...

Thanks for your help.