exec returns no output?

hi all, i've searched and racked my brains, checked config files and all sorts but cannot work out why the following command would give me an empty array (and certainly not actually perform the requested command...) exec('scp -v -i /id_dsa file.txt user@server.com:/target/dir/', $argh); print_r($argh); I can only surmise there is some setting todo with ssh/scp that im unaware of? any ideas welcomed, thanks! -- Nick Wilson http://performancing.com/user/1