SSH_COMMAND='ssh'
cmd=`eval $my_cmd`
PROG_CMD="$program $cmd"
$SSH_COMMAND root@server "(nohup $PROG_CMD) & echo "'$!'" > prog.pid"

ssh root@server (my_program args > output.log 2>&1 & ) & echo $! > prog.pid

$SSH_COMMAND root@server "(nohup $PROG_CMD) & echo "'$!' > prog.pid

$SSH_COMMAND root@server "(nohup $PROG_CMD)" & echo $! > prog.pid