The exit command terminates a script, just as in a C program. It can also return a value, which is available to the script's parent process. Every command returns an exit status (sometimes referred to as a return status or exit code). A successful command returns a 0, while an unsuccessful one returns a non-zero value that usually can be interpreted as an error code.
How to Cook Pork Ribs Using the Low and Slow Method. Start the charcoal 30 minutes prior to cooking. Prepare the grill for indirect grilling. Youâre aiming for a temperature of 225 to 250-degrees F. Place ribs bone side down on the grill grate or use a rib rack if youâre cooking several racks of ribs. If using a rib rack, place the meat side of the ribs facing the fire. Add the smoking chips and cover the grill. On average, baby back ribs will take about 4 hours while spare ribs need about 5. At the outset, your main goal is to watch and adjust the temperature. The heat will have a tendency to climb up to the 300-degree F range rather quickly.
Place another two layers of foil on top of the rack. Pinch foil together all around the sides to create a package. Repeat with the other rack of ribs, dry rub and foil. Place both baking sheets of ribs into the preheated oven. Bake for 3 1/2 to 4 hours, or until ribs are falling-apart tender. Open up the rib packages, gently transfer the ribs to a cutting board and cut into one or two-rib chunks. Drizzle with barbecue sauce.