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.
When the ribs are fork tender, all you need to do is remove them from the foil (save those juices for stock or soup later!) and put them on a baking tray. If your ribs are about 3 lbs, theyâll take about 3 hours 15 minutes and a 4 lb rack will take closer to 4 1/2 hours.Roughly speaking, they need to have at least 1 hour in the oven per pound, with about 15 â 30 minutes extra to make sure theyâre super tender. Preheat the oven to 225F. 2  Flip the ribs so that they are laying meat side down on a cutting board. 3  Use a sharp knife and slide it under the white membrane on the back of the ribs so that the knife is between the meat and membrane.