The last command executed in the function or script determines the exit status. Within a script, an. command may be used to deliver an nnn exit status to the shell (nnn must be an integer in the 0 - 255 range). When a script ends with an exit that has no parameter, the exit status of the script is the exit status of the last command executed in the script (previous to the exit).
Quick Answer. A beef roast is cooked in a 375 degrees Fahrenheit oven for 20 minutes per pound. The exact cooking time depends on the size of the roast. The roast is done when it reaches between 135 and 150 degrees Fahrenheit on a meat thermometer.
It's slow! Slow cooking roast beef can take 4 to 8 hours depending on the size of your roast and how cooked you like it. It also generally won't give a nice brown crust around on the outside of the roast. The temperature just isn't hot enough to brown the meat. This can take 4 to 8 hours. 2  It depends on the size of the roast and how done you like it. 3  Remove it from the oven, and let it stand for 20 minutes. 4  The temperature will keep going up while it stands, so it actually finishes cooking outside the oven.