I executed a command:
nice --19 sleep 5 and hoped to get back a status as to whether or not I was allowed to use a negative priority, since on Windows, anyone in the Admin group can set a priority, with the above command running sleep at 'High' priority, but on linux:
nice --19 sleep 1
nice --19 sleep 1 nice: cannot set niceness: Permission denied
echo $?
0 nice has an error setting the priority, but doesn't set any status in the return code. Shouldn't nice's exit value be something like EPERM if it couldn't set the priority -- whether or not it executed the command... Otherwise, how do you tell if the resetting of the priority worked or failed?
