top - measure memory/processor usage on machine
q or qq - see actively running jobs on cluster
pestat - see individual nodes on cluster and what is running on them or find job numbers - useful for qdel
qdel - delete jobs from torque scheduler - list job numbers followed by space between them ( example - qdel 100134 100145 ... )
lshw - see the hardware details of machine
halt -p now - poweroff the machine immediately