rm: forgot scancel examples

rm/slurm/commands.rst

@@ -71,5 +71,13 @@ To look up historical (accounting) data there is ``sacct``. Again, all output co
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     110974              4Gc       936K   00:00:00      0:0
     110976              4Gc       944K   00:00:03      0:0
+
 Deleting
 ++++++++
+
+You can cancel a specific job by running ``scancel JOBID`` or all of
+your jobs at once  with ``scancel -u $USER``. This is a bit
+different to Torque as there is no special **all** placeholder.
+Instead you just ask the system to cancel jobs matching to your
+username. Of course it's not possible to accidentally cancel other
+user's jobs.