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Excerpt

Commands Oliver wants to keep track of, at a minimum.

See also

Case: What is the quota allocation assigned to users within a cluster?

show who has logged in (also shows who is currently logged in)

  • last

Shows who is logged in

  • w

show quota netid

  • where netid is accountID

...

  • file (read in vi)
  • in kilobytes

Case: Turning off compute nodes

ssh to the compute node, then:

  • halt -p now

Note: Check jobs aren't running on a compute node by first going to the head node:

  • q or pestat (see below)

iptables

Resource John (Brightworks) recommends (4/24/15), which Oliver found a much more readable version here:

Basic Linux commands

  • exit (exit session)
  • top (activity, live)
  • q, or qq (list nodes and their status; reverset)
  • pestat (node listing of every node with lots of info)
  • psbnodes -ln (list of down nodes)
  • qstatus -f (status of nodes, with details. Just nodes with queued jobs?)
  • ifconfig (show network info)

Version info

  • cat /etc/issue
  • cat /proc/version