g) Pawsey Unix examples

Owned by Luke Edwards
Last updated: Feb 06, 2018
1 min read

There are many unix commands however when using Pawsey, there are particular commands that are particularly handy.  These commands will be listed in Supercomputing training material however below are some Data specific ones.


screen

If you have a very large amount of data to move to/from Pawsey, running pshell through 'screen' command can be helpful (https://www.gnu.org/software/screen/manual/screen.html)

  • Check if installed ("which screen")
  • Run screen ("screen")
  • New window (“Ctrl-a” “c”)

  • Reattach to Screen ("screen -r")

Note: SSH protocol (Secure Shell) is a method for secure remote login from one computer to another.

Access to Pawsey machines is via ssh
• ssh creates an encrypted tunnel to the remote host.  By default it starts a remote shell.
• ssh can also tunnel graphical programs.
• ssh uses fingerprints to identify computers, so you don't give your password to someone pretending to be the remote host

SSH will be used in Getting Started with Nimbus lesson