The command line environment in the High Performance Computing (HPC) systems is referred to as the Shell.

The default user shell on the HPC systems is bash. This is a command interpreter that provides the interface between the user and the system.

When you log in, you will see:

  • A short message which may include important notices, particularly the dates of scheduled service days
  • A list of your research projects
  • The default scratch directory location, as set in the environment variable SCRATCHDIR
  • The default temporary directory location, as set in the environment variable TMPDIR

The display is very similar on both ALICE and SPECTRE.

Last login: Wed Mar 18 07:39:12 2015 from

                  Welcome to the ALICE HPC service

 ALICE documentation can be found at

 Contact to report problems. Please mention
 ALICE in your email.

 *** Upcoming Service Days ***

   Wed 08 April 2015
Wed 20 May 2015
Wed 01 July 2015
Wed 29 July 2015
Wed 26 August 2015
Wed 23 September 2015
 *********************************************   You are in the following research projects:          pilot (ID 0002)          swift (ID 0009)          wtcc  (ID 0011)   Default SCRATCHDIR is /scratch/pilot/ljg2
Default TMPDIR is /scratch/pilot/tmp

 ********************************************* ljg2@alice02:~>

The session may start on either of the two login nodes (alice01 or alice02) on ALICE or one of the six login nodes on SPECTRE (spectre01,...., spectre06).

Find out more

If you need help using the shell, you can attend the Linux Introduction training course.

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