The Tufts High Performance Compute (HPC) cluster delivers 35,845,920 cpu hours and 59,427,840 gpu hours of free compute time per year to the user community.

Teraflops: 60+ (60+ trillion floating point operations per second) cpu: 4000 cores gpu: 6784 cores Interconnect: 40GB low latency ethernet

For additional information, please contact Research Technology Services at tts-research@tufts.edu

3. Exercise: Working with Shells

Owned by David.Lapointe
Last updated: Apr 06, 2016 by Shawn Doughty (Deactivated)

Try these shell commands at the prompt. Many of commands have extensive additional arguments they can take.

Display the value of the $SHELL environment variable, which stores the pathname of the current shell.


$ echo $SHELL
/bin/bash

 

List the available shells in the system. cat (concatenate) is a standard Linux utilities that concatenates and prints the content of a file to standard output. shells is the name of the file, and /etc/ is the pathname of the directory where this file is stored.

$ cat /etc/shells
/bin/sh
/bin/bash
/sbin/nologin
/bin/tcsh
/bin/csh
/bin/ksh
/bin/zsh
/usr/bin/tmux

 

Find the current date and time with the date command.

$ date
Thu Apr 18 09:52:18 CDT 2013

 

List all of your own current running processes with the ps command (process status). In Linux, each process is associated with a process identification (PID).

$ ps
  PID TTY          TIME CMD
  916 pts/58   00:00:00 bash
 1531 pts/58   00:00:00 ps

 

For additional information, please contact Research Technology Services at tts-research@tufts.edu