HPRC Short Course Introduction to Linux

HPRC Short Course Introduction to Linux

Texas A&M University High Performance Research Computing ? 1

For Assistance...

Website: Email: Telephone: Visit us:

hprc.tamu.edu help@hprc.tamu.edu (979) 845-0219 Henderson Hall, Room 114A

Help us, help you -- we need more info

?Which Cluster ?NetID ?Job ID(s) if any ?Location of your job files, input/output files ?Application used & module(s) loaded if any ?Error messages ?Steps you have taken, so we can reproduce the problem

Texas A&M University High Performance Research Computing ? 2

Course Outline

1 Accessing the System 2 Directories 3 Gedit 4 File Manipulation 5 Passing output & Redirection 6 The Linux file system 7 Environment Variables & $PATH 8 Basic Shell Scripting

Secure shell Our first commands An easy text editor Copy, rename/move & remove Learning about operators Attributes and permissions Storing and retrieving information Making Linux work for you

Texas A&M University High Performance Research Computing ? 3

Your Login Password

? Both State of Texas law and TAMU regulations prohibit the sharing and/or illegal use of computer passwords and accounts;

? Don't write down passwords; ? Don't choose easy to guess/crack passwords; ? Change passwords frequently

Texas A&M University High Performance Research Computing ? 4

1. Accessing the system

? SSH (secure shell)

? The only program allowed for remote access; encrypted communication; freely available for Linux/Unix and Mac OS X hosts;

? For Microsoft Windows PCs, use MobaXterm

? ? You are able to view images and use GUI applications with MobaXterm

? or Putty

?

? You can not view images or use GUI applications with PuTTY

Texas A&M University High Performance Research Computing ? 5

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