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![Page 1: Introduction to Unix/Linux ICN Summer Institute Jackson State University June 16, 2009 Mississippi Center for Supercomputing Research Jason Hale & Susan.](https://reader035.fdocuments.in/reader035/viewer/2022081519/56649f335503460f94c4f6d0/html5/thumbnails/1.jpg)
Introduction to Unix/Linux
ICN Summer InstituteJackson State University
June 16, 2009
Mississippi Center for Supercomputing Research
Jason Hale & Susan Lukose, Ph.D.
![Page 2: Introduction to Unix/Linux ICN Summer Institute Jackson State University June 16, 2009 Mississippi Center for Supercomputing Research Jason Hale & Susan.](https://reader035.fdocuments.in/reader035/viewer/2022081519/56649f335503460f94c4f6d0/html5/thumbnails/2.jpg)
Unix is an Operating System
An O/S manages access to the resources of a computer.
O/S host applications, shielding them from the hardware.
Other popular operating systems:Windows XP, Windows Vista, MAC OS X
Unix looks more like DOS than Windows
![Page 3: Introduction to Unix/Linux ICN Summer Institute Jackson State University June 16, 2009 Mississippi Center for Supercomputing Research Jason Hale & Susan.](https://reader035.fdocuments.in/reader035/viewer/2022081519/56649f335503460f94c4f6d0/html5/thumbnails/3.jpg)
Common Flavors of UnixIBM’s AIX
Hewlett Packard’s HP-UX.
Sun’s Solaris
SGI’s IRIX
Apple’s MAC OS X
Unix Variants: Linux, BSD, …
![Page 4: Introduction to Unix/Linux ICN Summer Institute Jackson State University June 16, 2009 Mississippi Center for Supercomputing Research Jason Hale & Susan.](https://reader035.fdocuments.in/reader035/viewer/2022081519/56649f335503460f94c4f6d0/html5/thumbnails/4.jpg)
Why Learn Unix/Linux?
Unix/Linux commonly used on computer “servers”:Web serversDatabase serversSupercomputers/Clusters
Over 50% of servers in corporations run Unix or Linux
A little Unix experience goes a long way, on the job, and looking for a job
![Page 5: Introduction to Unix/Linux ICN Summer Institute Jackson State University June 16, 2009 Mississippi Center for Supercomputing Research Jason Hale & Susan.](https://reader035.fdocuments.in/reader035/viewer/2022081519/56649f335503460f94c4f6d0/html5/thumbnails/5.jpg)
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Why Learn Unix/Linux?
At UM/MCSR:TO RUN COMPUTATIONAL CHEM APPS!SAS is installed on UM’s Research Server: willow
- more disk space than on your PC’s- run one calculation for several days
Matlab is installed on willow.Mathematica on mimosa cluster
for calculations too big for your PC or MAC
Student programming assignments may be completed on MCSR/UM systems
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Distributions of Linux
• Red Hat Enterprise Linux• Fedora• SUSE Linux Enterprise• openSUSE• Debian GNU/Linux• Ubuntu• Mandriva Linux• Slackware Linux • Gentoo
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Components of Unix
Shells Kernel
Shells
System Utilities
End-UserUtilities
Developmenttools
Docs
Commands
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MCSR Unix Workshops Will Cover:
Shells Kernel
Shells
System Utilities
End-UserUtilities
Developmenttools
Docs
Commands
![Page 10: Introduction to Unix/Linux ICN Summer Institute Jackson State University June 16, 2009 Mississippi Center for Supercomputing Research Jason Hale & Susan.](https://reader035.fdocuments.in/reader035/viewer/2022081519/56649f335503460f94c4f6d0/html5/thumbnails/10.jpg)
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Unix/Linux File System
Similar to MS/DOS Files (Windows Command Prompt):
Differences
Windows LinuxCase doesn’t matter Case sensitiveSpaces ok in filenames Spaces not OK in namesBackslash used in pathnames Forward slash in pathsUser “Administrator” User “root”
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jsujsu
tracct1tracct1 tracct2tracct2 r1311r1311
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Unix/Linux File Permissions
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Unix/Linux File Permissions
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