1. LINUX FOR BEGINNERS Because everyone needs Fundamentals
WEEK #3of 8: Getting around the first time to Shell

2. Week #3 Major Topics Introduction to Cloud and Virtualization,
Filesystem Basics
What is the “SHELL”
Basic Command Line Skills
Review and Exercises

3. Introduction to Cloud and virtualization
Virtualization- separates physical infrastructure to create various dedicated resources. It is the fundamental technology that powers the cloud computing
Vmware,citrix, rhev, oracle virtualbox
Cloud computing – the delivery of shared computing service, software or data – as a service and on- demand through the internet
Amazon, Rackspace, google, local company, etc.
virtualization and cloud computing work together to provide different types of services, as is the case with private clouds.

4. Filesystem Basics
/ (root level)
etc
dev
var
home
usr
boot
/home/ddadula/documents/file.txt
Documents
Music
Desktop
ddadula
Ktrinidad
aregencia

5. What is a shell?
Shell is an command language interpreter that executes commands read from the standard input device (keyboard) or from a file.

6. Basic Command line
1. Basic shell and command line syntax 2. How to use help in Linux

7. Basic shell and command line syntax
We need to cover:
i. commands, options, arguments
ii. globbing
iii. Quoting
IV. Variables

8. commands, options, arguments
Ls - list
LS -L /home/……
Cat - Concatenate
Echo – prints on the screen
Cd – change directory
Which - which binary can I run?
Ls; ls - command after a command
History

9. Globbing and QUOTING & variables
Ls *.txt - * any charcter
Ls file?.txt - any single character
Quoting " “
VARIABLE=value
Echo varialble=value
Echo $PATH – global variables

10. Variables (and the PATH variable)
Echo $PATH - directories : directory - special variable that tells the shell where to look for specific commands

11. How to use help in Linux?
i. Man – most commonly used ii. Info – more detailed iii. man pages - /usr/share/man

12. Q & A
Thank you!