CMD

Command Line Interface 

 cd - Change Directory

 mkdir - Make Directory

tom$ mkDir photos

tom$ ls

Desktop Photos Documents 

tom$ touch new_file

tom $ ls 

Desktop Photos Documents new_file

tom$ cp new_file Documents

tom$ cd Documents

tom$ ls

tom$ new_file

tom$ mkDir More_Docs

tom$ cp -r  Documents More_Docs

tom$ cd More_Docs

tom$ ls

new_file

tom$ cd..

tom$

Data Science Toolbox

Command Line Interface

www.coursera.com

Python Programming Tutorial - 2 - Numbers and Math

Check it out!

Check it out

                        http://www.miniclipminiclip.net/miniclip/cemetery-guard/miniclip

Linux Philosphy

Linux Philosophy

Linux borrows heavily from the UNIX operating system because it was written to be a free and open source version of UNIX. Files are stored in a hierarchical filesystem, with the top node of the system being root or simply "/". Whenever possible, Linux makes its components available via files or objects that look like files. Processes, devices, and network sockets are all represented by file-like objects, and can often be worked with using the same utilities used for regular files.

Linux is a fully multitasking (a method where multiple tasks are performed during the same period of time), multiuser operating system, with built-in networking and service processes known as daemons in the UNIX world.

Click    below 

https://www.youtube.com/watch?v=H7Uz692S6T4