which is the best site or ebook to learn msdos?

Answer 1

Here's a plain-speaking reference guide to all the command-line stuff and nonsense that makes DOS work, whether you're a native DOS user or are an occasional dabbler who needs the operating system to run all those cool games under Windows.

DOS For Dummies, 3rd Edition, avoids all the technical jargon to cut to the heart of things with clear, easy-to-understand explanations and step-by-step help for

Changing disks and drives
Dealing with the DOS prompt
Managing files
Running DOS inside Windows
Installing and running DOS-based software programs
Working with the printer and serial ports
Using the mouse and keyboard
Troubleshooting problems
Understanding DOS error messages
All the basic DOS commands, from APPEND to XCOPY, are demystified to make life in DOS much more bearable. This handy guide has plenty of helpful tips and tricks for bending DOS to your will, without having to dedicate your life (and all your free time) to mastering this little corner of the PC.

Author Dan Gookin's first edition of DOS For Dummies became an international best-seller. He considers himself a computer "guru" whose job it is to remind everyone that computers are not to be taken too seriously. His approach to computers is light and humorous, yet very informative. Gookin mixes his knowledge of computers with a unique, dry sense of humor that keeps you informed – and awake.
~Cheers~

Answer 2

Google for: MSDOS commands

Answer 3

learn ms-dos as in ms-dos commands, like for batch files or command prompt, i started of using "http://academic.evergreen.edu/projects/biophysics/technotes/program/batch.htm" but now i just use google and search for "complete list of batch file commands" or you could just open command prompt and type "help", it will give you lots of commands