I am assuming you mean CMD.
In which case just type "Help" without the quotation marks.
A listing of DOS commands are available if you type help at the command prompt. DOS commands do vary from version to version.
Go to the Command prompt and run "help" command to see the command list..
Use "/?" option with command. For example, if you want help for "chkdsk" command, enter "chkdsk /?" and press enter.
AnswerTHE DOS command is netstat -a.
no
Dos command line to start Microsoft anti virus?
yes it is an external command.
The command "for" start the loop and "do" is the end of the loop, this two commands should be used with care especially in a autoexec.bat it can put your PC in a infinity loop and you might not be able start it again. For help on all DOS commands in the command prompt just type the word "help" or "?" a space and then the command IE "C:/>help for" or "C:/>? for" then DOS will list everything you need to know about the command.
del *.*
Yes it is used to comment Dos line
"fdisk" command is used for partitioning in DOS.
There is nothing called DOS applet.. You can run Java applet from DOS..