How do you change extensions in MS-DOS?

Working on a lab now and need a little assistence.



Heres the question:

The diskette has three COBAL files (.cbl and .cbf). Copy them into your new directory, changing the extension to .c for both files as you copy.



I know how to copy the files into the new directory but not sure how to change the extensions.

Thx for your help.How do you change extensions in MS-DOS?
to create directory lets say our new directory is ';new';

c:\%26gt; md new

c:\%26gt; copy *.cb* c:\new

c:\%26gt; ren *.cb* *.c



Done.How do you change extensions in MS-DOS?
Use wildcards as follows:



COPY *.cbl NEWDIR\*.c



Extensions will be changed in the new directory.



hope this helps.
It's been a long time since I've used DOS but when you copy the files you should be able to supply a new name. So when you type the new name just type the same name but with .c at the end.