(cvsbook.info)Making A Change


Making A Change
---------------

The project as it stands doesn't do much.  Here are the contents of
hello.c:

     floss$ cat hello.c
     #include <stdio.h>
     
     void
     main ()
     {
        printf ("Hello, world!\n");
     }

Let's make the first change to the project since importing it; we'll add
the line

     printf ("Goodbye, world!\n");

right after the Hello, world!.  Invoke your favorite editor and make the
change:

     floss$ emacs hello.c
       ...

This was a fairly simple change, one where you're not likely to forget
what you did.  But in a larger, more complex project, it's quite
possible you may edit a file, be interrupted by something else, and
return several days later and be unable to remember exactly what you
did, or even to remember if you changed anything at all.  Which brings
us to our first "CVS Saves Your Life" situation: comparing your working
copy against the repository.


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