| Bill Jonas on Tue, 5 Nov 2002 10:17:09 -0500 |
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On Tue, Nov 05, 2002 at 08:43:10AM -0500, Arthur S. Alexion wrote: > Well, > copy /b file*.00? file*.exe > worked to produce > filename.exe. Oh, okay. So it works that way, too. > What I thought was interesting was that it apparently got the order of > the files to be combined correctly. You had them numbered sequentially, right? It ordered them (probably ASCII-betically) by filename. On Tue, Nov 05, 2002 at 08:49:34AM -0500, Arthur S. Alexion wrote: > (I guess a corrolary area of curiosity is whether > copy /b filename.003 + filename.001 + filename.002 filename.exe > would get the files in order. That is, what internal test is done, if > any, to insure the parts are combined properly.) There are *no* checks done. The "copy /b file1 + file2 + file3 filename" is the same as "cat file1 file2 file3 >filename" in Un*x. All that DOS copy is doing is taking the files and combining them one after the other, sequentially, in the order you specified, to the file you specified for output. If you did "copy /b file3 + file1 + file2 filename" or "cat file3 file1 file2 >filename", you'll get an incorrect result for filename. No magic and no checks. :) -- Bill Jonas * bill@billjonas.com * http://www.billjonas.com/ "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." -- Benjamin Franklin Attachment:
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