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update set of files with new set using batch

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Name: gman8
Date: October 22, 2009 at 05:01:11 Pacific
OS: Windows XP
Product: Microsoft / Dos
Subcategory: General
Comment:

I need a batch file that can compare the contents of 2 sets of folders (folder#1 and folder#2) by name and then do the following for all files:
If a file exists only in #1 => delete file
if file exists only in #2 => copy this file files to #1
if file (with same name) exists in both #1 and #2 overwrite file in #1 with file from #2, but only if they have different content.

Is this possible?

Cheers



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Response Number 1
Name: Mechanix2Go
Date: October 22, 2009 at 05:56:20 Pacific
Reply:

If you're using XP this is the wrong forum.


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Helping others achieve escape felicity

M2


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Response Number 2
Name: nbrane
Date: October 26, 2009 at 22:34:02 Pacific
Reply:

maybe:

cd folder1
for %%a in (*.*) do if not exist folder2\%%a del %%a
cd folder2
for %%a in (*.*) do copy /y %%a folder1

obv. this does the copy operation regardless of the
file's contents, but if contents are the same, what does
it matter? the copy won't change anything anyway.


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