> -----Original Message-----
> From: Daniel Schultz [mailto:DSchultzNetworkServicesGroup.com]
> for /R %f in (*.htm *.html *.asp) do ren %f %~nf.old & findstr /L /V
> "readme.eml" %~nf.old >%f

This won't work under NT. When you use format specifier letters (any of
"dfnpsx") with the enhanced %~ syntax your variable name must not conflict
with those format specifier letters. So %~nf, %~nd, etc. won't work, but
%~ni will.

Also won't work if your file names have spaces in them. And you need to use
the name+extension in the second arg to rename ("%~nxi.old") and the full
filename ("%i.old") for findstr.

Strange thing: it seems that the *.htm pattern in the for /R command matches
files that end in ".htm" followed by anything except a period. So it
matches *.html, *.html34j#, *.htmq, etc., but not *.h or *.ht or *.htm.old.
Apparently, only the first three characters are compared. Thus *.html files
are picked up twice. I.e., once for the original file and once for the new
"clean" file. This could be bad; see below. (Don't know if this is true on
Win2K.)

Finally, if the rename fails for some reason (maybe there already is a
".old" file), you will end up with no backup and a 0-byte original (empty
output from findstr)! Better to use && instead of &, which will only run
the second command if the first command succeeds.

Here is a corrected example:

for /R %i in (*.htm *.asp) do ren "%i" "%~nxi.old" && findstr /L /V
"readme.eml" "%i.old" > "%i"

You can also put an "" before "ren" to hide output (except errors):

for /R %i in (*.htm *.asp) do ren "%i" "%~nxi.old" && findstr /L /V
"readme.eml" "%i.old" > "%i"

Of course, this technique only removes lines that have "readme.eml" in them.
Are we sure that will always get *all and only* the added code? What if the
original HTML file didn't end in a CRLF?
And, you'll probably want to delete the readme.eml files as well.

-Francis

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