Thanks fletch. From reading the post you linked to, I also conclude that in place edit on multiple files with the "perl pie trick" works better from the cygwin command line than from the dos command line, where I get 
C:\thomasdata\thomasprojects\fixHtml\t\structural\beginning_includes>p
+erl -p -i
-e "s/this/that/" *.*
Can't open *.*: Invalid argument.

[download]
Well, one more reason to install cygwin I suppose, something I've been meaning to toy with for awhile. But even with cygwin, you automagically get .bak no matter what, if I understood that thread correctly.

In reply to Re^2: Inplace editing, one liner, without a backup file? by tphyahoo
in thread Inplace editing, dos one liner, without a backup file? by tphyahoo

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