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ed scripts in Windows command shell

From: randall . harp
Subject: ed scripts in Windows command shell
Date: Wed, 14 May 2008 16:24:08 -0700 (PDT)
User-agent: G2/1.0

Although I have experience with diff and ed on *nix, I just can't seem
to get ed to work in the Win32 environment (cmd.exe).

diff -e oldfile newfile > script.ed

gives the proper ed commands, but any variation of

type script.ed | ed oldfile > result

just won't work: I get either an empty result, or the last line of the
original file repeated a few times in the result. I've tried 'for'
loops with 'echo' and 'type', appending 'w' and 'q' commands to
script.ed, and all sorts of variations. Still no luck.

Has anyone had success using 'ed' commands with Win32?

P.S. I want to use the 'ed' output from diff, since several 'ed'
commands can be concatenated together to apply several changes -
unlike 'context' and 'unified' diffs that have to be appiled
individually against each intermediate result.

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