Re: ed scripts in Windows command shell

[email protected] wrote:
> On May 17, 12:14 am, "Kam-Hung Soh" <[email protected]> wrote:
>> On Fri, 16 May 2008 07:27:53 +1000, <[email protected]> wrote:
>>> On May 14, 4:24 pm, [email protected] wrote:
>>>> 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.
>>> P.P.S.
>>> I'm trying to use the GnuWin32 ed utility.
>> This worked:
>>
>> ed < script.ed oldfile
>>
>> Note that script.ed has "w" at the end to tell ed to write the changes.
>>
>> If you have multiple ed script files generated by diff, then concatenate  
>> all the script files and append "w" into one script file.  In cmd.exe:
>>
>> (cat f1 f1 ... && echo w) > script.ed
>>
>> Don't know GnuWin32's ed doesn't accept input from a pipe.
>>
>> --
>> Kam-Hung Soh <a href="http://kamhungsoh.com/blog">Software Salariman</a>- Hide quoted text -
>>
>> - Show quoted text -
> 
> Thanks for the reply.
> 
> Even when script.ed has a "w"  (or "w" and "q")  appended to it,
> oldfile remains unchanged. :-/
> 
> script.ed:
> 
> 78a
> 
>     public void noop();
> .
> w
> 
> ----
> 
> ed < script.ed oldfile
> 
> doesn't change oldfile
> 
> ed oldfile < script.ed
> 
> doesn't change oldfile
> 
> I've had success with GnuWin32 'patch', applying incremental diffs,
> but just can't get 'ed' to work.  If not for your 'This worked", I
> would conclude that 'ed' just can't be used this way in a Win32
> environment.
> 
> - Randall

What a puzzle.

Which version of "ed" are you using?  Mine is:

C:\Temp>ed --version
GNU ed version 0.2

-- 
Kam-Hung Soh <a href="http://kamhungsoh.com/blog">Software Salariman</a>