Re: GNU sed version 2.05 failure.....

[Bob Proulx]

address@hidden <address@hidden> [2002-11-20 09:38:39 -0500]:
> Sir:
> 
> I have been using your unix utilities on my Windows NT MS-DOS prompt for
> quite sometime now and I find it useful.

If you are using MS-Windows then does that mean you are using Cygwin?

  http://www.cygwin.com

If so then they are the best folks to help you with your questions.
None of us over here are running MS-Windows and can't help you.  Check
out their FAQ first and if you don't find anything relevant then ask
on the appropriate cygwin mailing list.

Good luck!
Bob

> Today I faced a problem while running your sed utility on a 446 MegaBytes
> data file while doing a search and change on it...
> It keeps throwing up with the following error message :
> 
> H:\TEMP>type all.txt | e:\utilities\sed "s/@@/  /g" > tmp8
> 
> (e:\utilities\sed.exe 1000) commit_and_inc: VirtualAlloc failed
> //e/utilities/sed: Couldn't re-allocate memory
> The process tried to write to a nonexistent pipe.
> 
> I dont understand why the utility takes up the entire file it is reading
> into paging memory and does the processing..
> Can you suggest some solution for the above problem as to how to make the
> sed utility to do its search & change work on large files....
> I would like to have any other solution apart from these :
> 
> (1) Split the large file into small , get the search/change processing done
> and then join all the small files back into a large one.
> (2) Increase the paging memory in my system..
> 
> Is it possible for the sed utility to take only a portion of the large file
> at one time into paging memory and do the processing...instead of taking
> the contents of the whole file...say like though it starts of processing on
> a 446 MB file it should take like 10000 lines into paging memory and do the
> changes at a time...
> 
> By the way, the version of the sed utility I am using is,
> 
> H:\TEMP>e:\utilities\sed --version
> GNU sed version 2.05
> 
> So I would also like to know if you have any other latest version on the
> above sed utility,
> which can take care of my above problem and is also available as a
> freeware on a website in the net...
> 
> I am looking forward to a solution on the above from you...
> 
> Thanks,
> Srinivasan.
> 
> 
> 
> 
> 
> 
> 
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> 
> 
> 
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