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Possible Duplicate:
Text Editor for very big file - Windows

I need one editor which can edit huge sizes(100 MB to GBs) of log files in windows.

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migrated from Jun 16 '10 at 7:27

This question came from our site for professional and enthusiast programmers.

marked as duplicate by Mehper C. Palavuzlar, akira, Phoshi, heavyd, grawity Jun 16 '10 at 15:10

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

Do you need to actually edit, or is viewing enough? If you need to edit, is it an option to parse the edits with a script? – Tomas Lycken Jun 16 '10 at 7:01
up vote 6 down vote accepted

You may have a look at gVim.

But i think your question is already answered here!

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Do you mean actually edit or just view. I can't think of any other use case other than fraud where you'd want to change a log file :-)

For viewing log files, I just use less from either CygWin or the GNUWin32 suite. Choose the former if you wan every UNIX tool under the sun. Choose the latter if you want to be a bit more selective.

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cool, didn't know about the GnuWin32 suite, I was always using the ancient unix utils . thanks – seanizer Jun 16 '10 at 7:22

I've edited large log files with Notepad++, slow as it was, it didn't crash.

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It's worth noting there's a 64 bit version which in theory should be able to support files larger than 2GB - although in practice it's probably unusable at that scale. – Josh Jun 16 '10 at 7:01
+1 for Notepad++. However Josh I don't believe there is a 64 bit version of notepad++. – user29646 Jun 16 '10 at 7:08

Try FirstObject XML Editor. You can just ignore the XML features.

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Could you describe what's your purpose ? more then 100mb is too large to edit by a human. Use the sed, perl, or any scripting as the editor is better.

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If I am to change 1 line in a file, I can edit it. No matter how large it is, and I am human (last time I checked). – daramarak Jun 16 '10 at 12:03

I believe both the 'vim' and 'emacs' editors handle large files very well (i.e. no slowdown, they don't load the whole file into memory at once).

Both are available for windows, but installation may not be completely straight-forward. If you're familiar with either editor, or know your way around the computer well enough then they may prove useful.

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Try Notepad++. It is pretty good.

Notepad++ is a free source code editor and Notepad replacement that supports several languages. Running in the MS Windows environment, its use is governed by GPL License.

Notepad++ features:

  • Syntax Highlighting and Syntax Folding
  • User Defined Syntax Highlighting and Folding
  • PCRE (Perl Compatible Regular Expression) Search/Replace
  • Document Map
  • Auto-completion
  • Multi-Document (Tab interface)
  • Multi-View
  • WYSIWYG (Printing)
  • Zoom in and zoom out
  • Multi-Language environment supported
  • Bookmark
  • Macro recording and playback
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