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Subject: Re: initial cygwin installation
From: Warren Young <wyml AT etr-usa DOT com>
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Date: Thu, 29 Oct 2015 12:08:57 -0600
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On Oct 28, 2015, at 8:49 PM, Andrey Repin wrote:
> 
>> I only wanted to *reinstall*
>> everything I had installed previously
> 
> Solution is to run `cygcheck --check-setup` and manually select any packages
> reported incomplete for reinstall.

This solution and Achim Gratz’ assume your Cygwin installation still runs.

If your AV has so totally roached things that you can’t even get a bash prompt up, or run your text editor, or run sed, you still have one way to avoid reinstalling everything without guessing: 

Open c:\cygwin64\bin in Windows Explorer, and use the file listing you find there to choose packages to reinstall.  Many of these will belong to some umbrella package, like coreutils or cygutils, so use the Cygwin Package search engine to work out what to reinstall if you’re not sure:

  https://cygwin.com/packages

Searching for something like “ls” will return too many results.  Making it “ls.exe” helps, but will still include false positives.  But, searching for “/ls.exe” tells you what you want to know: it’s in coreutils.
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