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From:	David Allsopp <David DOT Allsopp AT cl DOT cam DOT ac DOT uk>
To:	"cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com>
Subject:	RE: How to start Cygwin from outside Cygwin and pass a command to execute?
Date:	Fri, 2 Feb 2018 09:16:42 +0000
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Ben via cygwin wrote:
> Assume my CgyWin (on a windows 7) is currently NOT started.
> 
> Assume I want to call from Windows my CgyWin and pass a command to 
> execute.
> 
> Afterwards CygWin should automatically be closed again.
> 
> How can I achieve this?

C:\cygwin\bin\bash.exe -c "command"

You will find that successfully navigating the Command Prompt, Cygwin's and "bash -c"'s escaping rules to be entertaining for advanced commands.

You can also achieve similar with mintty.exe -e (which will launch the terminal emulator, instead of using an existing console window, or opening a new one). Similar fun with escaping unusual commands.

See, for example, https://github.com/ocaml/opam/blob/43e4c778/appveyor_build.cmd#L93


David


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