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From: Eric Blake <ebb9 AT byu DOT net>
Subject:  Re: Patch to allow Cron to use non-POSIX shells like Powershell.exe and CMD.exe
Date: Wed, 4 Jun 2008 17:00:31 +0000 (UTC)
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Blair Sutton <blairuk <at> googlemail.com> writes:

> 
> I simply introduce a new environment variable called SHELLSWICTH that
> defaults to "-c" if not used. Otherwise, one can set it to "/c" or
> "-Command" for Windows shells.

Why should we patch a cygwin utility to promote the use of a non-cygwin shell?

> Attachment (cron-bs.patch): application/octet-stream, 718 bytes
> Attachment (cron.tab): application/octet-stream, 709 bytes

Sending text files as application/octet-stream makes them harder to read in 
email.  Consider using a text MIME type instead.

> 
> Hi
> 
> This is a very simple patch for Cron to allow one to use a shell like
> powershell or cmd. I've done some testing and it appears to work well.

You should fix your mailer to not send duplicate copies of a message when 
writing to a text-only mailing list.

> 
> SHELL=/cygdrive/c/WINDOWS/system32/windowspowershell/v1.0/powershell.exe
> SHELLSWITCH=-Command
> 
> * * * * *   echo test 1 2 3
> * * * * *   ls c:
> * * * * *   & 'C:\Documents and Settings\blair sutton\My
> Documents\WindowsPowerShell\Test\test.ps1' one two three

And what's wrong with doing this with what cron already provides:

* * * * * /cygdrive/c/windows/system32/windowspowershell/v1.0/powershell -
Command '"c:\documents and settings\blair sutton\my 
documents\windowspowershell\test\test.ps1" one two three'

> 
> Hope you might be able to use it.

I'm not the cron maintainer, but I hope he doesn't bloat the code for this.

-- 
Eric Blake




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