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Re: Test if a linux command is available with Spawn [message #86195 is a reply to message #86171]

Thu, 17 October 2013 05:56

Carsten Lechte
Messages: 124
Registered: August 2006

Senior Member

On 16/10/13 14:08, Fabien wrote:
> Is there a "more general way" to do this?

I would do it this way:

IDL> spawn, 'ls awoiefsdkf 2>&1 ', asdf
IDL> print, asdf
ls: cannot access awoiefsdkf: No such file or directory

This forces the STDERR output into the STDOUT output. It works regardless of
if and what the command chooses to print where.

Please note that I only said the I would do it this way, not that it is an
elegent way of doing this.

Anyway, I thought this should be pretty general. Then I remembered that shells
other than bash exist. So, one would have to do both bash and csh versions. Or
force /bin/bash. Sorry.

chl

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[Message index]

		Test if a linux command is available with Spawn By: Fabzi on Wed, 16 October 2013 05:08
		Re: Test if a linux command is available with Spawn By: Phillip Bitzer on Wed, 16 October 2013 07:12
		Re: Test if a linux command is available with Spawn By: Michael Galloy on Thu, 17 October 2013 11:30
		Re: Test if a linux command is available with Spawn By: Carsten Lechte on Thu, 17 October 2013 05:56
		Re: Test if a linux command is available with Spawn By: Carsten Lechte on Thu, 17 October 2013 06:00
		Re: Test if a linux command is available with Spawn By: chris_torrence@NOSPAM on Thu, 17 October 2013 09:25
		Re: Test if a linux command is available with Spawn By: Fabzi on Fri, 18 October 2013 02:00

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