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Re: How to capture error in Cygwin, $? is not working
Hi Corinna & all,
Thanks for the advise. I got it! :)
Cheers,
Lian
Corinna Vinschen-2 wrote:
>
> On Mar 12 23:09, nlian wrote:
>>
>> Hi,
>>
>> I want to write a simple script to start and stop windows service
>> remotely.
>> Here is the script:
>>
>> #!/usr/bin/bash
>> sc \\\\servername start "MyService"
>> echo $?
>>
>> =======
>> The above script return the following messages:
>> [SC] StartService: OpenService FAILED 1060:
>>
>> The specified service does not exist as an installed service.
>>
>> 0
>> =======
>>
>> What I don't understand is why $? return 0 and not 1060 or any other
>> error code. I want to capture the error code returned from windows
>> program
>> How to do this in Cygwin? Please advise.
>
> What you get is the exit value from the sc command. Sc returns 0. What
> sc prints is the error code it got from the service manager API. It's a
> pity that sc doesn't return a useful exit code but there's nothing
> Cygwin can do about the exit codes of Windows tools.
>
> `net start MyService' returns an exit code of 2, Cygwin's
> `cygrunsrv -S MyService' returns 1. Unfortunately both tools are not
> capabale to start services on a remote server.
>
> What you can do is something along the lines of
>
> sc \\\\servername start "MyService" | grep -q START
> echo $?
> 1
>
> Nothing keeps you from evaluating the output of the sc command
> in any elaborate way you can think of. Think grep, sed, awk, ...
>
>
> Corinna
>
> --
> Corinna Vinschen Please, send mails regarding Cygwin to
> Cygwin Project Co-Leader cygwin AT cygwin DOT com
> Red Hat
>
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