return value

[David A. Bandel]

On Tue, Nov 18, 2008 at 4:16 PM, idan72 <ishai at cisco.com> wrote:
>
> Hi,
>
> I am running from the shell several java program and I need to send for
> program 2 the value return from program 1. The value isn't error code but a
> value compute in first program and used in second.
>
> Is there other way to do that beside using file ?

Yes, pipes.  You can use a named pipe if you want.  Program 2 looks
for anything coming through the pipe.  Program 1 sends data to the
pipe (although technically, a named pipe is a "file" it is not a
storage container).

>
> Thanks
>
> David A. Bandel-2 wrote:
>>
>> On Tue, Nov 18, 2008 at 6:16 AM, idan72 <ishai at cisco.com> wrote:
>>>
>>> Hi,
>>>
>>> I am running java program from batch file on linux.
>>> I want to get the return value using $? .
>>> If the value is less than 256 there is no problem.If it greater it return
>>> only the byte (257-> 1, ...) .
>>>
>>> How can I overcome this issue that the return value is only a byte ?
>>
>> rewrite bash? write your own shell?
>>
>> normal exit status is 0 (success), 1 (failure), 126 (file found but
>> not executable), 127 (file not found).  Other exit status' are thrown
>> to help programmers trap errors (exit 2, etc).  And 127+n is available
>> (but only up to 255).  Just how many errors are you trying to trap
>> anyway?  Sounds like you're trying to use exit status for something it
>> wasn't designed for.
>>
>> Ciao,
>>
>> David A. Bandel
>> --
>> Focus on the dream, not the competition.
>>             - Nemesis Air Racing Team motto
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>>
>>
>
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David A. Bandel
-- 
Focus on the dream, not the competition.
            - Nemesis Air Racing Team motto