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From: Nigel Wade <nmw@ion.le.ac.uk>
Newsgroups: comp.lang.java.programmer
Subject: Re: exec problem is JDK 1.7.0_21
Date: Wed, 24 Apr 2013 11:24:06 +0100
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Xref: csiph.com comp.lang.java.programmer:23620

On 23/04/13 22:05, Martin Gregorie wrote:
> On Tue, 23 Apr 2013 23:28:35 +0300, Sven Köhler wrote:
>
>> Am 23.04.2013 00:07, schrieb Martin Gregorie:
>>> My testprog works exactly the same when run from within my
>>> TestProcessBuilder test class as it does when run stand-alone from the
>>> command line:
>>>
>>> $ java TestProcessBuilder testprog "hello world" "\"hello world\""
>>> "\"hello\" \"world\"" "hello ""double quoted"" world"
>>> argc=5 argv[0]=testprog argv[1]=hello world argv[2]="hello world"
>>> argv[3]="hello" "world"
>>
>> Please look at the results that Steven posted. If the String "hello\"
>> \"world" is passed to the ProcessBuilder, the result was:
>>    argv[1]=[hello] argv[2]=[world]
>>
> Actually, on Linux almost all the messing about with strings is done by
> the shell that invokes the the command if the strings are enclosed in
> double quotes.

Only if the command invokes a shell, otherwise there is no shell involved.

The shell is just another executable.

-- 
Nigel Wade