Re: exec problem is JDK 1.7.0_21

Nigel Wade <>
Wed, 24 Apr 2013 11:24:06 +0100
On 23/04/13 22:05, Martin Gregorie wrote:

On Tue, 23 Apr 2013 23:28:35 +0300, Sven K??hler 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

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