«

On Fri, 23 Sep 2011 07:35:15 -0700 (PDT), SamuelXiao
<> wrote, quoted or indirectly quoted someone
who said :

>
>String[] cmds =3D{"/bin/ksh","-c","uuenco

Start simple, say an echo command or whatever AIX uses to display a
text message.

Then gradually add the complexity.

If you can't even get that to work try running an executable rather
than a script.


See http://mindprod.com/jgloss/exec.html
--
Roedy Green Canadian Mind Products
http://mindprod.com
It should not be considered an error when the user starts something
already started or stops something already stopped. This applies
to browsers, services, editors... It is inexcusable to
punish the user by requiring some elaborate sequence to atone,
e.g. open the task editor, find and kill some processes.

On Sat, 24 Sep 2011 10:59:19 +0200, Lars Enderin
<> wrote, quoted or indirectly quoted someone
who said :

>Jag påminner om att "Try do" och liknande inte är korrekt engelska.
>Skriv "Try to (infinitiv)" eller "Try *ing". Alltså "Try to do that"
>eller "Try doing that".

From the name, the person you are talking to might speak Chinese, but
I doubt Swedish.
--
Roedy Green Canadian Mind Products
http://mindprod.com
It should not be considered an error when the user starts something
already started or stops something already stopped. This applies
to browsers, services, editors... It is inexcusable to
punish the user by requiring some elaborate sequence to atone,
e.g. open the task editor, find and kill some processes.

Roedy Green <> wrote:
> On Sat, 24 Sep 2011 10:59:19 +0200, Lars Enderin
><> wrote, quoted or indirectly quoted someone
> who said :
>> Jag påminner om att "Try do" och liknande inte är korrekt engelska.
>> Skriv "Try to (infinitiv)" eller "Try *ing". Alltså "Try to do that"
>> eller "Try doing that".
> From the name, the person you are talking to might speak Chinese, but
> I doubt Swedish.

Lars merely gave Arne a brief English lesson

On Sep 23, 8:14*pm, Andreas Leitgeb <a...@gamma.logic.tuwien.ac.at>
wrote:
> Arne Vajhøj <a...@vajhoej.dk> wrote:
> > On 9/23/2011 10:35 AM, SamuelXiao wrote:
> >> String[] cmds ={"/bin/ksh","-c","uuencode /log/test.log attached.log|
> >> mailx -s 'Testing' a...@example.com "};
> >> System.out.println("Before process run");
> >> Process process = Runtime.getRuntime().exec(cmds);
> >> System.out.println("After process run");
> >> both message displayed, but the process really not running.
> > That code is not reading output and error from the process.
>
> What may be even more relevant than reading from channels
> that likely won't send data, anyway, is to call .waitFor()
> on the process returned by the .exec(...)-call, in order to
> ensure that "After process run" is really printed after the
> run, instead of already after merely being kicked off.
>
> Reading from the error channel, like Arne suggested, might
> still be a good idea - unless you really don't care about
> any failures of uuencode or mailx. *Logging errors could also
> be done by ">>/tmp/debug-uuencode-and-mailx.log 2>&1" added
> to the little ksh-script.

Hi all,

Thanks very much, the problem has been solved. After I added
p.waitfor() after .exec(cmds), the process run successfully. Although
I don't know why need to add waitfor() to it.

Thanks

2011-09-26 11:32, Andreas Leitgeb skrev:
> Roedy Green <> wrote:
>> On Sat, 24 Sep 2011 10:59:19 +0200, Lars Enderin
>> <> wrote, quoted or indirectly quoted someone
>> who said :
>>> Jag påminner om att "Try do" och liknande inte är korrekt engelska.
>>> Skriv "Try to (infinitiv)" eller "Try *ing". Alltså "Try to do that"
>>> eller "Try doing that".
>> From the name, the person you are talking to might speak Chinese, but
>> I doubt Swedish.
>
> Lars merely gave Arne a brief English lesson
>
Arne is a Dane. He understands written Swedish. I made a mistake. I
shouldn't have posted, just sent a personal message.

SamuelXiao <> wrote:
>> >> String[] cmds ={"/bin/ksh","-c","uuencode /log/test.log attached.log |
>> >> mailx -s 'Testing' a...@example.com "};
>> >> System.out.println("Before process run");
>> >> Process process = Runtime.getRuntime().exec(cmds);
>> >> System.out.println("After process run");
>> >> both message displayed, but the process really not running.
>> What may be even more relevant [...] is to call .waitFor()
>> on the process returned by the .exec(...)-call,
>
> Thanks very much, the problem has been solved. After I added
> p.waitfor() after .exec(cmds), the process run successfully.
> Although I don't know why need to add waitfor() to it.

..exec(...) starts the child process,
..waitFor() lets the parent process wait, till the child process
has completed running.

Normally, the email should still be sent, even without .waitFor(),
but then it runs asynchronously to the parent process, which again
means, that the second println happens before the child process has
even had a chance to do anything. .waitFor() is merely synchronization.

On 9/26/2011 5:27 AM, Roedy Green wrote:
> On Sat, 24 Sep 2011 10:59:19 +0200, Lars Enderin
> <> wrote, quoted or indirectly quoted someone
> who said :
>
>> Jag påminner om att "Try do" och liknande inte är korrekt engelska.
>> Skriv "Try to (infinitiv)" eller "Try *ing". Alltså "Try to do that"
>> eller "Try doing that".
>
> From the name, the person you are talking to might speak Chinese, but
> I doubt Swedish.

Amazing what one can find using this modern thing called
the internet:
http://en.wikipedia.org/wiki/.dk

Arne