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From: J�rgen Exner on 4 May 2008 15:38
"Ela" <ela(a)yantai.org> wrote:
>> Ela said:
>>> When running the slave prog directly by perl slave.pl, something is
>>> printed onto screen but
>>> perl master.pl (master.pl call salve.pl by > system)
>>> does not

>#!/bin/sh
> `perl slave.pl $dirname`

Dude, you are _EXPLICITELY_ asking the shell to capture the output of
the subprocess and you wonder why it isn't printed?

> So how to solve?

Maybe don't ask the shell to caputure the output?

jue
From: Peter J. Holzer on 4 May 2008 15:37
On 2008-05-04 19:10, Jim Gibson <jimsgibson(a)gmail.com> wrote:
> In article <fvkj8m$1pt$1(a)ijustice.itsc.cuhk.edu.hk>, Ela
><ela(a)yantai.org> wrote:
>> #!/bin/sh
>> `perl slave.pl $dirname`
>>
>> So how to solve?
>
> Send the output stream from your Perl program to STDOUT:
>
> #!/bin/sh
> echo `perl slave.pl $dirname`

Ouch!

hp
From: Uri Guttman on 4 May 2008 16:15
>>>>> "JG" == Jim Gibson <jimsgibson(a)gmail.com> writes:

>>
>> #!/bin/sh
>> `perl slave.pl $dirname`

JG> Send the output stream from your Perl program to STDOUT:

JG> #!/bin/sh
JG> echo `perl slave.pl $dirname`

useless use of echo. just drop the backticks as others have mentioned.

uri

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