Calling perl program from Java

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miki.rao@gmail.com - 17 May 2006 18:58 GMT

Environment is Linux.
I have a perl script which needs to be executed from within a Java
Program.

Works fine on windows environment.

String cmd = "perl "+PropertyManager.getProperty("PerlScript")+" "
+inputFile +" "+ outfile

Any hints would be great.

Mekhala

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bmcdougald@hotmail.com - 17 May 2006 19:19 GMT

Does the user profile that the java program is executing under have
knowledge of where the perl interpreter is? In other words, is perl in
the path.

What if you put your command in a shell script along with the perl
evironmental vars and execute the shell script. Just make sure the
script has execute authority.

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Fred Kleinschmidt - 17 May 2006 19:31 GMT

> Environment is Linux.
> I have a perl script which needs to be executed from within a Java
[quoted text clipped - 8 lines]
>
> Mekhala

What doesn't work about it? How can we help if you don't say what's wrong?
"It doesn't work" could mean almost anything. Does perl exist on your Linux
platform?
Does java? Is the machine turned on?

Signature

Fred L. Kleinschmidt
Boeing Associate Technical Fellow
Technical Architect, Software Reuse Project

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Dražen Gemić - 17 May 2006 23:58 GMT

>>Environment is Linux.
>>I have a perl script which needs to be executed from within a Java
[quoted text clipped - 4 lines]
>>String cmd = "perl "+PropertyManager.getProperty("PerlScript")+" "
>>+inputFile +" "+ outfile

I don't know what is "PropertyManager", but as long as it returns
a valid name of the "PerlScript", and Perl is in PATH, it should
work everywhere.

Hint: don't expect '\\' separator to work on anything but Windows.

DG

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Scott Ellsworth - 19 May 2006 00:28 GMT

> >>Environment is Linux.
> >>I have a perl script which needs to be executed from within a Java
[quoted text clipped - 10 lines]
>
> Hint: don't expect '\\' separator to work on anything but Windows

And Hint The Second: always use the String[] form of exec, as it is not
confused by spaces in file names.

Scott

Signature

Scott Ellsworth
scott@alodar.nospam.com
Java and database consulting for the life sciences

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Jeffrey Schwab - 18 May 2006 02:45 GMT

> Environment is Linux.
> I have a perl script which needs to be executed from within a Java
[quoted text clipped - 8 lines]
>
> Mekhala

Congratulations, sounds like things are going just fine. Post again if
you have any trouble.

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Calling perl program from Java

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