Calling perl script from labview

Hi,
I have a perl script and I would like to call the perl script from Labview
anyone can help me with that?
I used system exec but I'm getting an error.
Anyone have a working example like calling a simple perl script from Labview.
Thanks
SL Ong

Hi,
Thanks for the reply from everyone.
The attached is my code to call Perl script and after calling this, I need to query the Perl Script by sending command like @help. Do they have a way to query the Perl script by sending command like @help and get the return result.
I think Joseph you are right, but how do I get the return result if I invoke it in a separate dos session.
SL Ong

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Calling PERL script from scheduler

Hello All,
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ORA-27369: job of type EXECUTABLE failed with exit code: No such file or directory
STANDARD_ERROR="install_driver(Oracle) failed: Can't load '/usr/lib/perl5/site_perl/5.8.8/x86_64-linux-thread-multi/auto/DBD/Oracle/Oracle.so' for module DBD::Oracle: libclntsh.so.10.1: cannot open shared object file
It can't open libclntsh.so.10.1 file when I run the job, I guess because in job session, it creates a new shell and doesn't inherit the .profile and none of the environmental variables get set. When I run the PERL script manually it works because of all the env variables, so I put all those variables from my .profile into PERL script itself using ENV function but it still doesn't work, failed with very same error. And yes I do set LD_LIBRARY_PATH to point to $ORACLE_HOME/lib directory. Moreover, if I run the PERL script manually from a shell where I dont inherit .profile, it fails with very same error, so it is related to the environment issues but I have no idea how to fix it. I read somewhere the setting those env variable in PERL script itself doesn't help because by the time PERL get executed all the compilers are already initialized and and they don't use those environement variables anymore then. So the question is how to make it work?
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DB Version: 10.2.0.2 (also tested on 11R2, same problem)
OS: SUSE Linux 64 bit
And here is my libclntsh file in $ORACLE_HOME/lib
$ls -l libclnt*
lrwxrwxrwx 1 epsora epsdba 52 2009-09-15 13:39 libclntsh.so -> /u01/app/epsora/product/10.2.0/lib/libclntsh.so.10.1
-rwxr-xr-- 1 epsora epsdba 20274415 2009-09-15 13:39 libclntsh.so.10.1
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Edited by: Daljit on Jul 6, 2010 10:06 AM

Nothing in your post indicates that you created a directory object and granted privileges.
http://www.morganslibrary.org/reference/directories.html
did you?

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avni wrote:
I have to invoke the Script file at command prompt.
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I am facing a problem in running a PERL script in JAVA in UNIX box..
I am able to call ther perlscript.
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#! /usr/local/bin/perl
print "\nEnter Your Name :";
$name = <>;
print "\nYour Name is : $name\n";
exit 0;
Perl script request for the INPUT(name) .
My Java program is
File perlfile = new File("test.pl");
Runtime runtime = Runtime.getRuntime();
Process process = runtime.exec("perl "+perlfile);
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PLEASE help me on this....

In the PERL SCRIPT (test.pl)
LINE 1 : #! /usr/local/bin/perl
LINE 2 : print "\nEnter Your Name :"; .
LINE 3 : $name = <>;
LINE 4 : print "\nYour Name is : $name\n";
LINE 5 : exit 0;
When i run this script in perl test.pl in prompt (UNIX BOX), i am gettin the request for name "Enter Your Name:____ " but when i call this script from Java it doesn't request for name and moreover the process doesnt ends (use ctrl+c to come out of the process).When i come out forcefully it shows the ERROR=2.
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Sample scenario:
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I'm trying to execute and possibly terminate a PERL script from Labview.

I am currently using the system exec.vi to run my perl script. I would like to be able to terminate it as well. Any suggestion?
I'm running from windows xp.

Try looking at http://www.jeffreytravis.com/lost/labperl.html
The download (LabPerl) gives you comms between Labview ' Perl and viceversa.
And doesn't take too long to fathom out how it all works.
The perl program is set running (manually or by labview command window - don't wait for completion) followed by labview control etc.
N.B.
Each labview write string requires a Linefeed - then chomp at perl end
The secret is to have a good handshake method - each LabView read returns to perl an "ok"

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Thanks!

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How to call PERL Scripts from JavaFX?

Hi to all,
Does any one knows how to call a perl script with or without parameters from JavaFX?
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Kind Regards.

If I need to pass some parameters to the perl script, how I do so?
java.lang.Runtime.getRuntime().exec(['cmd', '/c', 'start', "c:\\helloperl.pl"]);
What's 'cmd', '/c', 'start'
The cmd stands for command prompt from xp and prior and /c is stands for the command to be passed to command promt.
I don't have good experience of perl but if it's like java then you can pass the parameter like this
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Calling perl script from java ---help needed

I haven't been doing a lot with java lately and i'm building an app with netbeans and having some difficulty with my button calling an outside perl script I'm pasting the code and error below...any help would be greatly appreciated. It's running on fedora 9 pretty much default install...
thanks.
code:
Runtime r = Runtime.getRuntime();
Process p = null;
String s = null;
String cmd123[] = { "perl /home/deaddev/test1.pl" };
try {
p = r.exec(cmd123);
catch {
foo bar/etc/etc
error:
Oct 12, 2008 4:09:37 PM photomainmgr readToPerlActionPerformed
SEVERE: null
java.io.IOException: Cannot run program "perl /home/deaddev/test1.pl": java.io.IOException: error=2, No such file or directory
at java.lang.ProcessBuilder.start(ProcessBuilder.java:474)
at java.lang.Runtime.exec(Runtime.java:610)
at java.lang.Runtime.exec(Runtime.java:483)
at photomainmgr.readToPerlActionPerformed(photomainmgr.java:117)
at photomainmgr.access$000(photomainmgr.java:21)
at photomainmgr$1.actionPerformed(photomainmgr.java:54)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2012)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2335)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:404)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:253)
at java.awt.Component.processMouseEvent(Component.java:6101)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3276)
at java.awt.Component.processEvent(Component.java:5866)
at java.awt.Container.processEvent(Container.java:2105)
at java.awt.Component.dispatchEventImpl(Component.java:4462)
at java.awt.Container.dispatchEventImpl(Container.java:2163)
at java.awt.Component.dispatchEvent(Component.java:4288)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4461)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4125)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4055)
at java.awt.Container.dispatchEventImpl(Container.java:2149)
at java.awt.Window.dispatchEventImpl(Window.java:2478)
at java.awt.Component.dispatchEvent(Component.java:4288)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:604)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:275)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:200)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:185)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:177)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:138)
Caused by: java.io.IOException: java.io.IOException: error=2, No such file or directory
at java.lang.UNIXProcess.<init>(UNIXProcess.java:164)
at java.lang.ProcessImpl.start(ProcessImpl.java:81)
at java.lang.ProcessBuilder.start(ProcessBuilder.java:467)
... 30 more
error executing perl /home/deaddev/test1.pl

jschell wrote:
sabre150 wrote:
As and alternative you can useString cmd123 = "perl /home/deaddev/test1.pl";Using the single string approach YOU have to do any quoting so with this line no quoting takes place and the script /home/deaddev/test1.pl will be executed.Although that should be true apparently it isn't. I have just run
Process p = Runtime.getRuntime().exec("perl /home/sabre/work/dev/perl/xxx.pl");
new Thread(new SyncPipe(p.getErrorStream(), System.err)).start();
new SyncPipe(p.getInputStream(), System.out).run();
int returnCode = p.waitFor();
System.out.println("Return code = " + returnCode);which correctly executes the perl script xxx.pl.
P.S. SyncPipe is a Runnable that copies an InputStream to an OutputStream.
Edited by: sabre150 on Oct 14, 2008 9:19 AM
Interesting! Even though Runtime.exec() works with a single String, ProcessBuilder fails with this approach! You have to split the argument string. This certainly looks like a bug! Some while ago I looked at the source for Runtime.exec() to look at the differences between Runtime.exec() and ProcessBuilder and found that behind the scenes Runtime.exec() uses ProcessBuilder.
More research is required.

How to call Python Scripts throght Labview

Hi all,
I am new to this community. Need some inputs for following Questions
Questions:
1) How can I call python script from LabView?
(Basically this python script calls some other DLL and print some message, to run the script using Python net in my application .To run my script in python net using following commands: import python script name )
2) In how many ways we can call Python scripts from labview?
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Regards,
Sambasivareddy

One way is to create a client server app and to send arguments to python (and back) over TCP/IP. This work very well.
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Python client to LabVIEW Server.
PJM
Message Edited by PJM_Labview on 03-12-2008 09:00 AM
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Calling PERL program from JAVA

what is the most efficient way to call PERL scripts from JAVA class?
please help,
thank you,

use of Webservices is the best answer which anyone can give you
Alright you might have to take help of XML-RPC(by hosting perl in a remote server) to call perl routines from java Class instances.
How you do that ?? please go ahead and try get more insight information from the below aritcle
http://www.javaworld.com/javaworld/jw-10-2004/jw-1011-xmlrpc.html
and if you are instrested in any other core solutions
http://www.perl.com/pub/a/2003/11/07/java.html
http://sunsite.ualberta.ca/Documentation/Misc/perl-5.6.1/jpl/docs/Tutorial.html
http://search.cpan.org/~patl/Inline-Java-0.52/Java/PerlInterpreter/PerlInterpreter.pod
http://www.perlmonks.org/index.pl?node_id=373839
the above links might intrest you.
Hope that might help :)
REGARDS,
RaHuL

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I am developing an online ticket booking system.
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Calling a perl script from stored procedure

Can anyone tell me how to call/run a perl script from a stored procedure? If you have a sample code, please include it.
Thanks in advance

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PROCEDURE call_perl(in_URL VARCHAR2) IS
/* This is setup to allow a perl program to be submitted as a batch program
using the standard Portal batch program.
Sometimes these jobs take a long time to run, so the timeout value must
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req utl_http.req;
resp utl_http.resp;
value VARCHAR2(1024);
BEGIN
req := utl_http.begin_request(replace(utl_url.escape(replace(in_URL,'%3A',':')),CHR(13)));
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Shell or perl script from OS command_Sender File Channel

Hi All,
I am trying to execute a perl script from the File Sender Channel(NFS), OS command Before Message Processing. The script works fine if i run it from the shell. But when PI calls the script, the script does not get executed. The audit logs mention that the OS command has been called.
I tried using:
1) /<fullpath>perlScript.pl /<fullpath>filename.dat
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Both these commands work fine when i execute them on the shell.
I am on solaris and PI 7.0. The permission for the perl script and input files are all 777.
FYI.. i am using this perl script to transpose a complex file and make it # delimited file.
I have already read the blogs for OS command and executed some sample scenarios successfully.
I tried to call a shell script that does the same functionality as the perl script. Even that does not work.
Also, wrote a shell script to call the perl script inside it. No luck.
eg:
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Edited by: Balaji M on Oct 30, 2008 2:36 PM

Hi,
The problem is fixed. The shell or perl both have logic to transpose a non industry starndard file to the delimited file which PI can use an FCC to pick up.
This was the fix:
we need to mention the shell the script is going to be run in.
In the shell script we mentioned --> *#!/usr/bin/bash* as the first line
normally, when we use the command -- which bash on the unix command prompt, it tells us the path for the bash used.
another option --> #!/usr/bin/ksh
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If the script is a simple one that does copy or move commands, i believe we need not use the commands above. But is a good practice to have them in the script.
Regards,
Balaji
Edited by: Balaji M on Nov 3, 2008 4:38 PM

Calling perl script from labview

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