run java.exe with arguments from powershell

Question

I'm trying to call wlst/jython/python from powershell

set classpath with setWLSEnv.cmd is not set in the right session? so I have tried to set -cp as argument

& C:\bea\tpc\weblogic1033\server\bin\setWLSEnv.cmd; 
$cp='C:\bea\tpc\WEBLOG~1\server\lib\weblogic.jar'
$wlst='weblogic.WLST'
$script='C:\domains\tpc\Domain\bin\status.py'
$java="C:\PROGRA~1\Java\JROCKI~1.0\bin\java"
& "$java $cp $wlst $script"
#or
. "`"$java`" -cp `"$cp`" $wlst `"$script`""
#or
& "`"$java`" -cp `"$cp`" $wlst `"$script`""

I have tried to quote the command string in various ways without success

The term '"C:\PROGRA~1\Java\JROCKI~1.0\bin\java" -cp "C:\bea\tpc\WEBLOG~1\server\lib\weblogic.jar" weblogic.WLST "C:\domains\tpc\SasTT pcDomain\bin\status.py"' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again. At C:_WORK_\SAS\statusAll.ps1:15 char:2 + . <<<< ""$java" -cp "$cp" $wlst "$script"" + CategoryInfo : ObjectNotFound: ("C:\PROGRA~1\Ja...\bin\status.py":String) [], CommandNotFoundException + FullyQualifiedErrorId : CommandNotFoundException

Keith Hill · Accepted Answer · 2013-01-14 17:22:18Z

1

When you use the call operator &, the next token needs to be the name of a command and nothing else. So instead of this:

& "$java $cp $wlst $script"

Try this:

& $java $cp $wlst $script

Sometimes getting arguments to native exes can get ugly. A technique that usually works but is unsafe if any of your arguments come from user input is this:

Invoke-Expression "$java $cp $wlst $script"

edited Jan 14, 2013 at 17:22

answered Jan 14, 2013 at 16:53

Keith Hill

204k44 gold badges370 silver badges377 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

jpmc26 · Accepted Answer · 2013-01-15 00:28:58Z

0

In addition to the trouble with how you're formatting your command into a string, setWLSEnv.cmd is a script for the Windows Command Prompt. PowerShell cannot execute this file; it does not know how to interpret it, much like how Notepad does not know how to interpret a docx file. Windows associates .cmd files with the command prompt, so your first line is equivalent to

& cmd.exe /c C:\bea\tpc\weblogic1033\server\bin\setWLSEnv.cmd

(Note that the semicolon is unnecessary since you don't have any other commands on the same line.)

This creates a new process using cmd.exe. This new process executes the batch file, setting the environment variables you expect, and then the process exits, discarding the environment changes.

If you need setWLSEnv.cmd to set environment variables prior to executing your program, you should write a batch file that calls it instead of a PowerShell script. Otherwise, you will need to find or write a PowerShell equivalent to set up your environment.

edited Jan 15, 2013 at 0:28

answered Jan 15, 2013 at 0:23

jpmc26

30.2k14 gold badges100 silver badges152 bronze badges

3 Comments

ReneHH Over a year ago

As I thought. I was was just hoping that there was some magic that could force it to execute in the right session like in unix . ./env.sh

Keith Hill Over a year ago

As an alternative, you can use the Invoke-BatchFile command in the PowerShell Community Extensions (pscx.codeplex.com) that will execute the batch file and propagate environment changes back to the PowerShell process.

jpmc26 Over a year ago

@ReneHH PowerShell does have an equivalent, but it only works for PowerShell files, just like sh-derivatives can only interpret the files written in their dialect. It's not that PowerShell is missing functionality; it's that PowerShell and the Command Prompt are two very, very different types of command line shells. Asking PowerShell to run a .cmd file is kind of like asking an sh-derivative to run a batch file.

Collectives™ on Stack Overflow

run java.exe with arguments from powershell

2 Answers 2

Comments

3 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

3 Comments

Your Answer

Sign up or log in

Post as a guest

Related