working directory: the file system directory from which you want to execute the command.If the executable is not in a directory listed in the PATH environment variable, the command line must contain the full path to the executable. command line: indicates the command LabVIEW calls to run a program.To call a Perl or Python script from LabVIEW you will need to pass in the following parameters to the System Exec.vi Ensuring that your Environment Path Variable includes the directory in which you Interpreter and corresponding library files are saved will allow any System Exec call to recognize the perl and python tokens as commands to use the Perl and Python Interpreters to execute the script. The following modules have been added to ActivePerl 5.: Algorithm-Diff-1.1902 Bit-Vector-6. This VI can be used to call a command line argument that will launch the Perl or Python script. For detailed information or to download this release, see. In LabVIEW you can use the System Exec.vi to execute a system-level command line that can include any parameters supported by the application you want to launch. To call the interpreter that will execute the script use the following command(s):įor Perl scripts, use: ' perl argument' as shown in the image below.įor Python scripts, use: 'p ython scriptName.py argument' as shown in the image below.Ĭalling Perl and Python Scripts from LabVIEW.Navigate to the directory where the Perl or Python script is saved.Both Installers have built in functionality to edit the Environmental Path Variable to include the directory location of the interpreter and corresponding library files.Ĭalling Perl and Python Scripts From the Command Line Note: This example was prepared using the Using the ActivePerl 5.10.0 Interpreter and the ActivePython 2.6.1 Interpreter, which can be downloaded from the External Link: APSN ActivePerl Website and External Link: ActiveState ActivePython Website, respectively. Add the directory for where your Interpreter is saved. Download Latest Stable Source (5.36.0) Mac OS X Binaries Already Installed Mac OS X already has Perl installed.In System Variables, select the Path variable, and then click Edit.Right-click on My Computer and select Properties.You will need to ensure that the Environmental Path Variable is modified to include the directory in which the Interpreter and corresponding library files are located in order for the machine to recognize the Perl and Python tokens as commands to use the interpreter. You can edit the Environment Path using the System Properties Editor. Calling the interpreter can be simplified by changing the Environment Path Variable to include the location where your interpreter and corresponding library files are saved.
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