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I have written a powershell script which is a complete function taking parameters (e.g. function name (param) { } ) and below this is a call to the function, with the parameter.
I want to be able to call this function in its .ps1 file, passing in the parameter. How would I be able to package a call to the function via a .bat or .cmd file? I am using Powershell v2.0.
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PowerShell.exe can of course be called from any CMD window or batch file to launch PowerShell to a bare console like usual. You can also use it to run commands straight from a batch file, by including the -Command parameter and appropriate arguments.
How do I pass parameters to PowerShell scripts? Passing arguments in PowerShell is the same as in any other shell: you just type the command name, and then each argument, separated by spaces. If you need to specify the parameter name, you prefix it with a dash like -Name and then after a space (or a colon), the value.
Running a PowerShell script from the Command Prompt If you would like to run a PowerShell script in CMD, you'll need to execute it by calling the PowerShell process with the -File parameter, as shown below: PowerShell -File C:\TEMP\MyNotepadScript. ps1. PowerShell -File C:\TEMP\MyNotepadScript.
Batch parameters (Command line parameters): In the batch script, you can get the value of any argument using a % followed by its numerical position on the command line. The first item passed is always %1 the second item is always %2 and so on. If you require all arguments, then you can simply use %* in a batch script.
You should use so called "dot-sourcing" of the script and the command with more than one statement: dot-sourcing of the script + call of the function with parameters.
The test script Test-Function.ps1:
function Test-Me($param1, $param2)
{
"1:$param1, 2:$param2"
}
The calling .bat file:
powershell ". .\Test-Function.ps1; Test-Me -Param1 'Hello world' -Param2 12345"
powershell ". .\Test-Function.ps1; Test-Me -Param1 \"Hello world\" -Param2 12345"
Notes: this is not a requirement but I would recommend enclosing the entire command text with double quotation marks escaping, if needed, inner quotation marks using CMD escape rules.
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