Use bat to start Powershell script

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powershell .\test.ps1 arg1 'arg2 with space' arg3

or

powershell .\test.ps1 arg1 """arg2 with space""" arg3

I think you should try to avoid using double quotes as cmd already uses them too and therefore it's a little hard to predict what exactly PowerShell will get. Remember that this gets passed through two shells and therefore two layers of escaping/quoting.

PowerShell itself doesn't make much of a distinction between single and double quotes. At least in this context the difference is irrelevant.

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David.Chu.ca
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David.Chu.ca

Updated on May 27, 2020

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  • David.Chu.ca
    David.Chu.ca over 3 years

    I have a batch file test.bat to start a powershell script:

    @pushd "C:\myscripts"
    powershell .\test.ps1 arg1 "arg2 with space" arg3
    @popd
    

    The script test.ps1 (located at C:\myscripts) is a very simple one like:

    # just print out the arguments
    Write-Output ("args count: {0}" -f $args.length)
    $args
    

    Then I tried to start test.bat. I should get three arguments passed to ps1 but I got the following result:

    args count: 5 arg1 arg2 with space arg3

    What I expected in the script, args[0] should arg1 and args[1] should be "arg2 with space" and args3[2] be arg3. I cannot understand why the script actually gets 5 arguments.

    How can I pass parameters from cmd or batch to powershell as what I expected? Like this:

    args count: 3
    arg1
    arg2 with space
    arg3