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Editorial Team
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Asked: 2026-05-28T22:52:42+00:00

I am writing a release script in powershell and need to invoke a custom

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I am writing a release script in powershell and need to invoke a custom executable and pass in a bunch of parameters to the executable. Few of these parameters are assigned values from various conditions and executions in the script. I see that the values are not getting evaluated when the executable is invoked. Some of the variables need to be passed in as a series of arguments inside double quotes as well. Shown below is a smaple call

mysample.exe ‘-forcerebuild’ ‘-release=$CALC_VERSION‘ ‘-projfile=sample.proj’ ‘-buildoptions=”/p:AllowDevDependencies=true /p:AssemblyVersion=$CALC_ASSEMBLY_VERSION /flp:LogFile=$env:temp\build.log /p:BaseIntermediateOutputPath=$PROJECT_BASE\build\ /clp:nosummary”‘

All the variables that need to be evaluated are highlighted. The exe expects all the options provided to -buildoptions inside quoted -buildoptions=”all build options”

The values don’t seem to get evaluated. However, if i put build options as a separate variable and print it, the values seem to get evaluated. I am new to powershell and would really appreciate any help with this.

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1 Answer

  1. Editorial Team

    Note that powershell doesn’t do variable expansion inside single quoted strings. For example:

    $test_variable = "test"
write-host "this is a $test_variable"
write-host 'this is a $test_variable'

    will print

    this is a test
this is a $test_variable

    Also, powershell has problems in passing arguments to exes. There is a util called EchoArgs.exe that comes with Powershell Community Extensions. Use that and pass your argument to that to see if they are passed fine.

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