powershell

// create a runspace (where you run your powershell statements in)
runspace := CreateRunspaceSimple()
// auto cleanup your runspace
defer runspace.Close()

// this will get the registry key for HKEY_LOCAL_MACHINE
results := runspace.ExecCommand("get-item", true, nil, `hklm:\`)
// auto cleanup the results
defer results.Close()

// print the .ToString() of a registry key, which is the key name
fmt.Println(results.Objects[0].ToString())

Output:

HKEY_LOCAL_MACHINE

// create a runspace (where you run your powershell statements in)
runspace := CreateRunspaceSimple()
// auto cleanup your runspace
defer runspace.Close()

// pass in map with named names to values
results := runspace.ExecCommand("Get-ItemPropertyValue", true, map[string]interface{}{
	"Path": "HKLM:\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion",
	"Name": "SoftwareType",
})
// auto cleanup the results
defer results.Close()

// print the .ToString() of a registry key, which is the key name
fmt.Println(results.Objects[0].ToString())

Output:

System

// create a runspace (where you run your powershell statements in)
runspace := CreateRunspace(logger.SimpleFmtPrint{}, nil)
// auto cleanup your runspace
defer runspace.Close()

// write to host the parameters that are passed in
command := `write-host "$args"; foreach($x in $args) {write-host $x};`
results := runspace.ExecScriptJSONMarshalUnknown(command, true, nil, 1, 2, false, "test string", []int{1, 2, 3}, map[string]string{"fruit": "apple", "vegetable": "celery"})
// auto cleanup the results
defer results.Close()

Output:

1 2 false test string [1,2,3] {"fruit":"apple","vegetable":"celery"}
1
2
false
test string
[1,2,3]
{"fruit":"apple","vegetable":"celery"}

// create a runspace (where you run your powershell statements in)
runspace := CreateRunspaceSimple()
// auto cleanup your runspace
defer runspace.Close()

statements := `$os = $env:OS;
				   "emitting your os is $os"`
// execute a statement in powershell consisting of "emitting your os is $os"
// $os will be Windows_NT
results := runspace.ExecScript(statements, true, nil)
// auto cleanup all results returned
defer results.Close()

fmt.Println(results.Objects[0].ToString())

Output:

emitting your os is Windows_NT

// create a runspace (where you run your powershell statements in)
runspace := CreateRunspaceSimple()
// auto cleanup your runspace
defer runspace.Close()

// gets whatever environment variable we request
//     wrapping $args[0] inside $() so powershell understands [0] associated with $args
getEnvironmentVariable := `$environVariable = get-childitem "env:\$($args[0])";`

// Execute the statement
// false - says to not execute the statement in a temporary child scope
//     meaning that the variables will be available to future invocations
// nil - means we didn't name any arguments
// "OS" - after first 3 parameters comes the unnamed arguments which we reference via $args[index]
results1 := runspace.ExecScript(getEnvironmentVariable, false, nil, "OS")
//not defering close as we do not need the results
results1.Close()

returnEnvironmentInfo := `"emitting your $($environVariable.Name) is $($environVariable.Value)"`
// true - we are choosing the create in a temporary child scope, the parent scope variables are still accessible to us
//     we could however choose to specify false and be in the same scope
results2 := runspace.ExecScript(returnEnvironmentInfo, false, nil)
// auto cleanup all results returned
defer results2.Close()

// print the string result of the first object from the last statement (which happens to already be a string)
fmt.Println(results2.Objects[0].ToString())

Output:

emitting your OS is Windows_NT

// create a runspace (where you run your powershell statements in)
runspace := CreateRunspace(logger.SimpleFmtPrint{}, nil)
// auto cleanup your runspace
defer runspace.Close()

// emit a json object with the following fields
command := `@{"Name"= "Knic";"Category"=4;"Human"=$true} |ConvertTo-Json -Depth 3`
results := runspace.ExecScript(command, true, nil)
// auto cleanup the results
defer results.Close()

// Unmarshal into custom object person
var me person
results.Objects[0].JSONUnmarshal(&me)

fmt.Print("Name: ", me.Name, ", Category: ", me.Category, ", Human: ", me.Human)

Output:

Name: Knic, Category: 4, Human: true