Pass parameter from a batch file to a PowerShell script

Question

In my batch file, I call the PowerShell script like this: ``` powershell.exe "& "G:\Karan\PowerShell_Scripts\START_DEV.ps1" ``` Now, I want to pass a string parameter to `START_DEV.ps1`. Let's say the parameter is `w=Dev`. How can I do this?

Accepted Answer

Let's say you would like to pass the string `Dev` as a parameter, from your batch file:

```
powershell -command "G:\Karan\PowerShell_Scripts\START_DEV.ps1 Dev"
```

put inside your powershell script head:

```
$w = $args[0]       # $w would be set to "Dev"
```

This if you want to use the built-in variable `$args`. Otherwise:

```
 powershell -command "G:\Karan\PowerShell_Scripts\START_DEV.ps1 -Environment \"Dev\""
```

and inside your powershell script head:

```
param([string]$Environment)
```

This if you want a named parameter.

You might also be interested in returning the error level:

```
powershell -command "G:\Karan\PowerShell_Scripts\START_DEV.ps1 Dev; exit $LASTEXITCODE"
```

The error level will be available inside the batch file as `%errorlevel%`.

Pass parameter from a batch file to a PowerShell script

Solution

Problem