Passing around command line $args in powershell , from function to function

Question

This is a nasty issue I am facing. Wont be surprised if it has a simple solution, just that its eluding me.

I have 2 batch files which I have to convert to powershell scripts.

file1.bat
---------

echo %1
echo %2
echo %3
file2.bat %*

file2.bat
--------
echo %1
echo %2
echo %3

On command line, I invoke this as C:> file1.bat one two three The output I see is as expected one two three one two three

(This is a crude code sample)

When I convert to Powershell, I have

file1.ps1
---------
Write-Host "args[0] " $args[0]
Write-Host "args[1] " $args[1]
Write-Host "args[2] " $args[2]
. ./file2.ps1 $args

file2.ps1
---------
Write-Host "args[0] " $args[0]
Write-Host "args[1] " $args[1]
Write-Host "args[2] " $args[2]

When I invoke this on powershell command line, I get
$> & file1.ps1 one two three
args[0] one
args[1] two
args[2] three
args[0] one two three 
args[1] 
args[2] 

I understand this is because $args used in file1.ps is a System.Object[] instead of 3 strings.

I need a way to pass the $args received by file1.ps1 to file2.ps1, much the same way that is achieved by %* in .bat files.

I am afraid, the existing manner will break even if its a cross-function call, just the way its a cross-file call in my example.

Have tried a few combinations, but nothing works.

Kindly help. Would much appreciate it.

Solution

# use the pipe, Luke!

file1.ps1
---------
$args | write-host
$args | .\file2.ps1    

file2.ps1
---------
process { write-host $_ }