How to run a Powershell script from the command line and pass a directory as a parameter - powershell

Question

PowerShell -Command .\Foo.ps1
Foo.ps1:
Function Foo($directory)
{
echo $directory
}
if ($args.Length -eq 0)
{
echo "Usage: Foo <directory>"
}
else
{
Foo($args[0])
}
Despite Foo.ps1 being in the directory from where I am calling Powershell, this results in:
The term '.\Foo.ps1' is not recognized as the name of a cmdlet, function, script file, or operable program.
Check the spelling of the name, or if a path was included, verify that the path is correct and try again.
EDIT: Wasn't working because PowerShell was changing directory due to profile.ps1 containing cd C:\
I then tried to call it specifying the full path to the script file, but no matter what I try, I can't get it to work. I believe I have to quote the path because it contains whitespaces, as does the file name I need to pass in an argument to the script.
Best guess so far:
PowerShell -Command "'C:\Dummy Directory 1\Foo.ps1' 'C:\Dummy Directory 2\File.txt'"
Outputs error:
Unexpected token 'C:\Dummy Directory 2\File.txt' in expression or statement.
At line:1 char:136.

Answer 1

try this:
powershell "C:\Dummy Directory 1\Foo.ps1 'C:\Dummy Directory 2\File.txt'"

Answer 2

you are calling a script file not a command so you have to use -file eg :
powershell -executionPolicy bypass -noexit -file "c:\temp\test.ps1" "c:\test with space"
for PS V2
powershell.exe -noexit &'c:\my scripts\test.ps1'
(check bottom of this technet page http://technet.microsoft.com/en-us/library/ee176949.aspx )

Answer 3

Using the flag -Command you can execute your entire powershell line as if it was a command in the PowerShell prompt:
powershell -Command "& '<PATH_TO_PS1_FILE>' '<ARG_1>' '<ARG_2>' ... '<ARG_N>'"
This solved my issue with running PowerShell commands in Visual Studio Post-Build and Pre-Build events.

Answer 4

Add the param declation at the top of ps1 file
test.ps1
param(
# Our preferred encoding
[parameter(Mandatory=$false)]
[ValidateSet("UTF8","Unicode","UTF7","ASCII","UTF32","BigEndianUnicode")]
[string]$Encoding = "UTF8"
)
write ("Encoding : {0}" -f $Encoding)
result
C:\temp> .\test.ps1 -Encoding ASCII
Encoding : ASCII

Answer 5

Change your code to the following :
Function Foo($directory)
{
echo $directory
}
if ($args.Length -eq 0)
{
echo "Usage: Foo <directory>"
}
else
{
Foo([string[]]$args)
}
And then invoke it as:
powershell -ExecutionPolicy RemoteSigned -File "c:\foo.ps1" "c:\Documents and Settings" "c:\test"

Answer 6

you have type and hit enter :
PowerShell -Command