Executing powershell script - powershell

Question

I have a question i wrote a powershell script so i have name.ps1, but i have troubles for executing it, i mean i could debut it with windows powershell (ISE), by just adding the code to it and run ... but how do i execute it different?
When i open ordinary windows powershell (so NOT ISE) and i type there script.ps1 file.csv
i get this kind of error:
This is the code that i have, maybe im not proper initiating the script in my code i dont know:
param ([string]$Csv)
function GetHelp() {
$HelpText = #"
DESCRIPTION:
NAME: Add-STUser
Adds Users from the User Csv File
PARAMETERS:
-Csv The Csv file Used by the script (Required)
-help Prints the HelpFile (Optional)
The Csv File is built up in the following way:
Firstname, Surname, Email
"#
$HelpText
}
function Get-Csv ([string]$Csv) {
$CsvFile = Import-Csv $Csv
$CsvFile | ForEach {
Add-User -Firstname $_.Firstname -Surname $_.Surname -Email $_.Email
}
}
function Add-User ([string]$Firstname, [string]$Surname, [string]$Email) {
# Set up AD Connectionstring
# Get A Unique Password
[string]$Password = Generate-Password
$username=$Firstname.substring(0,1).toLower() + $Surname.toLower()
# Create User in AD
$container =[ADSI] $Connection
$User = $container.Create("User", "cn="+$username)
$User.Put("sAMAccountName", $username)
$User.Put("givenName", $Firstname)
$User.Put("sn", $Surname)
$User.Put("mail", $Email)
$User.Put("displayName", $Firstname + " "+$Surname)
$User.SetInfo()
# Set Random Pwd and Enable Account
$User.PsBase.Invoke("SetPassword", $Password)
$User.PsBase.InvokeSet("AccountDisabled", $false)
$User.pwdLastSet = 0
$User.SetInfo()
# Write Pwd to File
$FileName = "PasswordList " + (get-date -uformat "%Y-%m-%d") + ".txt"
"$Firstname, $Surname, $username, $email, $Password" | Add-Content $FileName
Write-Host "Added User: $username" -ForegroundColor Green
# Set Check Variable to False
$Password = $Null
#$Script:sAMAccountNameDoesntExist = $False
#$Script:distinguishedNameDoesntExist = $False
}
if ($help) {
GetHelp
} elseif ($Domain -AND $Csv) {
Get-Csv -Csv $Csv
} else {
GetHelp
}
So with other words i need to execute that script with only 1 param (path to csv file)
Thanks in advance

Answer 1

In Powershell, unlike cmd, current directory (.) is not in PATH.
So to run scripts or executables in the current directory, you have to prefix with ./
So you will have to do
.\script.ps1 file.csv
If you look carefully at the error message, at the bottom, Powershell is giving a suggestion that you have to do so.

Answer 2

You need to tell Powershell you want to execute a script from current location, like in *nix systems. So call the script like the error message hints:
./myScript.ps1
or
.\myScript.ps1
You can also provide full path to the script
c:\what\ever\is\the\path\myScript.ps1
The script/directory names are not case sensitive.