= PowerShell

#Search command
> get-command

#Search alias of command
> get-alias | where-object {$_.Definition -match "Get-Command"}

#help
>get-help get-alias
>get-help get-alias -detailed

#date
> get-date
> (Get-Date).GetType()
> (Get-Date).Year

# get-meber is for getting member information of object.
> Get-Date | Get-Member
> Get-Date | Get-Member -MemberType Method
> Get-Date | Get-Member -MemberType Property


# system information. 
> Get-EventLog -logName system -newest 10

#sort 
> Get-EventLog -logName system -newest 10 | Sort-Object eventID

# Get-childItem for seeing the property  
> Get-ChildItem *.* | Select-Object Name, Length
> Get-ChildItem *.* | Select-Object Name, Length | Sort-Object Length


# for getting service
> Get-Service
> get-service | Where-Object {$_.Status -eq "Stopped"}

#Grouping
Get-ChildItem *.* | Group-Object Extension


# Execute script

> cd C:\misc
> Get-ExecutionPolicy
> Set-ExecutionPolicy RemoteSigned

> notepad sample1.ps1

if ( Test-Path gtest.txth )
{
  Write-Host "test.txt exist"
}
else
{
  Write-Host "test.txt does not exist"
}

> ./sample1.ps1



#sample script 
> notepad sample2.ps1
Write-Host $args[0]

> ./sample2.ps1 "A"


#Pass the value as ref
> notepad sample3.ps1
function Test-ref([ref]$x,$y)
{
$x.value = 5
$y=5
}

$x=1
$y=1
Test-ref([ref]$x) $y
write-host $x,$y

> ./sample3.ps1


# register function
> notepad C:\Users\Owner\Documents\WindowsPowerShell\Microsoft.PowerShell_profile.ps1
Set-Variable -Scope "Global" -Option "Constant" -Name "GlobalScripts" -Value "$PSHome\Scripts";
Set-Variable -Scope "Global" -Option "Constant" -Name "Scripts" -Value ("{0}\WindowsPowerShell\Scripts" -f [Environment]::GetFolderPath("MyDocuments"));


function Execute-Scripts
{
    param ([String]$scriptsFolderPath)
   
    if (Test-Path $scriptsFolderPath)
    {
        Get-ChildItem $scriptsFolderPath -Include "*.ps1" -Recurse -Force | % { &($_.FullName); };
    }
}

Execute-Scripts $GlobalScripts;
Execute-Scripts $Scripts;

> notepad C:\Users\Owner\Documents\WindowsPowerShell\Scripts\Hoge.ps1
function global:Hoge
{
    return "HogeHoge";
}

#restart poweshell
> Hoge