intro


Get-Help Get-ChildItem -detail

Set-ExecutionPolicy -Scope CurrentUser -ExecutionPolicy RemoteSigned

Get-ExecutionPolicy

$_ special variable


ls *.exe | ForEach-Object {$_.Name}

convert time format


 ls *.exe | ForEach-Object {$_.CreationTime | Get-Date -Format 'yyyymmdd'}

conditional branch instruction

There are several ways:

Write-Host: Write directly to the console, not included in function/cmdlet output. Allows foreground and background colour to be set.

Write-Debug: Write directly to the console, if $DebugPreference set to Continue or Stop.

Write-Verbose: Write directly to the console, if $VerbosePreference set to Continue or Stop.