Get-RandomString.ps1
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function Get-RandomString { <# .SYNOPSIS Returns a randomly generated string of the desired length and with the desired combination of characters (uppercase, lowercase, numbers, symbols) .PARAMETER Length Length of the string (number of characters) to return .PARAMETER Numbers The string must contain numbers .PARAMETER LowercaseLetters The string must contains lowercase letters .PARAMETER UppercaseLetters The string must contain uppercase letters .PARAMETER Symbols The string mut contain symbols and special characters .EXAMPLE Get-RandomString -Length 20 -UppercaseLetters -Numbers 1CVCB81ZZC05XYVEUN67 #> [CmdletBinding()] param ( [parameter(Position = 1)] [int]$Length = 15, [parameter()] [switch]$Numbers, [parameter()] [switch]$LowercaseLetters, [parameter()] [switch]$UppercaseLetters, [parameter()] [switch]$Symbols, [parameter()] [switch]$Space ) if ($PSCmdlet.MyInvocation.BoundParameters.Count -le 1) { if (($PSCmdlet.MyInvocation.BoundParameters.Keys -eq 'Length') -or ($PSCmdlet.MyInvocation.BoundParameters.Count -eq 0)) { $Numbers = $true $LowercaseLetters = $true $UppercaseLetters = $true $Symbols = $true } } $characters = @() if ($Numbers) { $characters += @(48..57) } if ($Symbols) { $characters += @(33..47) + @(58..64) + @(91..96) + @(123..126) } if ($Space) { $characters += @(160) } if ($UppercaseLetters) { $characters += @(65..90) } if ($LowercaseLetters) { $characters += @(97..122) } -join ($characters * ($Length * 3) | Get-Random -Count $Length | ForEach-Object { [char]$_ }) } |