Unix 'touch' command for PowerShell

touch.ps1

function touch() {
    <#
    .SYNOPSIS
    An analog to the UNIX 'touch' command
    .DESCRIPTION
    This approximates common usage of the UNIX 'touch' command. If the target
    file does not exist, it is created as a regular file. If it does exist, the
    last access time is set to the current time.
    .PARAMETER fname
    The target file path
    #>
    param ($fname)
    If (Test-Path $fname) {
        $(Get-Item $fname).LastAccessTime = $(Get-Date)
    } Else {
        New-Item -Type File -Name $fname
    }
}