System.IO.Path Class Methods in Powershell

function Set-PSModulePath { <# .Synopsis Set-PSModulePath [path] .Description Adjust the PSModulePath env variable to your liking .Notes Add integration with other modules so they can add their own dir to the psmodulepath! #> param( [parameter(Mandatory = $false)] [string] $Path ) # Cross-platform path-separator value # On Windows it is `;`, on Unix-like systems it is `:` $sep = [System.IO.Path]::PathSeparator if ($Path) { Write-Host -ForegroundColor Yellow "Adjusting PSModulePath Adding $Path to `$env:PSModulePath" Write-Verbose "Setting old path to `$oldPSModulePath" $oldPSModulePath = $env:PSModulePath $env:PSModulePath = "${Path}${sep}$env:PSModulePath" Write-Host -fore Yellow "`$env:PSModulePath is now $env:PSModulePath" } else { Write-Error "You did not write a Path" } }