using powershell, how do I check if a particular remote file share is available?

Question

My Powershell script assumes that the user running the script has access to a particular remote share on a fileserver. If they don't, I want to prompt the user to "map a network drive" first prior to running the script.

How would I do that?

Answer 1

_{Not sure if I understood the question correctly, but I am assuming here that we are checking here if user has required share mapped, not if user has access to required share.}

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I realize that this is not exactly answering your question but I would suggest a different approach.

You could try mapping the share in your script using New-PsDrive cmdlet and if needed prompting user for credential with Get-Credential

New-PSDrive -Name TestName -PSProvider FileSystem -Root \\fileshare.local\share -Credential (Get-Credential)

At the end of your script detach from it using Remove-PsDrive cmdlet.

Mapped Share will only be visible in the script context (won't appear in Windows Explorer).

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Finally, you could also use this method to check if share is mapped

    If(Get-PSDrive | Where-Object DisplayRoot -EQ '\\fileshare.local\share'){ "Mappped" } else { "Nope" }

Answer 2

Here's PowerShell code that will do what you're looking for.

$connected = $false
try {
  if ((get-item \\mycomp1\myshare).Name -eq "myshare") { $connected = $true }
} catch {
}
if (-not($connected)) {
  echo "Please map network drive to \\mycomp1\myshare using your domain credentials, and try again"
  exit
}