how to escape space and ampersand in same time in powershell script that execute CMD

Question

In my Powershell script, I use "rmtshare.exe" to get information about share level permission. The "rmtshare.exe" can run perfectly under CMD environment with following command:

rmtshare.exe \\fs-sw-206\"C&C FQT"

However, when I bring it to powershell environment. I can't figure out how to escape the space and the ampersand. Here is what I have tried so far which it is not working:

$rmtShare = "C:\rmtshare.exe" $ServerName = "fs-sw-206" $ShareName = "C&C FQT" Invoke-Expression ($rmtShare + " " + "\\" + $ServerName + "\" + $ShareName)

The script above will give error message from the CMD, it said "if a sharename or path contains spaces, it should be enclosed in quotes". If I changed the last line to this:

Invoke-Expression ($rmtShare + " " + "\\" + $ServerName + "\" + "'"+'"'+"'" + $ShareName +"'"+'"'+"'")

The error message was from Powershell itself, it said "The ampersand (&) character is not allowed". NOTE: if there is no ampersand, it works. So, now I am stuck because I need to escape both characters at the same time.

Please offer your solution.

You may need to download the rmtshare.exe to test out yourself. Download site: (https://www.symantec.com/connect/downloads/remove-folder-share-remote-computer)

--% escapes everything after itself, you can incorporate variables, check this: ss64.com/ps/syntax-esc.html — 4c74356b41
– 4c74356b41, Commented Dec 13, 2016 at 19:57
THANKS for the tip! YES, it's working by incorporate with --%. I will post the final solution later. — Liang Cui
– Liang Cui, Commented Dec 13, 2016 at 21:14

Liang Cui · Accepted Answer · 2016-12-13 21:49:12Z

so, here is the code in Powershell that overcame the problem - escape space and ampersand in same time in powershell script that execute CMD

$s = " " $q = '"' $Verbatim = '--%' $rmtShare = "C:\rmtshare.exe" $ServerName = "fs-sw-206" $ShareName = "C&C FQT" Invoke-Expression ($rmtShare +$s+$Verbatim+$s+"\\"+$ServerName+"\"+$q+$ShareName+$q)

There should be other solutions as well. Please post if you know it.

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