PowerShell Regex replace produces empty output

Question

I am trying to match the following string and replace it with the first capture goup: PCUNIT020\Username; I need just the Username portion. I use the following regex:

 $name="PCUNIT020\Username";
 $regex="^\w+\\(.*)";
 $newname=$name -replace $regex, $1;
 $newname;

The shell does not output anything.

Martin Brandl · Accepted Answer · 2018-02-13 12:36:26Z

3

Your error is that you have to put $1 in quotes: '$1'. Otherwise it just replaces everything with the value of the variable $1 which is not set thus with nothing.

However, instead of replacing it with the first capture group just replace everything until and including the backslash with nothing:

$name -replace '^\w+\\'

edited Feb 13, 2018 at 12:36

answered Feb 13, 2018 at 12:28

Martin Brandl

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