ps extraction path specific name syntax problem

[radish]

$a = "C:\Program Files (x86)\Google\Chrome\Application\80.0.3987.149\Installer\setup.exe --uninstall --system-level --verbose-logging"
$a -replace '([^\\]*)$'  

Suppose my condition is like this
How do I extract the desired folder name

$b = $a  -replace '([^\\]*)$'  

$b = google
or
$b =chrome
or 
$b = Application 

[radish]

On 4/2/2020 at 7:10 PM, radish said:

$a = "C:\Program Files (x86)\Google\Chrome\Application\80.0.3987.149\Installer\setup.exe --uninstall --system-level --verbose-logging"
$a -replace '([^\\]*)$'  

Suppose my condition is like this
How do I extract the desired folder name

$b = $a  -replace '([^\\]*)$'  

$b = google
or
$b =chrome
or 
$b = Application 

 

This can be solved by taking the folder name

 $a.split('\')[2] -replace '\.\w+$' 

google

 $a.Substring(0,$f.LastIndexOf('.')).split('\')[2] 

google