powershell wildcard matching/regex

Question

I have the following code below I have to get down to under 260 characters. I had another post like this before and a powershell wizard came through and introduced me to wildcard matching, and although I spent hours studying what he did I can not figure out how to replicate the dark magic. Would someone be so kind to inform me. I have scoured the internet for reference and have failed on that front as well.

(netsh wlan show profiles) | sls "\:(.+)$" | %{$n=$_.Matches.Groups[1].Value.Trim(); $_} | %{(netsh wlan show profile name="$n" key=clear)}  | sls "Key Content\W+\:(.+)$" | %{$p=$_.Matches.Groups[1].Value.Trim(); $_} | %{[PSCustomObject]@{ ssid=$n;pass=$p }}

This is the example the wizard showed me. My code above this needs to use the same technique to shorten it even further.

this: Add-Type -AssemblyName System.Windows.Forms

to:

Add-Type -AssemblyName *m.W*s.F*s

ok well no matter how hard I try to replicate what he did with other commands it never works — I am Jakoby
– I am Jakoby, Commented Aug 16, 2022 at 2:59
Probably because most cmdlets don't accept either RegEx, or Wildcard Patterns. So, your question is just trying to shorten System.Windows.Forms using RegEx/Wildcard Patterns? — Abraham Zinala
– Abraham Zinala, Commented Aug 16, 2022 at 3:05
no that is an exmaple of how it was shown to me working, I need to apply that to the code above it — I am Jakoby
– I am Jakoby, Commented Aug 16, 2022 at 3:06
This is 216 characters switch -r(netsh wlan show profiles){'\:(.+)$'{$n = $Matches[1].Trim();switch -r(netsh wlan show profile name="$n" key=clear){'Key Content\W+\:(.+)$'{$p = $Matches[1].Trim();[PSCustomObject]@{ssid = $n; pass = $p}}}}} — Daniel
– Daniel, Commented Aug 16, 2022 at 4:35

Doug Maurer · Accepted Answer · 2022-08-16 05:35:54Z

2

Technically what you're doing is code golf. It's ugly and not something that is usually recommended. If I recall correctly, for some reason you're trying to fit scripts like this into the Run box. This is the smallest I could get it with a decently described object at the end.

switch -r(netsh wl sh pr){':\s(.+)'{$s=$matches.1;switch -r(netsh wl sh pr n=$s k=clear){'tent.+:\s(.+)'{[PSCustomObject]@{SSID=$s;Pass=$matches.1}}}}}

edited Aug 16, 2022 at 5:35

answered Aug 16, 2022 at 5:24

Doug Maurer

8,9773 gold badges16 silver badges18 bronze badges

Sign up to request clarification or add additional context in comments.

5 Comments

Daniel Over a year ago

Beat mine... Nice

I am Jakoby Over a year ago

Yes that is correct. Run box accepts 259 characters. To be clear your help is extremely appreciated but I also want to learn how to incorporate this functionality myself though it is understandably ugly. Was it trial and error for you or is there actually documentation somewhere?

Daniel Over a year ago

@IamJakoby, it's about the art of refactoring. The more you know about the programming/scripting language, the better, because then you can look at the code and see that it can be rewritten a different way. For example, with the sls and match combination you had I realized that that could be done more concisely with a switch statement. Doug here realized that he could skip the $p assignment completely and just output it in the psobject. Also shortening the netsh parameters was genius. I was thinking there might even be a way to define a quick function since some of the code repeats

I am Jakoby Over a year ago

Thank you Daniel, I am putting as much effort as I can into becoming more proficient every day and trying to learn something new. I like asking in here not because I'm lazy but the community as a whole has a level of ingenuity that's often not even in the docs and I greatly appreciate being able to learn from you guys. You just now gave me a lot to explore and I'm appreciative.

Daniel Over a year ago

Keep it up. Some advice. Go through this guy's answers and responses and you will learn A LOT

Collectives™ on Stack Overflow

powershell wildcard matching/regex

1 Answer 1

5 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

5 Comments

Your Answer

Sign up or log in

Post as a guest

Related