Need specific line of string from Invoke-WebRequest output

Question

I've got the following:

$WebContent = Invoke-WebRequest -Uri "URLHERE/$PCNAME" -UseDefaultCredential |
              Select-Object -ExpandProperty Content

And it outputs perfectly:

Key1: sfsdfsdfsfdsfsdsfs
Key2: SD:34:SD:34:SD:34
Version: 4
Timestamp: 4/13/2018 4:00:11 PM

But I need to be able to put the content of Key1 and Key2 into a variable, without the space, and accommodating the possibility of varying lengths of each key.

I was trying to use Substring($len - 83,14) to get the length of it all and parse out the exact spot of the Key, but for some reason they are changing in length and a few have cut off the key which gives a incorrect output. I probably need to get the whole line and then put into a variable everything after the ':' and ' '.

Any ideas?

@TheIncorrigible1 The data appears to be the response from a web request, so it's most likely a string array, not a PowerShell object. — Ansgar Wiechers
– Ansgar Wiechers, Commented Jul 19, 2018 at 16:44
@AnsgarWiechers Sometimes the iwr cmdlet is nice and parses things into objects for you, but it's impossible to know with certainty without more detail. — Maximilian Burszley
– Maximilian Burszley, Commented Jul 19, 2018 at 16:44
@TheIncorrigible1 does it? I've only known irm to do that. — TessellatingHeckler
– TessellatingHeckler, Commented Jul 19, 2018 at 17:00

Ansgar Wiechers · Accepted Answer · 2018-07-19 16:49:55Z

3

Assuming that the response you got is text, not a structured object, you could do something like this:

$data = $WebContent -replace ': ', '=' |
        Out-String |
        ConvertFrom-StringData

The above will replace colons followed by a space with a = character and merge all into a single string, so that ConvertFrom-StringData can convert the list of key/value pairs to a hashtable. Then you can assign values to individual variables like this:

$key = $data['Key1']

or just use the hashtable as-is.

answered Jul 19, 2018 at 16:49

Ansgar Wiechers

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TessellatingHeckler · Accepted Answer · 2018-07-19 16:41:27Z

1

Split the content into lines, match the ones you want and ignore the rest, replace the part you don't want, store the result:

$test = @'
Key1: sfsdfsdfsfdsfsdsfs
Key2: SD:34:SD:34:SD:34
Version: 4
Timestamp: 4/13/2018 4:00:11 PM
'@


$result = ($test -split "`r?`n") -match '^key.: ' -replace '^key.: '

Depending on what you mean by "get the two keys into one variable"; this result will be an array of string.

One of many, many possible approaches.

answered Jul 19, 2018 at 16:41

TessellatingHeckler

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1 Comment

Ansgar Wiechers Over a year ago

$key1, $key2 = ...?

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