Powershell for each line within variable

Question

I am trying to go through a variable, line by line, and apply regex to parse the string within it.

I am downloading the data via invoke-restmethod and am trying to do the below

$result= invoke-restmethod -uri $uri -method get

foreach($line in $result)
if($line -match $regex)
{
   #parsing
}

the above doesn't work as their is only one line. But when I output result into a file and then apply the above logic it works, like so

$result= invoke-restmethod -uri $uri -method get
$result >> $filelocation

$file = get-content $file
foreach($line in $file)
if($line -match $regex)
{
   #parsing
}

The script is time critical so I don't have the luxury to write to a file and then reopen, how could I achieve the above without using get-content?

I want to see the content of the file when you are storing in file and also the content output when you are not storing .Just give a write-host in the loop to get the output in the console and request you to post it. — Ranadip Dutta
– Ranadip Dutta, Commented Dec 24, 2016 at 16:44

Phillip Scott Givens · Accepted Answer · 2016-12-27 22:02:21Z

4

It is not a problem with Invoke-Method. The following works exactly as you would want.

$result = Invoke-RestMethod -Uri https://blogs.msdn.microsoft.com/powershell/feed/
$result | %{ Write-Host $_ }

I suspect that the REST endpoint is giving you a UNIX newline instead of a windows newline. In UNIX, a new line is one character 'lf' (line feed). In windows a newline is a 'crlf' (carriage return, line feed).

Try a string split method

$result.Split("`n") | %{ Write-Host $_ }

or if you prefer your 'foreach' syntax

foreach ($line in $result.Split("`n")) {
  Write-Host $line
}

[Edit: changed 'for' to 'foreach']

edited Dec 27, 2016 at 22:02

answered Dec 24, 2016 at 15:40

Phillip Scott Givens

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1 Comment

rusty009 Over a year ago

the second option worked, but i had to change the for to a foreach

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