PowerShell: Get 2 strings into a hashtable and out to .csv - csv

Question

PowerShell newbie here,
I need to:
Get text files in recursive local directories that have a common string, students.txt in them.
Get another string, gc.student="name,name" in the resulting file set from #1 and get the name(s).
Put the filename from #1, and just the name,name from #2 (not gc.student="") into a hashtable where the filename is paired with its corresponding name,name.
Output the hashtable to an Excel spreadsheet with 2 columns: File and Name.
I've figured out, having searched and learned here and elsewhere, how to output #1 to the screen, but not how to put it into a hashtable with #2:
$documentsfolder = "C:\records\"
foreach ($file in Get-ChildItem $documentsfolder -recurse | Select String -pattern "students.txt" ) {$file}
I'm thinking to get name in #2 I'll need to use a RegEx since there might only be 1 name sometimes.
And for the output to Excel, this: | Export-Csv -NoType output.csv
Any help moving me on is appreciated.

Answer 1

I think this should get you started. The explanations are in the code comments.
# base directory
$documentsfolder = 'C:\records\'
# get files with names ending with students.txt
$files = Get-ChildItem $documentsfolder -recurse | Where-Object {$_.Name -like "*students.txt"}
# process each of the files
foreach ($file in $files)
{
$fileContents = Get-Content $file
$fileName = $file.Name
#series of matches to clean up different parts of the content
#first find the gc.... pattern
$fileContents = ($fileContents | Select-String -Pattern 'gc.student=".*"').Matches.Value
# then select the string with double quotes
$fileContents = ($fileContents | Select-String '".*"').Matches.Value
# then remove the leading and trailing double quotes
$fileContents = $fileContents -replace '^"','' -replace '"$',''
# drop the objects to the pipeline so that you can pipe it to export-csv
# I am creating custom objects so that your CSV headers will nave nice column names
Write-Output [pscustomobject]#{file=$fileName;name=$fileContents}
} | Export-Csv -NoType output.csv