Check if file name exist in file - powershell

Question

Lets say i have 8 files in a folder, and I have a file.csv with 5 lines.
The 8 files start with the same like in the file.csv 0022***_something.csv. So I want to check if filename exist in file.csv
file.csv lines look like:
0022150;something;something;something
0022151;something;something;something
0022152;something;something;something
0022153;something;something;something
0022154;something;something;something
$FileCsv = Get-Content "\\sharedFolder\file.csv" | foreach {($_ -split ";")[0..0]} | Where {($_ -like "00*")}
$FolderPath = "\\SharedFolder\Path\"
Foreach ($file in $folderPath)
{
$file = $file.Substring(0,7)
if ($file exist in $FileCsv) #Not sure how I get this line right.
{
$file + "Exist"
}
else
{
$file + "Does not exist"
}
}

Answer 1

I would do something like this:
$FolderPath = "\\SharedFolder\Path\" #"# This is where the files are found
# read the CSV file, using a header 'Name' for the first column and get this column as an array of strings.
$NamesInCsv = (Import-Csv -Path "\\SharedFolder\file.csv" -Header Name -Delimiter ';').Name
# get a list if files with names that start with '022'
Get-ChildItem -Path $FolderPath -Filter '022*' -File | ForEach-Object {
# if the first 7 characters of the name are in the names from the CSV
if ($_.Name.Length -ge 7 -and $NamesInCsv -contains $_.Name.Substring(0,7)) {
Write-Host "File $($_.Name) exists in the Csv"
}
else {
Write-Host "File $($_.Name) does not exist in the Csv"
}
}
Hope that helps