Powershell split csv column value into two seperate column values - powershell

Question

Lets say I have a csv file with 5 records (in reality it's about 80,000).
Csv File:
column1,columnICareAbout,column2
someRandomValue,John Doe - Generic,someRandomValue
someRandomValue,Captain Teemo - pocketPet,someRandomValue
someRandomValue,Pinky Brain - Fictional,someRandomValue
someRandomValue,Miyamoto Musashi - swordsman,someRandomValue
someRandomValue,Kato yasunori - troubleMaker - Extreme,someRandomValue
Given the following code:
Note: I know the array values are correct, I just need to know how to loop through the array in the expression.
$firstNames = #()
$firstNameCounter = 0
$lastNames = #()
$lastNameCounter = 0
Import-Csv $file1 |
foreach {
$firstNames += $_.Description.split(" ")[0]
$lastNames += $_.Description.split(" ")[1]
}
Import-Csv $file1 |
Select-Object *, #{n='First Name'; e={$firstNames[$firstNameCounter];$script:firstNameCounter++}}, #{n='Last Name'; e={$lastNames[$lastNameCounter];$script:lastNameCounter++}} |
Export-Csv "testresults.csv" -NoTypeInformation -Force
I only get the first element in the array every time. So the end result file looks like this
column1,columnICareAbout,column2,First Name,Last Name
someRandomValue,John Doe - Generic,someRandomValue,John,Doe
someRandomValue,Captain Teemo - pocketPet,someRandomValue,John,Doe
someRandomValue,Pinky Brain - Fictional,someRandomValue,John,Doe
someRandomValue,Miyamoto Musashi - swordsman,someRandomValue,John,Doe
someRandomValue,Kato yasunori - troubleMaker - Extreme,someRandomValue,John,Doe
I want the file to look like this
column1,columnICareAbout,column2,First Name,Last Name
someRandomValue,John Doe - Generic,someRandomValue,John,Doe
someRandomValue,Captain Teemo - pocketPet,someRandomValue,Captain,Teemo
someRandomValue,Pinky Brain - Fictional,someRandomValue,Pinky,Brain
someRandomValue,Miyamoto Musashi - swordsman,someRandomValue,Miyamoto,Musashi
someRandomValue,Kato yasunori - troubleMaker - Extreme,someRandomValue,Kato,yasunori
Can Anyone tell me what I'm doing wrong?

Answer 1

Import-Csv $file1 |
foreach {
$firstName = $_.Description.split(" ")[0]
$lastName = $_.Description.split(" ")[1]
$_ | Add-Member -MemberType NoteProperty -Name FirstName -Value $firstName
$_ | Add-Member -MemberType NoteProperty -Name LastName -Value $lastName
} | Export-Csv 'results.csv'
Add-Member commands will append the 2 columns FirstName and LastName