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Use Powershell to clean up last names in a csv file

Looking for a way to clean up the "last name" column in a CSV file. Some last names are fine "Johnson", but others are not; "Johnson P." or "Hicks MD" or "Renegar DDS PA" or "Ashcraft,". The file has several columns that I'm looking to maintain untouched, and output them with the "cleaned" version of the column last name values. So the output should be something like this:

BEFORE:
Number1  Number2         First Name    Last Name
100552      B7BA7153A      Darwin          Hayes
105212      15A1A75CA      Craig          Hicks DDS PC
105216      EA1357313      Charles          Chilcoat PC
105220      3A1C571EA      Gary                  Renegar Dds Pa
105221      99E59A31C      Michael          Ashcraft,

AFTER
Number1  Number2         First Name    Last Name
100552      B7BA7153A      Darwin          Hayes
105212      15A1A75CA      Craig          Hicks
105216      EA1357313      Charles          Chilcoat
105220      3A1C571EA      Gary                  Renegar
105221      99E59A31C      Michael          Ashcraft
0
bndit
Asked:
bndit
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2 Solutions
 
Dale HarrisProfessional Services EngineerCommented:
If you're using a CSV, this should work:

$File = import-csv "Book1.csv"
$File2 = @()
foreach ($line in $File){
$LastName = $line.lastname.split(" ")[0]
$FirstName = $line.firstname
$Number1 = $line.number1
$Number2 = $line.number2
$File2 += "$Number1 $Number2 $Firstname $Lastname"
}

$File2

#This will give you what you want in File2.  You can export it to text or CSV.  But play around with it to see what you have.

HTH,

Dale Harris
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wls3Commented:
This will automatically handle encoding, input file, output file and delimeters (in case you are not using commas).  There is more that could be added, but, this is a good starting point.

Function CleanCSVFile($filename, $delimeter, $output)
{
    $csv = Import-Csv -Path $filename -Delimiter $delimeter
    $b
    foreach($line in $csv)
    {
        $b += $line.Number1 + "," + $line.Number2 + "," + $line."First Name" + "," + $line."Last Name".Split(" ")[0] + "`n"
    }
    Out-File -FilePath $output -Encoding ASCII -InputObject $b
}

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It can be used like this:
CleanCSVFile "C:\Users\w\Documents\test.csv" "," "C:\Users\w\Documents\testout.csv"

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Dale HarrisProfessional Services EngineerCommented:
wls3,

I like how you did the $Line."First Name".  I didn't know that would work.  Thanks for the tip.

DH
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bnditAuthor Commented:
I'm calling the function as such...but it's failing

CleanCSVFile ('C:\scripts\output\shortHRList.csv',',','C:\scripts\Output\output1.csv')

I'm probably calling it wrong
error.png
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bnditAuthor Commented:
Ok, false alarm...I wasn't familiar with the way parameters are passed to functions in Powershell..and didn't know that parentheses actually evaluate the values to an expression....I changed my call to this:

CleanCSVFile "C:\scripts\output\shortHRList.csv" "," "C:\scripts\Output\output1.csv"

and it's working...thanks both for your feedback!
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soostibiCommented:
You have to adjust at the import-csv part the path and the delimiter (now it is set to TAB character).
Import-Csv C:\yorfile.csv -Delimiter "`t" | Select-Object number1, number2, "first name", @{n="Last Name"; 
    e = {$_."Last Name" -replace "^(\w+).*",'$1'}}

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soostibiCommented:

Import-Csv C:\yorfile.csv -Delimiter "`t" | Select-Object number1, number2, "first name", @{n="Last Name";   
    e = {$_."Last Name" -replace "^(\w+).*",'$1'}} | export-csv c:\newfile.csv -notypeinformation

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bnditAuthor Commented:
Good answers.
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