Pull data from text file into PS Script.

i extreme novice @ ps scripting , wondering how pull data each line of txt (or csv) , plug script.  below current script , want able use each line txt file or csv in $client variable. there 300+ "client" names.

$client = "client1"
$environment = "-testenv"

$targetdns = "bigtime$environment"        
$newclient = "$client-testenv"

add-dnsrecord -session $session -hostheadername $newclient -targethost $targetdns

i believe have use like:

get-content c:\path\clientnames.txt | foreach...............

start learning use powershell "help"

type "help help" , read instructions.  after  on cmdlet , @ examples;

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\_(ツ)_/

Windows Server  >  Windows PowerShell