Reload the same file from the beginning without restarting logstash

Elastic Stack Logstash
3

Thanks for the tip. I tried using a cat command on the file, the problem now is that it loads the content of the whole file as a single block. Here is an example of the file content :

myFirstColumn;mySecondColumn;mythirdColumn
valueA;ValueB;ValueC
Value1;Value2;Value3
ValueX;ValueY;ValueZ

And here is my config :

input {
	exec {
		command => "cat myfile.csv"
		interval => 2
		add_field => {
			  "tag" => "mytag"
		}
	}
}
filter {

	if [tag] == "mytag" {
		csv {
			columns => ["myFirstColumn", "mySecondColumn", "mythirdColumn"]
			separator => ";"		
		}
}

It sends the whole content of the file without splitting it content. Is something missing ?