Kotlin Blueprints

Reading command-line arguments

We will be taking two arguments from the command line:

• The name of the CSV file to read
• The column number to find unique entries from

The following code block shows how to read arguments passed from the command line:

    // Get command line input    if (args.size != 2) {      println("Usage: csv_filename column_number")      return    }    val fileName = args[0]    val columnNumber = args[1].toInt()

For example, csv.exe books.csv 1.