import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		String regex = "/{2}.*\\R|\\(.*?\\)|^\\s*\\S+|- *([a-zA-Z]\\w*)";
		String string = "Command1 -argument1   -argument2 (param1, -param2)\n"
			 + "Command2 -  argument3  (param3) -argument4 (param4, -param2)\n"
			 + "Command-3 -argument5  -argument6 (param5) -argument7 (param6, -param7)";
 
		Pattern pattern = Pattern.compile(regex, Pattern.DOTALL | Pattern.MULTILINE);
		Matcher matcher = pattern.matcher(string);
		List<String> res = new ArrayList<>();
		while (matcher.find()) {
		    if (matcher.group(1) != null) {
			res.add(matcher.group(1));
		    }
		}
		System.out.println(res);
	}
}
 

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