Something

import java.io.File;
import java.io.IOException;
import java.io.BufferedReader;
import java.io.FileReader;


public class charlister
{
	public boolean hitIrc = false;

    public static void main(String[] args)
    {
        charlister df = new charlister();
        File[] files = new File("./charbackup/").listFiles();
        try
        {
            df.outputFiles(files);
        } catch (Exception e)
        {
            e.printStackTrace();
        }
    }

    public void outputFiles(File[] files) throws IOException
    {
        System.out.println("Reading " + files.length + " files...");
        for (File file : files)
        {
            BufferedReader in = new BufferedReader(new FileReader(file));
            String l;
            while{(l = in.readLine()) != null) {
            {
		if(l.trim().startsWith("irc")) System.out.println(l);
            }
            in.close();
        }
       	 System.out.println("Finished.");
	}
}