private static void RunCommand(String command) throws InterruptedException {
        try {
            // Execute command
            Process proc = Runtime.getRuntime().exec(command);
}
}

ffmpeg -i "concat:/home/temp10.avi|/home/p2.avi|/home/temp15.avi" -c copy -y /home/output.avi

String c4="ffmpeg -i "concat:"+dir+temp1+"|"+dir+ad+"|"+dir+temp3+"" -c copy -y "+dir+output;