Instead of minute, hour, day, month or day of week it's also possible to specify a *. A * represents all possible values for that position (e.g. a * on 2nd position is the same as specifying all the possible values for hour) Several values can be separated by commas: e.g. if a command is to be executed every 10th minute so you can specify 0,10,20,30,40,50 for minute. A range of values can be
