instead of: `if (( "$H" >= 9 ))` it may be better to have a range: `if (( "$H" >= 9 && "$H" <= 21 )) ` At least for me having the beeper making noise at 23 is also a bat time
instead of:
it may be better to have a range:
At least for me having the beeper making noise at 23 is also a bat time