UNIX for Dummies Questions & Answers

case "$AGE" in
        "<10") echo "You're in this decade.";;
        "[11..20]") echo "You're in this decade.";;
        "[21,30]") echo "You're in this decade.";;
        "[31-40]") echo "You're in this decade.";;
        "[>41&&<50]) echo "You're in this decade.";;
        
esac

case "$AGE" in
  [0-9]|10) echo 10 or less;;
  1[1-9]|20) echo 11 to 20;;
  2[1-9]|30) echo 21 to 30;;
  3[1-9]|40) echo 31 to 40;;
  4[1-9]) echo 41 to 49;;
  *) echo something else
esac

echo "Please enter your birthyear."
read myBirth
echo $myBirth
let YEAR=$("date" "+%Y")
let AGE=$YEAR-$myBirth
echo $AGE

case "$AGE" in
        "[0-9]|10") echo "10 or less.";;
        
esac