[shell] generate strings between specified dates

Join us want to generate 2022-01-01 To 2022-05-01 Between date format strings , adopt shell How to achieve it ？ as follows ：

start="2022-05-23"
end="2022-06-23"
while [[ $start < $end ]] 
  do 
     echo "$start"
     hdfs dfs -mkdir -p /user/xxx/testgdm/