Loop through a date range in Shell Script

Loop through a date range in Shell Script

Here is a simple shell script which accept two date value as argument and perform desired action for date value in loop.
daterange.sh

#!/usr/bin/bash
start=$1
end=$2

start=$(date -d $start +%Y%m%d)
end=$(date -d $end +%Y%m%d)

while [[ $start -le $end ]]
do
	echo $start
	start=$(date -d"$start + 1 day" +"%Y%m%d")
done

Uses:

daterange.sh 2019-01-01 2019-01-31

Please refer my previous article to validate date arguments

https://techieroop.com/pass-dates-as-mandatory-arguments-in-bash-script/