Did I write the directory copy script correctly?

Question

bash

Hello!
We need a script that will archive the catalog with images by cron and send it to Yandex disk.
I never really worked with bash, I googled it as best I could!
1. Please see if everything was done correctly, point out the mistakes!?
2. As I understand there are many different shells bash, sh, etc., which one is better to use for everyday tasks?

#!/bin/bash

PATH_TO_MEDIA='/home/andrey/site_ru/project/media'
FILE_PATH="/tmp/$(date "+%Y-%m-%d_%H-%M-%S")_media.tar.gz"

echo "Архивирую медиа каталог \"$PATH_TO_MEDIA\".."
cd $(dirname $PATH_TO_MEDIA)
tar czf $FILE_PATH --exclude='.*' --exclude='cache' $(basename $PATH_TO_MEDIA)
echo "Готово!"

echo "Отправляю на сервер.."
curl --user mail:123 -T "{$FILE_PATH}" https://webdav.yandex.ru/backup/media/
echo "Готово!"

exit 0

Answer 1

Does he fulfill the task that you assign to him? So it's written correctly.

Answer 2

On the second question, here is a pretty good article that compares popular shells.

Answer 3

not really cool, because $(date "+%Y-%m-%d_%H-%M-%S" will be different when creating an archive and sending. Because time is running out.