Bash scripts to get openvpn expired keys and keys to be renewed in few days.
'keys_expired.sh' gets expired keys in current month by current date.
'keys_to_renew_concrete_date.sh' gets keys that gonna be expired in 10 [default value] days.
One may change [default value] in 3rd line as one likes.
'keys_to_renew_range_date.sh' gets keys that gonna be expired in range date days.
One may change [default value] in 2nd line as one likes.
Path to keys (*.ovpn) storage should be substituted for actual one if necessary.