keytool:tldr:24917
This command is using the keytool utility, which is a key and certificate management tool in Java. More specifically, it is invoking the "storepasswd" command within keytool.
The "-storepasswd" command is used to change the password of a keystore. A keystore is a database that holds cryptographic keys and certificates.
The "-keystore" option is used to specify the keystore file that needs to be updated. In this case, the variable "${filename-keystore}" is expected to contain the filepath of the keystore.
So, when you run this command, it will prompt you to enter the current password for the keystore, then ask you to provide a new password, and finally, confirm the new password. Once you supply the inputs, the keystore's password will be changed to the new value.