Use ssh instead of wget to fetch the dmp file

[gregcorbett]

As the dmp file will soon reside on a host without a webserver. This is the code running on our failover now.

[gregcorbett]

Does this provide the correct exit code when it fails to copy?

the scp command provides a non-zero exit code on a failure to copy, at wish point the set -eu should cause the cron job to end.

Does it matter if it doesn't?

🤷