had to list jobs recently and couldn't figure out how, this is how

howto/backup.md

@@ -529,6 +529,18 @@ Load each database dump:
 See [howto/ldap](howto/ldap) for LDAP-specific procedures.
 
 
+## Listing latest backups from a host
+
+To see when backups have ran for a host, use the `list jobs`
+command. For example:
+
+    list jobs job=corsicum.torproject.org
+
+Will list all the jobs ran on `corsicum` that are still valid
+(?). Note that it will *also* dump all the other jobs, for some
+reason, but at least the `corsicum` jobs will be shown last so they
+can be found more easily.
+
 ## Pager playbook
 
 Hint: see also the [howto/postgresql](howto/postgresql) documentation for the backup