require the at option when scheduling backups

[neovintage]

Small UX problem whereby someone creates a schedule and then issues the same command without the at flag thinking they could view schedules. The schedule is overwritten and set back to 4:00 UTC.

/cc @uhoh-itsmaciek @chadbailey59

What do you guys think?

[msakrejda]

Interesting idea. It seems weird to have required flags (options are usually... optional), but it might make sense here. Are there other instances of this behavior in the CLI?

[jdx]

perhaps prompt if no time is scheduled instead of forcing them to run the command again?

[neovintage]

@uhoh-itsmaciek I quickly grep-ed across codebase and didn't see it being done anywhere else. I wouldn't want to be the first one to start requiring options.

@dickeyxxx That's a good idea.