This tool gives file-level control over the mailboxes used by cyrus imap.
It does a subset of the things that cyrctl is able to do, but has several
advantages:

• Convenience: no need to configure passwords and authenticate just to perform maintenance on cyrus’s datastore. Especially useful within scripts and cron jobs.
• Independance: all operations can be performed regardless of whether imapd has been started.
• Speed: when performing lots of small operations, this tool saves the large overhead of socket communications and authentication.

These great points are offset by one disadvantage:

• Not written or maintained by official cyrus people: This means there could be lurking bugs because the cyrus codebase is, frankly, a severely underdocumented mess, and I am not entirely confident that I managed to discover all the rules and prerequisites for calling their functions. Bug reports are very much appreciated.