Command line

tern                     open your mailboxes
tern --demo              explore with a fake mailbox
tern --config <path>     use another config file
tern --init              write an example config to ~/.config/tern/config.toml
tern query <text>        search contacts (mutt query format, for editor completion)
tern contacts sync       pull contacts from every [[dav]] source now
tern auth <account>      sign in with OAuth (Google, Microsoft) in the browser
tern doctor              check every account and server, and say what's wrong

tern

Opens the mail view on the first account’s inbox. It reads ~/.config/tern/config.toml, which must contain at least one [[accounts]] block.

--demo

A fake mailbox, calendar and contacts list. Nothing connects to a server and nothing is saved. Use it to learn the keys.

--config <path>, -c <path>

Use another config file. It combines with the other commands: tern -c work.toml doctor.

--init

Writes a commented example config to the config path. If a file is already there, it leaves it alone and says so.

query <text>

Searches the cached contacts and prints them in the mutt/neomutt query format. The first line is a status line, followed by one line per match:

tern: 2 matches
maya@northwind.io	Maya Okafor	Northwind
maya.o@gmail.com	Maya Okafor	Northwind

The columns are tab-separated: address, name, company. Use it as mutt’s query_command, or in an editor plugin. It reads only the cache, so it’s instant and works offline.

contacts sync

Pulls every address book from every [[dav]] source now, and updates the cache. It prints the count and warns about sources that failed.

auth <account>

OAuth sign-in for the account with that name, matched without regard to case. It opens the provider’s page in your browser, waits for the redirect on a local port, and saves the tokens. See OAuth.

doctor

Checks everything and exits 1 if anything failed. See tern doctor.

--help, -h · --version, -V

Print the usage above, or the version.