Geeknote is a command line client for Evernote that can be use on Linux, FreeBSD and OS X.
It allows you to:
create notes in your Evernote account;
create tags, notebooks;
use Evernote search in console with different filters;
edit notes directly in console using any editor: nano, vim, emacs, mcedit;
sync your local files, directories with Evernote;
use Evernote with cron or any scripts.