Timeberry - Simple command-line time tracking
tb start [timer] - Start a new timer / resume an existing timer.
tb pause [timer] - Pause an existing timer.
tb discard [timer] - Discard the time info stored in a timer.
tb commit [timer] <message> - Commit the time info as a time tracking entry.
tb status - Show existing timers.
tb log - Show existing time tracking entries.
Application state is stored in ~/.tb-state. Time tracking entries are stored in ~/.tb-entries.