How to execute command in the cron?

[itnick]

I am able to execute the command in Terminal like this:
php artisan doSomething

Is the followings correct to execute the command within the cron?

This is my global.php:

Event::listen('cron.collectJobs', function() {
Cron::add('doSomething', '* * * * *', function() {
// Run every minute
Artisan::call('doSomething');
return null;
});
});

But php artisan cron:run always return -1:
+------------+---------+----------+--------+------+
| Run date | In time | Run time | Errors | Jobs |
+------------+---------+----------+--------+------+
| 1402831170 | -1 | -1 | 0 | 0 |
+------------+---------+----------+--------+------+

[itnick]

Ah... I just solved it.
There's was a lock file generate in app/storage folder.
It works after I remove it.