You have mail, Terminal says from time to time.
There's an internal mail delivery system that certain system services make use of to deliver messages to the user, maybe errors or warnings, that would otherwise be lost. One example is the output of cron jobs; as they run in the background, there's no way to notify the user.
These "mails" are stored at
/var/mail/$USER. (You can run
echo $USER in Terminal to see what username is being used for the current user.)
The brute force way is to browse the original content of the emails.
A better way is to use the
mail # Mail version 8.1 6/6/93. Type ? for help. # "/var/mail/nono": 3 messages 3 new # >N 1 nono@abawrihf Fri Jul 15 12:26 19/856 "Cron <nono@abawrihf> cd ~/Desktop/some-dir && zip -qr9 ... # N 2 nono@abawrihf Fri Jul 15 12:27 19/856 "Cron <nono@abawrihf> cd ~/Desktop/some-dir && zip -qr9 ... # N 3 nono@abawrihf Fri Jul 15 12:28 19/906 "Cron <nono@abawrihf> cd ~/Desktop/some-dir && zip -qr9 ...
2to show that message, for instance.
exitto terminate the
sudo rm /var/mail/$USER
Then your inbox will be empty.
mail # No mail for nono