To determine whom mail is from.
from [ -d Directory ] [ -s Sender ]
The from command displays the message headings in your mailbox file to show you whom mail is from. If you specify User, the User mailbox is examined instead of your own (provided that you have read permission to User's mailbox).
-d Directory | Specifies the system mailbox directory. |
-s Sender | Prints message headers only for mail sent by Sender. |
from
The names of the senders and message dates are displayed.
from dawn
In this example, the message headings from user dawn's mailbox are displayed (provided that you have read permission to dawn's mailbox).
/var/spool/mail/* | System mailboxes for all users. |
/usr/bin/from | User mailbox files. |
The mail command.
Mail Overview in AIX 5L Version 5.2 System User's Guide: Communications and Networks.