09-15-2011
Thanks a lot Corona688 for the info .. Really helpful , can you refer me some links or books if possible about the same, in case you know some..
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LEARN ABOUT OPENSOLARIS
from
from(1B) SunOS/BSD Compatibility Package Commands from(1B)
NAME
from - display the sender and date of newly-arrived mail messages
SYNOPSIS
/usr/ucb/from [-s sender] [username]
DESCRIPTION
The from utility prints out the mail header lines in your mailbox file to show you who your mail is from. If username is specified, user-
name's mailbox is examined instead of your own.
OPTIONS
The following option is supported:
-s sender Only display headers for mail sent by sender.
USAGE
See largefile(5) for the description of the behavior of from when encountering files greater than or equal to 2 Gbyte ( 2^31 bytes).
FILES
/var/mail/*
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWscpu |
+-----------------------------+-----------------------------+
SEE ALSO
biff(1B), mail(1B), attributes(5), largefile(5)
SunOS 5.11 28 Jan 2004 from(1B)