from [-c] [-f file] [-s sender] [user]
The from utility prints out the mail header lines from the invoker's
The following options are available:
-c Just print a count of messages and exit.
The supplied file is examined instead of the invoker's mailbox.
If the -f option is used, the user argument should not be used.
Read from standard input if file name ``-'' is given.
Only mail from addresses containing the supplied string are
If user is given, the user's mailbox is examined instead of the invoker's
own mailbox. (Privileges are required.)
MAIL If set, the location of the invoker's mailbox. Otherwise, the
default in /var/mail is used.
The from command appeared in 3.0BSD.
BSD December 30, 1993 BSD
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