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FROM(1) NetBSD General Commands Manual FROM(1)
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from -- print names of those who have sent mail
from [-s sender] [-f file] [user]
from prints out the mail header lines from the invoker's mailbox.
-f file The supplied file is examined instead of the invoker's mail-
box. If the -f option is used, the user argument should not
-s sender 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.)
The from command appeared in 3.0BSD.
NetBSD 8.0 December 30, 1993 NetBSD 8.0