notify(1) (Essential Utilities) notify(1)
NAME
notify - notify user of the arrival of new mail
SYNOPSIS
notify -y [ -m mailfile ]
notify [ -n ]
DESCRIPTION
When a new mail message arrives, the mail command first checks if the
recipient's mailbox indicates that the message is to be forwarded
elsewhere (to some other recipient or as the input to some command).
notify is used to set up forwarding on the user's mailbox so that the
new message is saved into an alternative mailbox and, if the user is
currently logged in, he or she is notified immediately of the arrival
of new mail.
Command-line options are:
-m mailfile File to save mail messages into while automatic
notification is activated. If not specified, it defaults
to $HOME/.mailfile.
-n Remove mail notification facility
-y Install mail notification facility
If invoked with no arguments, notify reports whether automatic mail
notification is activated or not.
The notification is done by looking in /var/adm/utmp to determine if
the recipient is currently logged in, and if so, on which terminal
device. Then the terminal device is opened for writing and the user
is notified about the new message. The notification will indicate
who the message is from. If the message contains a Subject: header
line it will be included. (For security, all unprintable characters
within the header will be converted to an exclamation point.)
If the user is logged in multiple times he or she will get multiple
notifications, one per terminal. To disable notifications to a
particular login session, the mesg(1) command can be used to disable
writing to that terminal.
If there are multiple machines connected together via RFS or NFS,
notify will look up the /var/adm/utmp files on the other systems as
well. To do this, the file /etc/mail/notify.sys will be consulted,
which will contain two columns, the first being the name of a system
and the second being a path to find the root filesystem for that
machine.
If notify has troubles delivering the mail to the specified mailfile,
notify will look up the directory of the mailfile in
/etc/mail/notify.fsys. If the file's directory is found in the first
column of the file, the mail will be forwarded to the system listed
in the second column instead of being returned to the sender.
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notify(1) (Essential Utilities) notify(1)
FILES
/tmp/notif* temporary file
/var/mail/* users' standard mailboxes
/usr/lib/mail/notify2
program that performs the notification
/etc/mail/notify.fsys
list of file systems and home systems
/etc/mail/notify.sys
list of machines and paths to their root
filesystems
/var/adm/utmp list of users who are logged in
SEE ALSO
mail(1), mesg(1).
User's Guide.
NOTES
Because notify uses the ``Forward to |command'' facility of mail to
implement notifications, /var/mail/username should not be specified
as the place to put newly arrived messages via the -m invocation
option. The mail command uses /var/mail/username to hold either mail
messages, or indications of mail forwarding, but not both
simultaneously.
If the user is using layers(1), the notification will only appear in
the login window.
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