ftpshut - close down the ftp servers at a given time
ftpshut [ -V ] [ -l min] [ -d min] time [ warning-message
The ftpshut command provides an automated shutdown proce
dure that a superuser can use to notify ftp users when the
ftp server is shutting down.
The -V option causes the program to display copyright and
version information, then terminate.
The time is the time at which ftpshut will bring the ftp
servers down. It may be the word `now', indicating an
immediate shutdown, or specify a future time in one of two
formats: + number or HHMM. The first form brings the ftp
servers down in number minutes. The second brings the ftp
servers down at the time of day indicated, using a 24-hour
Ten minutes before shutdown, or immediately if ftpshut is
timed for less than ten minutes, new ftp access will be
disabled. This time may be adjusted through the -l flag.
Five minutes before shutdown, or immediately if ftpshut is
timed for less than five minutes, all current ftp connec
tions will be disconnected. This time may be adjusted
through the -d flag.
The [ warning-message ... ] will be formatted to be 75
characters wide. ftpshut knows about the actual string
length of the magic cookies.
Running this command will create a file that the server
will use to determine when to shutdown. Once the shutdown
has occured, the server will continue to refuse connec
tions until this file is removed. The location of this
file is specified by the shutdown stanza in the ftpaccess
The following magic cookies are available:
%s time system is going to shut down
%r time new connections will be denied
%d time current connections will be dropped
%C current working directory
%E the maintainer's email address as defined in ftpaccess
%F free space in partition of CWD (kbytes)
[not currently supported on all systems]
%L local host name
%M maximum allowed number of users in this class
%N current number of users in this class
%R remote host name
%T local time (form Thu Nov 15 17:12:42 1990)
%U username given at login time
You can kill the servers only between now and 23:59, if
you use the absolute time.
shutdown(1), ftpaccess(5), ftprestart(8)