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authorThomas Morper <thomas@beingboiled.info>2013-11-11 09:53:01 -0600
committerRobby Workman <rworkman@slackbuilds.org>2013-11-11 10:53:37 -0600
commit8c53779c5fa37234ede9a5ebf5716430f8c4155d (patch)
tree45feef101b0e6634e69ef3813635077d7fef17ce /network/exim/manpages/exim_lock.8
parentd47d9c47f695566e89beb63d219ec876084c6bf5 (diff)
downloadslackbuilds-8c53779c5fa37234ede9a5ebf5716430f8c4155d.tar.gz
network/exim: Updated for version 4.82.
Signed-off-by: Robby Workman <rworkman@slackbuilds.org>
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-.\" Hey, EMACS: -*- nroff -*-
-.\" First parameter, NAME, should be all caps
-.\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
-.\" other parameters are allowed: see man(7), man(1)
-.TH EXIM_LOCK 8 "March 26, 2003"
-.\" Please adjust this date whenever revising the manpage.
-.\"
-.\" Some roff macros, for reference:
-.\" .nh disable hyphenation
-.\" .hy enable hyphenation
-.\" .ad l left justify
-.\" .ad b justify to both left and right margins
-.\" .nf disable filling
-.\" .fi enable filling
-.\" .br insert line break
-.\" .sp <n> insert n+1 empty lines
-.\" for manpage-specific macros, see man(7)
-.\" \(oqthis text is enclosed in single quotes\(cq
-.\" \(lqthis text is enclosed in double quotes\(rq
-.SH NAME
-exim_lock \- Mailbox maintenance
-.SH SYNOPSIS
-.B exim_lock
-.RI [ options ] mailbox-file
-
-.SH DESCRIPTION
-The
-.B exim_lock
-utility locks a mailbox file using the same algorithm as Exim.
-For a discussion of locking issues, see section 25.2.
-.B exim_lock
-can be used to prevent any modification of a mailbox by Exim or a user
-agent while investigating a problem.
-The utility requires the name of the file as its first argument.
-If the locking is successful, the second argument is run as a command
-(using C's \(lqsystem()\(rq function); if there is no second argument, the value
-of the SHELL environment variable is used; if this is unset or empty,
-/bin/sh is run.
-When the command finishes, the mailbox is unlocked and the utility ends.
-The following options are available:
-.TP
-.I \-fcntl
-Use \(lqfcntl()\(rq locking on the open mailbox.
-.TP
-.I \-interval
-This must be followed by a number, which is a number of seconds; it
-sets the interval to sleep between retries (default 3).
-.TP
-.I \-lockfile
-Create a lock file before opening the mailbox.
-.TP
-.I \-mbx
-Lock the mailbox using MBX rules.
-.TP
-.I \-q
-Suppress verification output.
-.TP
-.I \-retries
-This must be followed by a number; it sets the number of times to try
-to get the lock (default 10).
-.TP
-.I \-timeout
-This must be followed by a number, which is a number of seconds; it
-sets a timeout to be used with a blocking \(lqfcntl()\(rq lock.
-If it is not set (the default), a non-blocking call is used.
-.TP
-.I \-v
-Generate verbose output.
-
-If none of
-.I \-fcntl, \-lockfile
-or
-.I \-mbx
-are given, the default is to create a lock file and also use \(lqfcntl()\(rq locking
-on the mailbox, which is the same as
-.B Exim's
-default.
-The use of
-.I \-fcntl
-requires that the file be writable; the use
-of
-.I \-lockfile
-requires that the directory containing the file be writable.
-Locking by lock file does not last for ever; Exim assumes that a lock file
-is expired if it is more than 30 minutes old.
-
-The
-.I \-mbx
-option is mutually exclusive with
-.I \-fcntl.
-It causes a shared lock to be taken out on the open mailbox, and an
-exclusive lock on the file /tmp/.n.m where n and m are the device number
-and inode number of the mailbox file.
-When the locking is released, if an exclusive lock can be obtained for the
-mailbox, the file in /tmp is deleted.
-
-The default output contains verification of the locking that takes place.
-The
-.I \-v
-option causes some additional information to be given.
-The
-.I \-q
-option suppresses all output except error messages.
-.PP
-A command such as
-
- exim_lock /var/spool/mail/spqr
-
-runs an interactive shell while the file is locked, whereas
-
- exim_lock \-q /var/spool/mail/spqr <<End
- <some commands>
- End
-
-runs a specific non-interactive sequence of commands while the file is
-locked, suppressing all verification output.
-A single command can be run by a command such as
-
- exim_lock \-q /var/spool/mail/spqr \
- "cp /var/spool/mail/spqr /some/where"
-
-Note that if a command is supplied, it must be entirely contained within
-the second argument - hence the quotes.
-
-.SH BUGS
-This manual page needs a major re-work. If somebody knows better groff
-than us and has more experience in writing manual pages, any patches
-would be greatly appreciated.
-
-.SH SEE ALSO
-.BR exim (8)
-
-.SH AUTHOR
-This manual page was stitched together from spec.txt by
-Andreas Metzler <ametzler at downhill.at.eu.org>,
-for the Debian GNU/Linux system (but may be used by others).