system/anacron: Added to 12.0 repository
This commit is contained in:
Michael Wagner
Robby Workman
parent
a7622c3887
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anacron (periodic command scheduler)
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anacron is a periodic command scheduler. It executes commands at
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intervals specified in days. Unlike cron, it does not assume that the
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system is running continuously. It can therefore be used to control
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the execution of daily, weekly and monthly jobs (or anything with a
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period of n days), on systems that don't run 24 hours a day. When
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installed and configured properly, Anacron will make sure that the
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commands are run at the specified intervals as closely as
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machine-uptime permits.
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Every time Anacron is run, it reads a configuration file that
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specifies the jobs Anacron controls, and their periods in days. If a
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job wasn't executed in the last n days, where n is the period of that
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job, Anacron executes it. Anacron then records the date in a special
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timestamp file that it keeps for each job, so it can know when to run
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it again. When all the executed commands terminate, Anacron exits.
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It is recommended to run Anacron from the system boot-scripts. For
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example, add the following lines to /etc/rc.d/rc.local:
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if [ -x /usr/sbin/anacron -a -f /etc/anacrontab ]; then
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/usr/sbin/anacron -s > /dev/null 2>&1
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fi
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This way the jobs "whose time has come" will be run shortly after the
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machine boots. A delay can be specified for each job so that the
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machine isn't overloaded at boot time.
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In addition to running Anacron from the boot-scripts, it is also
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recommended to schedule it as a daily cron-job (usually at an early
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morning hour), so that if the machine is kept running for a night,
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jobs for the next day will still be executed.
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See anacron (8), anacrontab (5) and /usr/doc/anacron-2.3/README
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for further information.
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#!/bin/sh
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# Slackware build script for anacron
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# (C) 2007 Michael Wagner <lapinours@web.de>
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# All rights reserved.
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#
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# Redistribution and use of this script, with or without modification, is
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# permitted provided that the following conditions are met:
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#
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# 1. Redistributions of this script must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ''AS IS'' AND ANY EXPRESS OR IMPLIED
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# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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PRGNAM=anacron
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VERSION=2.3
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ARCH=${ARCH:-i486}
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BUILD=${BUILD:-2}
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TAG=${TAG:-_SBo}
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CWD=$(pwd)
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TMP=${TMP:-/tmp/SBo}
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PKG=$TMP/package-$PRGNAM
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OUTPUT=${OUTPUT:-/tmp}
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DOCS="COPYING ChangeLog README TODO"
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# Omit -O2 as it is already included in the Makefile
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if [ "$ARCH" = "i486" ]; then
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SLKCFLAGS="-march=i486 -mtune=i686"
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elif [ "$ARCH" = "i686" ]; then
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SLKCFLAGS="-march=i686 -mtune=i686"
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fi
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set -e
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rm -rf $PKG
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mkdir -p $TMP $PKG $OUTPUT
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cd $TMP
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rm -rf $PRGNAM-$VERSION
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tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
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cd $PRGNAM-$VERSION
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chown -R root:root .
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chmod -R u+w,go+r-w,a-s .
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# Use $SLKCFLAGS
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sed -i "s,\(`grep -m 1 CFLAGS Makefile`\),\1 $SLKCFLAGS," Makefile
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# "Patch" gregor.c
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sed -i 's,const int isleap,int isleap,' gregor.c
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make
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make install PREFIX=$PKG
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strip --strip-unneeded $PKG/usr/sbin/$PRGNAM 2> /dev/null
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for i in $PKG/usr/man/man?/*; do
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chmod 644 $i && gzip -9 $i 2> /dev/null
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done
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mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
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cp -a $DOCS $PKG/usr/doc/$PRGNAM-$VERSION
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cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
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chmod 644 $PKG/usr/doc/$PRGNAM-$VERSION/*
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# Install a default /etc/anacrontab file
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mkdir -p $PKG/etc
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cat $CWD/anacrontab.new > $PKG/etc/anacrontab.new
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mkdir -p $PKG/install
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cat $CWD/slack-desc > $PKG/install/slack-desc
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cat $CWD/doinst.sh > $PKG/install/doinst.sh
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cd $PKG
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/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.tgz
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PRGNAM="anacron"
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VERSION="2.3"
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HOMEPAGE="http://anacron.sourceforge.net"
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DOWNLOAD="http://downloads.sourceforge.net/anacron/anacron-2.3.tar.gz"
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MD5SUM="865cc1dfe1ed75c470d3e6de13763f03"
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MAINTAINER="Michael Wagner"
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EMAIL="lapinours@web.de"
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APPROVED="rworkman"
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# /etc/anacrontab example
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# See the anacrontab(5) manpage
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SHELL=/bin/sh
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PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
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# format: period delay job-identifier command
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1 5 cron.daily run-parts /etc/cron.daily
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7 10 cron.weekly run-parts /etc/cron.weekly
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30 15 cron.monthly run-parts /etc/cron.monthly
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@ -0,0 +1,16 @@
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# Handle configuration files
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config() {
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NEW="$1"
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OLD="$(dirname $NEW)/$(basename $NEW .new)"
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# If there's no config file by that name, mv it over:
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if [ ! -r $OLD ]; then
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mv $NEW $OLD
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elif [ "$(cat $OLD | md5sum)" = "$(cat $NEW | md5sum)" ]; then # toss the redundant copy
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rm $NEW
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fi
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# Otherwise, we leave the .new copy for the admin to consider...
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}
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# List of configuration files (they should end in .new)
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config etc/anacrontab.new
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@ -0,0 +1,19 @@
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# HOW TO EDIT THIS FILE:
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# The "handy ruler" below makes it easier to edit a package description. Line
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# up the first '|' above the ':' following the base package name, and the '|'
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# on the right side marks the last column you can put a character in. You must
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# make exactly 11 lines for the formatting to be correct. It's also
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# customary to leave one space after the ':'.
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|-----handy-ruler------------------------------------------------------|
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anacron: anacron (periodic command scheduler)
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anacron:
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anacron: anacron executes commands at intervals specified in days.
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anacron: Unlike cron, it does not assume that the system is running
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anacron: continuously. It can therefore be used to control the execution of
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anacron: daily, weekly and monthly jobs (or anything with a period of n days),
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anacron: on systems that don't run 24 hours a day.
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anacron:
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anacron: Homepage: http://anacron.sourceforge.net
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anacron:
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anacron:
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