serverscripts/check_updates_deb

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#!/bin/bash
# Script Name: check_updates_deb
# Author Name: Matt McKinnon
# Date: 7th June 2016
# Description: For use on Debian Based Systems
# This script will:
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# Clean up the local apt repository of retrieved packages (apt-get clean)
# Resync the package index (apt-get update)
# If called with AUTOUPDATE set to yes then updates will be downloaded and applied with no feed back (not recommended)
# If called without AUTOUPDATE then packages are downloaded and an email is sent informing which packages are to be updated.
# And more ;-)
# NOTE: Perl is needed for this script to work.
#
# Make user configuration changes in this section
#
MAILTO="support@comprofix.com"
MAILFROM="support@comprofix.com"
THISSERVER=$(hostname -f)
SMTP="mail.comprofix.com"
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AUTOUPDATE="no"
LOGFILE="/var/log/server_maint.log"
THISSERVER=$(hostname -f)
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#
# End of user configuration section
#
DASHES="---------------------------------------------------------------------------------"
DASHES2="================================================================================="
# Check if the script is being run as root exit if it is not.
if [ $(id -u) -ne 0 ]
then
echo "You need to be root to run this script."
exit 1
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fi
startlogging() {
echo $DASHES2 >> $LOGFILE
echo "$0 started running at $(date)" >> $LOGFILE
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echo $DASHES2 >> $LOGFILE
}
stoplogging() {
echo "$(date) [MESSAGE] $0 finished runnning" >> $LOGFILE
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echo $DASHES >> $LOGFILE
}
check_return() {
if [ "$?" -ne "0" ]
then
echo "$(date) [ERROR] $1 failed to run" >> $LOGFILE
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send_error_email $1
stoplogging
exit 1
fi
echo "$(date) [SUCCESS] $1 ran without error" >> $LOGFILE
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}
send_error_email() {
sendemail -o tls=no -s $SMTP -t $MAILTO -f "$THISSERVER <$MAILFROM>" -u "[$THISSERVER] There was an error whilst running $0" -m "
Hello,
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Whilst running the update script ($0) on $THISSERVER there was a problem.
[ERROR] "$1" failed to run
Please log in via ssh (e.g. ssh root@$(hostname -f)) and check the log file:
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vim $LOGFILE
Regards." -q
}
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startlogging
apt-get clean > /dev/null
check_return "apt-get clean"
apt-get update > /dev/null
check_return "apt-get update"
if [[ "$AUTOUPDATE" == "yes" ]]
then
apt-get -yqq upgrade > /dev/null
check_return "apt-get -yq upgrade"
else
PACKAGES_TO_BE_UPGRADED=$(apt-get -Vs upgrade | perl -ne 'print if /upgraded:/ .. /upgraded,/')
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apt-get -yqd upgrade > /dev/null
check_return "apt-get -yqd upgrade"
fi
if [[ -z $PACKAGES_TO_BE_UPGRADED ]]
then
echo "$(date) [MESSAGE] No packages need updating." >> $LOGFILE
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else
echo "
Hello,
Packages have been downloaded onto $THISSERVER.
$PACKAGES_TO_BE_UPGRADED
To update the server log in via ssh (e.g. ssh root@$(hostname -f)) and run the following command:
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apt-get upgrade
See the logfile for more info: vim $LOGFILE
Regards. " >/tmp/servermail.msg
sendemail -o tls=no -s $SMTP -t $MAILTO -f "$THISSERVER <$MAILFROM>" -u "[$THISSERVER] server may need some updates applied" -m "$(cat /tmp/servermail.msg)" -q
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echo "$(date) [MESSAGE] Packages need updating email sent to $MAILTO" >> $LOGFILE
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fi
stoplogging
exit 0