#!/bin/bash
#-------------------------------------------------------------------------------------------------
#$Header$
#-------------------------------------------------------------------------------------------------
#This file is part of "Server Scripts, Automatic Maintenance, Cron", a set of scripts for
#performing automatic periodic maintenance on a Linux server.
#-------------------------------------------------------------------------------------------------
#This source code and any program in which it is compiled/used is provided under the MIT License,
#reproduced below.
#-------------------------------------------------------------------------------------------------
#Permission is hereby granted, free of charge, to any person obtaining a copy of
#this software and associated documentation files(the "Software"), to deal in the
#Software without restriction, including without limitation the rights to use,
#copy, modify, merge, publish, distribute, sublicense, and / or sell copies of the
#Software, and to permit persons to whom the Software is furnished to do so,
#subject to the following conditions :
#
#The above copyright notice and this permission notice shall be included in all
#copies or substantial portions of the Software.
#
#THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
#IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
#FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
#AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
#LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
#OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
#SOFTWARE.
#-------------------------------------------------------------------------------------------------
#This is the cron script, invoked hourly, to perform automatic
#maintenance.  All stdout and stderr output is logged.
#
#The parameters that this script expects are:
#
#    1)Year (4-digit)
#    2)Year (2-digit)
#    3)Month (long text)
#    4)Month (short text)
#    5)Month (2-digit)
#    6)Day of month (2-digit)
#    7)Day of week (long text)
#    8)Day of week (short text)
#    9)Day of week (single digit)
#   10)Hour (24-hour, 2-digit)
#   11)Hour (12-hour, 2-digit)
#   12)AM or PM, as a text string
#   13)Minutes (2-digit)
#   14)Seconds (2-digit)
#
#Change to a safe working directory in case something goes wrong,
#especially a failed cd followed by a mass delete.
cd /root/cronjob_sandbox
#
/etc/cron.custom/scripts/hline_thin
echo "Automatic maintenance nominally beginning on $7, $1/$5/$6 at ${10}:${13}:${14}."
/etc/cron.custom/scripts/hline_thin
ACTUAL_TIMESTAMP=`date`
echo -n "Automatic maintenance actually beginning at "
echo -n ${ACTUAL_TIMESTAMP}
echo "."
/etc/cron.custom/scripts/hline_thin
echo "This maintenance is scheduled hourly; and may include hourly, daily,"
echo "weekly, and monthly maintenance activity (depending on the hour of the"
echo "day, the day of the week, and the day of the month)."
/etc/cron.custom/scripts/hline_thin
#-----------------------------------------------------------------------------
#Establish Booleans to decide which types of maintenance will not and
#will be performed this run.
#
BOOLEAN_HOURLY=1
echo    "HOURLY  maintenance WILL     be performed."

if [ ${10} = "01" ] ; then
   BOOLEAN_DAILY=1
   echo "DAILY   maintenance WILL     be performed."
else
   BOOLEAN_DAILY=0
   echo "DAILY   maintenance WILL NOT be performed."
fi

#
#BOOLEAN_DAILY=1
#Above line for debug only.
#
#Note below:  6 is Saturday, 0 is Sunday.
#
if [ $BOOLEAN_DAILY = "1" ] && [ ${9} = "6" ] ; then
   BOOLEAN_WEEKLY=1
   echo "WEEKLY  maintenance WILL     be performed."
else
   BOOLEAN_WEEKLY=0
   echo "WEEKLY  maintenance WILL NOT be performed."
fi

if [ $BOOLEAN_DAILY = "1" ] && [ ${6} = "01" ] ; then
   BOOLEAN_MONTHLY=1
   echo "MONTHLY maintenance WILL     be performed."
else
   BOOLEAN_MONTHLY=0
   echo "MONTHLY maintenance WILL NOT be performed."
fi

#Debug
#BOOLEAN_WEEKLY=1

/etc/cron.custom/scripts/hline_thin
#-----------------------------------------------------------------------------
#Loop through and do the hourly maintenance.  This involves finding
#all the scripts ending in "hourly" and executing them in alphabetical
#order.
#
#Note on below:  should investigate more reliable alternative using SED.
if [ $BOOLEAN_HOURLY = "1" ] ; then
   HOURLY_FILES=`ls -1 /etc/cron.custom/cronjobs/*|sort|grep .hourly`
   for fname in $HOURLY_FILES
   do
     #Change to a safe working directory in case something goes wrong,
     #especially a failed cd followed by a mass delete.
     cd /root/cronjob_sandbox
     #
     echo "Executing" $fname "as part of hourly maintenance."
     /etc/cron.custom/scripts/hline_thin
     ${fname} ${1} ${2} ${3} ${4} ${5} ${6} ${7} ${8} ${9} ${10} ${11} ${12} ${13} ${14}
     /etc/cron.custom/scripts/hline_thin
     #
     #Change to a safe working directory in case something goes wrong,
     #especially a failed cd followed by a mass delete.
     cd /root/cronjob_sandbox
   done
fi
#-----------------------------------------------------------------------------
#Prepare for the daily, weekly, and monthly maintenance.  This generally
#involves shutting daemons that might interfere with maintenance activities.
#Find all the scripts ending in "premaint" and execute them in alphabetical
#order.
#
#Note on below:  should investigate more reliable alternative using SED.
if [ $BOOLEAN_DAILY = "1" ] || [ $BOOLEAN_WEEKLY = "1" ] || [ $BOOLEAN_MONTHLY = "1" ] ; then
   PREMAINT_FILES=`ls -1 /etc/cron.custom/cronjobs/*|sort|grep .premaint`
   for fname in $PREMAINT_FILES
   do
     #Change to a safe working directory in case something goes wrong,
     #especially a failed cd followed by a mass delete.
     cd /root/cronjob_sandbox
     #
     echo "Executing" $fname "to prepare for daily, weekly, and monthly maintenance."
     /etc/cron.custom/scripts/hline_thin
     ${fname} ${1} ${2} ${3} ${4} ${5} ${6} ${7} ${8} ${9} ${10} ${11} ${12} ${13} ${14}
     /etc/cron.custom/scripts/hline_thin
     #
     #Change to a safe working directory in case something goes wrong,
     #especially a failed cd followed by a mass delete.
     cd /root/cronjob_sandbox
   done
fi
#-----------------------------------------------------------------------------
#Do the daily maintenance.
if [ $BOOLEAN_DAILY = "1" ] ; then
   DAILY_FILES=`ls -1 /etc/cron.custom/cronjobs/*|sort|grep .daily`
   for fname in $DAILY_FILES
   do
     #Change to a safe working directory in case something goes wrong,
     #especially a failed cd followed by a mass delete.
     cd /root/cronjob_sandbox
     #
     echo "Executing daily maintenance script" ${fname}.
     /etc/cron.custom/scripts/hline_thin
     ${fname} ${1} ${2} ${3} ${4} ${5} ${6} ${7} ${8} ${9} ${10} ${11} ${12} ${13} ${14}
     /etc/cron.custom/scripts/hline_thin
     #
     #Change to a safe working directory in case something goes wrong,
     #especially a failed cd followed by a mass delete.
     cd /root/cronjob_sandbox
   done
fi
#-----------------------------------------------------------------------------
#Do the weekly maintenance.
if [ $BOOLEAN_WEEKLY = "1" ] ; then
   WEEKLY_FILES=`ls -1 /etc/cron.custom/cronjobs/*|sort|grep .weekly`
   for fname in $WEEKLY_FILES
   do
     #Change to a safe working directory in case something goes wrong,
     #especially a failed cd followed by a mass delete.
     cd /root/cronjob_sandbox
     #
     echo "Executing weekly maintenance script" ${fname}.
     /etc/cron.custom/scripts/hline_thin
     ${fname} ${1} ${2} ${3} ${4} ${5} ${6} ${7} ${8} ${9} ${10} ${11} ${12} ${13} ${14}
     /etc/cron.custom/scripts/hline_thin
     #
     #Change to a safe working directory in case something goes wrong,
     #especially a failed cd followed by a mass delete.
     cd /root/cronjob_sandbox
   done
fi
#-----------------------------------------------------------------------------
#Do the monthly maintenance.
if [ $BOOLEAN_MONTHLY = "1" ] ; then
   MONTHLY_FILES=`ls -1 /etc/cron.custom/cronjobs/*|sort|grep .monthly`
   for fname in $MONTHLY_FILES
   do
     #Change to a safe working directory in case something goes wrong,
     #especially a failed cd followed by a mass delete.
     cd /root/cronjob_sandbox
     #
     echo "Executing monthly maintenance script" ${fname}.
     /etc/cron.custom/scripts/hline_thin
     ${fname} ${1} ${2} ${3} ${4} ${5} ${6} ${7} ${8} ${9} ${10} ${11} ${12} ${13} ${14}
     /etc/cron.custom/scripts/hline_thin
     #
     #Change to a safe working directory in case something goes wrong,
     #especially a failed cd followed by a mass delete.
     cd /root/cronjob_sandbox
   done
fi
#-----------------------------------------------------------------------------
#Recover from the daily, weekly, and monthly maintenance.  This generally
#involves restarting daemons.  Find all the scripts ending in "postmaint"
#and execute them in alphabetical order.
#
#Note on below:  should investigate more reliable alternative using SED.
if [ $BOOLEAN_DAILY = "1" ] || [ $BOOLEAN_WEEKLY = "1" ] || [ $BOOLEAN_MONTHLY = "1" ] ; then
   POSTMAINT_FILES=`ls -1 /etc/cron.custom/cronjobs/*|sort|grep .postmaint`
   for fname in $POSTMAINT_FILES
   do
     #Change to a safe working directory in case something goes wrong,
     #especially a failed cd followed by a mass delete.
     cd /root/cronjob_sandbox
     #
     echo "Executing" $fname "to recover from daily, weekly, and monthly maintenance."
     /etc/cron.custom/scripts/hline_thin
     ${fname} ${1} ${2} ${3} ${4} ${5} ${6} ${7} ${8} ${9} ${10} ${11} ${12} ${13} ${14}
     /etc/cron.custom/scripts/hline_thin
     #
     #Change to a safe working directory in case something goes wrong,
     #especially a failed cd followed by a mass delete.
     cd /root/cronjob_sandbox
   done
fi
#-----------------------------------------------------------------------------
#Change to a safe working directory in case something goes wrong,
#especially a failed cd followed by a mass delete.
cd /root/cronjob_sandbox
#
ACTUAL_TIMESTAMP=`date`
echo -n "Automatic maintenance actually ending at "
echo -n ${ACTUAL_TIMESTAMP}
echo "."
/etc/cron.custom/scripts/hline_thin
#hline_thick no longer necessary because not concatening logs together, as
#these scripts were changed to be more SSD-friendly.
#/etc/cron.custom/scripts/hline_thick
#
#End of script.