Shell Programming and Scripting

RELEASE=${PATH##*/OCU_}
RELEASE=${RELEASE%%/bin:*}

DEBUGGING=''
WhenToRun="01:00"
ExpirationTime=7 # Number of days

FilesToBackup='*.track* *.xml *.vm* *.gz Trace* TRACE* *.core *.out fcif_data_* esi_error_* *.rollback *.sed R.* APStatus_*log* *.output* send_mail* downenv* check_env* intaspurge_db_* sqlnet.log *.rpt *.html *.csv *.log*'
FilesToDelete='*.log*'
FileLocation='$INTAS_INSTALL_DIR/envsw/logs'

PID_Templates='Trace\([0-9][0-9][0-9][0-9][0-9]\)_.* TRACE_\([0-9][0-9][0-9][0-9][0-9]\)_.* .*_\([0-9][0-9]*\).out'
Progname=$(basename $0)

Usage="Usage:$Progname"'[-a <delete or backup] [-t <time>] [-l|-L <backup location>]' 
     IsCronJob=0
if [[ "$1" = "cron" ]]; then
	. ~/.kshrc
	IsCronJob=1
	if [[ -z "$INTAS_INSTALL_DIR" ]]; then
		echo "You must be logged in as the application owner to delete the middle tier logs"
		return 1
	
fi

BackupLocation="$INTAS_INSTALL_DIR/mt_backup"
TEMPDIR=/tmp
if [[ -d $INTAS_INSTALL_DIR/envsw/tmp ]]; then
	TEMPDIR=$INTAS_INSTALL_DIR/envsw/tmp
fi

mt_clean_errfile="$INTAS_INSTALL_DIR/envsw/logs/mt_clean.$(date +%a)"

cfile=$(/bin/ls -1t $(find $INTAS_INSTALL_DIR -follow -name 'CommonScriptSetup.ksh') | head -1)

if [[ -x $cfile ]]; then
	export PATH=$PATH:$(dirname $cfile)
	. $cfile
else
	echo "Unable to find common include file needed for execution"
        if [[ $IsCronJob -eq 1 ]]; then
	  SendIntasNotifyMail "Middletierclean error message" $mt_clean_errfile
	fi
	return 1
fi
   
while getopts a:t:l:L:d optvar
do
	case $optvar in
	a) FilesToDelete="OPTARG"	   	
	   case $1 in
	     delete)
                           for files in $FileLocation
		 do
		touch $files $files.$(date +%a)
	#       find /intasmut2/envsw/logs -type f -mtime -2 | xargs grep "*.log*"
		rm -f /intasmut2/envsw/logs/$FilesToDelete
		echo -n "MiddleTier Logs are cleaned up"
		done
                ;;
             backup) 	        if [[ ! -d $BackupLocation ]]; then
		    echo "Non-Existed Directory Specified"
		else
		   cp /intasmut2/envsw/logs $BackupLocation
		fi
                ;;
                          esac
	     	
	t) WhenToRun="$OPTARG"
		if [[ $WhenToRun = "never" ]]; then
			WhenToRun='24:00'
		fi
		if [[ $WhenToRun = "now" ]]; then
			IsCronJob=1
			WhenToRun='24:00'
		fi
		if /bin/echo $WhenToRun | egrep '^[0-9]{1,2}:[0-5][0-9]$' >/dev/null; then
		  : Time is correct format
		else
			echo "Incorrect time format, time must be in HH:MM format"
			return $E_INT_INVALID_ARGS
		fi
		;;
	l) BackupLocation="$OPTARG"
		if [[ ! -d $BackupLocation ]]; then
			echo "Non-existant directory specified"
        		if [[ $IsCronJob -eq 1 ]]; then
	  		  SendIntasNotifyMail "Middletierclean error message" $mt_clean_errfile
			fi
			return $E_INT_MISSING_DIR
		fi
		if [[ $BackupLocation != *backup ]]; then
			echo "Appending backup subdirectories"
			BackupLocation=$BackupLocation/backup
			mkdir -p $BackupLocation >/dev/null 2>&1
  		if [[ ! -d $BackupLocation ]]; then
    		echo "Unable to make backup directory: $BackupLocation"
        		if [[ $IsCronJob -eq 1 ]]; then
	  		  SendIntasNotifyMail "Middletierclean error message" $mt_clean_errfile
			fi
			return $E_INT_MISSING_DIR
  		fi
		fi
		l_flag=Y
		Llcron=l
		;;
	L) BackupLocation="$OPTARG"
		Parent=$(expr $BackupLocation : '\(.*\)/.*' \| $BackupLocation)
		if [[ ! -d $Parent ]]; then
			echo "Non-existant directory specified"
        		if [[ $IsCronJob -eq 1 ]]; then
	  		  SendIntasNotifyMail "Middletierclean error message" $mt_clean_errfile
			fi
			return $E_INT_MISSING_DIR
		fi
		if [[ $IsCronJob -eq 1 ]]; then
			BackupLocation=$BackupLocation$(date +%w)
			if [[ ! -d $BackupLocation ]]; then
				mkdir -p $BackupLocation >/dev/null 2>&1
	  		if [[ ! -d $BackupLocation ]]; then
	    		echo "Unable to make backup directory: $BackupLocation"
			  if [[ $IsCronJob -eq 1 ]]; then
	  		    SendIntasNotifyMail "Middletier error message" $mt_clean_errfile
			  fi
			  return $E_INT_MISSING_DIR
	  		fi
			fi
			fi
		L_flag=Y
		Llcron=L
		;;
	d) DEBUGGING='/bin/echo'
		;;
        
	*) echo $Usgae
	   return 1
		;;
	esac
done
(( optcount = OPTIND - 1 ))
shift $optcount

if [[ -z "$1" ]]; then
  echo $Usage
  echo
  echo 'This command will schedule an INTAS cleanup at a certain time of the day'
  echo 'The time is given with the -t option and its default is 1am'
	echo "A time of 'now' means to execute the cleanup operation now"
  echo "A time of 'never' means that the cleanup operation should not be scheduled"
  echo "and any existing cleanup or the specified environments/centers should be cancelled"
  echo 'A backup location can be specified with the -l option. This is the directory'
  echo 'where files are moved that are older than 1 day.  The default is '"$INTAS_INSTALL_DIR/backup."
	echo 'Instead of -l, you can use -L to specify a 7-day backup directory rotation.'
  echo
  echo 'A file expiration interval is set with the -e option. Files older than this'
  echo 'number of days will be removed from the backup areas'
  echo
   echo "More than one cleanup can be scheduled as long as each cleanup is different"
  echo "e.g. "$Progname all" and "$Progname prd all" can both be run at the same or different times"
  echo
  echo "Typical usage: $Progname -t 2:00 -e 14 prd all"
  echo "This will schedule backups at 2am each night, purge files more than 14 days old"
  echo "and backup all centers in the prd environment"
  echo
	echo "Alternatively: $Progname -t now -e 14 prd all"
	echo "This will execute intasclean right now for one time"
  echo
  return $E_INT_INVALID_ARGS
fi

#Unzip the file under backup directory
/usr/contrib/bin/gunzip -r $BackupLocation

if [[ "$L_flag" = "Y" && "$l_flag" = "Y" ]]; then
	echo 'You can not specify both -l and -L options.'
	if [[ $IsCronJob -eq 1 ]]; then
	    SendIntasNotifyMail "Middletierclean error message" $mt_clean_errfile
	fi
	return 1;
fi

if [[ ! -d $BackupLocation && -w $BackupLocation ]]; then
  echo 'The backup location does not exist or is not writable'
  if [[ $IsCronJob -eq 1 ]]; then
    SendIntasNotifyMail "Middletierclean error message" $mt_clean_errfile
  fi
  return 1
fi

cd /
if whence $Progname >/dev/null; then
	: We found this program in the path
else
	echo "Unable to locate $Progname in the PATH, check the .kshrc for correctness"
        if [[ $IsCronJob -eq 1 ]]; then
    	  SendIntasNotifyMail "Middletierclean error message" $mt_clean_errfile
   	fi
	return $E_INT_NO_FILE
fi

arg1=$1
arg2=$2

cd $INTAS_INSTALL_DIR/envsw
if [[ $? != 0 ]]; then
	echo "Unable to cd to $INTAS_INSTALL_DIR/envsw, exiting..."
        if [[ $IsCronJob -eq 1 ]]; then
    	  SendIntasNotifyMail "Middletierclean error message" $mt_clean_errfile
   	fi
	return $E_INT_MISSING_DIR
fi

dirlist=""
for dir in $DirCleanupList
do
	if [[ -d $dir ]]; then
		dirlist="$dirlist $dir"
	fi
done
DirCleanupList=$dirlist

if [[ -z "$DirCleanupList" ]]; then
	echo "No directories to clean up"
        if [[ $IsCronJob -eq 1 ]]; then
    	  SendIntasNotifyMail "Middletierclean error message" $mt_clean_errfile
   	fi
	return 1
fi

echo "Start middletierclean at $(date)"

echo "Cleaning the following dirs:"
echo "$DirCleanupList" | perl -ne 'print join("\n", split(" ")) . "\n"; '

if [[ $IsCronJob -ne 1 ]]; then
  # We are not a cron job, install a line into the crontab
	if (crontab -l 2>&1 1>/dev/null | grep 'not authorized'); then
		echo "Unable to use cron, contact your system administrator"
		echo "Check that $(whoami) has an entry in cron.allow"
		return 1
	fi
	cronfile="$TEMPDIR/cur_crontab$$"
	crontab -l 2>&1 | grep -v '^crontab' >$cronfile
	if grep "$Progname cron .* $arg1 $arg2" $cronfile >/dev/null; then
		tmpvar=$(grep -v "$Progname cron.*$arg1 $arg2" $cronfile)
		echo "$tmpvar" >$cronfile
	fi
	if [[ $WhenToRun != 24:00 ]]; then
		Llcron=l
		minute=$(/bin/echo $WhenToRun | cut -d: -f2)
		hour=$(/bin/echo $WhenToRun | cut -d: -f1)
		if [[ -z "$DEBUGGING" ]]; then
			echo "$minute $hour" '* * *' ". ~/.kshrc; $(whence $Progname) cron -e $FileLocation -$Llcron $BackupLocation $arg1 $arg2" >>$cronfile
		else
			echo "$minute $hour" '* * *' ". ~/.kshrc; $(whence $Progname) cron -d -e $FileLocation -$Llcron $BackupLocation $arg1 $arg2" >>$cronfile
		fi
	fi
	crontab $cronfile >/dev/null 2>&1
	if crontab -l | diff - $cronfile >/dev/null; then
		if [[ $WhenToRun != 24:00 ]]; then
			echo crontab has been installed correctly
		else
			echo The crontab entry for \"$arg1 $arg2\" has been removed
		fi
	else
	  echo "Error installing crontab file"
	fi
	/bin/rm -f $cronfile
  
echo "End middletierclean at $(date)"
return $E_NO_ERROR