Kevin's Bash Backup Program

backup

#!/bin/bash

# Kevin's BASH Backup Program

# 	- runs every $interval
#		- at midnight moves most recent to daily folder
#		- on first day of the week moves most recent to weekly folder
#		- on first day of the month moves most recent to monthly folder

#		- deletes oldest interval backups after $keepinterval 
#		- deletes oldest weekly backups after $keepweekly
#		- deletes oldest daily backups after $keepdaily 


# CONFIG VARS

interval=15
keepinterval=96
keepdaily=31
keepweekly=52

busource=/testsource
budest=/testbackups


# SETUP
	# make backup directories
if [ ! -d $budest ]; then
	mkdir $budest
fi
if [ ! -d $budest/interval ]; then
	mkdir $budest/interval
fi
if [ ! -d $budest/daily ]; then
	mkdir $budest/daily
fi
if [ ! -d $budest/weekly ]; then
	mkdir $budest/weekly
fi
if [ ! -d $budest/monthly ]; then
	mkdir $budest/monthly
fi


# GET DATE INFO
	# set argument as date, used for testing
if [ ! -z "$1" ]; then
	givendate="-d $1"
fi
datetime=`date +%Y-%m-%d-%H-%M $givendate`
hourminute=`date +%H-%M $givendate`
dayofmonth=`date +%d $givendate`
dayofweek=`date +%w $givendate`
lastdate=`ls -l $budest/interval/ | grep -o '[0-9]\{4\}-[0-9]\{2\}-[0-9]\{2\}-[0-9]\{2\}-[0-9]\{2\}$' | tail -n 1`



# BACKUP COMMANDS

rsync -avh --link-dest=$budest/interval/$lastdate $busource/ $budest/interval/$datetime/ > /dev/null



# MOVE/DELETE FOLDERS
# 	if it's a new day...
if [ "$hourminute" = "00-00" ]; then
	# MOVING...
	# move the most recent interval to daily
	if [ -d $budest/interval/$lastdate ]; then
		mv $budest/interval/$lastdate $budest/daily/
	fi
	# on the first day of the week, move the most recent daily to weekly
	if [ "$dayofweek" = "0" ]; then
		lastdaily=`ls -l $budest/daily/ | grep -o '[0-9]\{4\}-[0-9]\{2\}-[0-9]\{2\}-[0-9]\{2\}-[0-9]\{2\}$' | tail -n 1`
		if [ -d $budest/daily/$lastdaily ]; then
			mv $budest/daily/$lastdaily $budest/weekly/
		fi
	fi
	# on the first day of the month, move the most recent weekly to monthly
	if [ "$dayofmonth" = "01" ]; then
		lastweekly=`ls -l $budest/weekly/ | grep -o '[0-9]\{4\}-[0-9]\{2\}-[0-9]\{2\}-[0-9]\{2\}-[0-9]\{2\}$' | tail -n 1`
		if [ -d $budest/weekly/$lastweekly ]; then
			mv $budest/weekly/$lastweekly $budest/monthly/
		fi
	fi

	# DELETING...
	# remove oldest daily (if more than $keepdaily)
	dailycount=`ls -l $budest/daily/ | grep -o '[0-9]\{4\}-[0-9]\{2\}-[0-9]\{2\}-[0-9]\{2\}-[0-9]\{2\}$' | wc -l`
	if [ "$dailycount" -gt "$keepdaily" ]; then
		oldestdaily=`ls -l $budest/daily/ | grep -o '[0-9]\{4\}-[0-9]\{2\}-[0-9]\{2\}-[0-9]\{2\}-[0-9]\{2\}$' | head -n 1`
		rm -rf /$budest/daily/$oldestdaily
	fi
	# remove oldest weekly (if more than $keepweekly)
	weeklycount=`ls -l $budest/weekly/ | grep -o '[0-9]\{4\}-[0-9]\{2\}-[0-9]\{2\}-[0-9]\{2\}-[0-9]\{2\}$' | wc -l`
	if [ "$weeklycount" -gt "$keepweekly" ]; then
		oldestweekly=`ls -l $budest/daily/ | grep -o '[0-9]\{4\}-[0-9]\{2\}-[0-9]\{2\}-[0-9]\{2\}-[0-9]\{2\}$' | head -n 1`
		rm -rf /$budest/weekly/$oldestweekly
	fi

fi



intervalcount=`ls -l $budest/interval/ | grep -o '[0-9]\{4\}-[0-9]\{2\}-[0-9]\{2\}-[0-9]\{2\}-[0-9]\{2\}$' | wc -l`
# remove oldest interval (if more than $keepinterval)
if [ "$intervalcount" -gt "$keepinterval" ]; then
	oldestinterval=`ls -l $budest/interval/ | grep -o '[0-9]\{4\}-[0-9]\{2\}-[0-9]\{2\}-[0-9]\{2\}-[0-9]\{2\}$' | head -n 1`
	rm -rf /$budest/interval/$oldestinterval
fi

testbackup

#!/bin/bash

rm -rf /testbackups/*
rm -rf /testsource/*

for month in `seq 1 3`; do
	dim=`date -d "2006/$month/1 + 1 month - 1 day" +%d`
	echo "DIM: $dim"
	for day in `seq 1 $dim`; do
		touch /testsource/$day.test
		for hour in `seq 0 23`; do
			for minute in `seq 0 59`; do
				if [ `expr $minute % 15` = "0" ]; then
					echo "testing day-hour-minute: $day-$hour-$minute"
					/BPConnect/bin/bpcbackup "2006-$month-${day}T$hour:$minute:00-0600"
				fi
			done
		done
	done
done
echo "RESULTS"

echo "Interval: Count ($(ls -l /testbackups/interval | wc -l))"
ls /testbackups/interval
echo "Daily: Count ($(ls -l /testbackups/daily | wc -l))"
ls /testbackups/daily/
echo "Weekly: Count ($(ls -l /testbackups/weekly | wc -l))"
ls /testbackups/weekly
echo "Monthly: Count ($(ls -l /testbackups/monthly | wc -l))"
ls /testbackups/monthly