Basic Linux Configuration backup

#!/bin/bash
# Title: Linux Primary Configuration Backup
# Version: 1.5
# Last update: 06-08-2012
# Author: Hareesh V V
# E Mail: tux.psycho@gmail.com
# Web: http://www.psychotux.com

DATE=`date +%d%m%y`
BKP=~/`hostname`.BACKUPS_$DATE
/bin/mkdir -p $BKP

tar -cjf $BKP/etc_$DATE.tar.bz2 /etc
/sbin/ifconfig > $BKP/ifconfig
/sbin/route -n > $BKP/route
/sbin/runlevel > $BKP/runlevel
/sbin/chkconfig --list | grep 3:on > $BKP/chkconfig_init_3
/sbin/chkconfig --list | grep 5:on > $BKP/chkconfig_init_5
/bin/hostname > $BKP/hostname
lsmod > $BKP/lsmod
cat /etc/hosts > $BKP/etc_hosts
cat /etc/resolv.conf > $BKP/etc_resolv 
cat /etc/grub.conf > $BKP/grub_conf 
#crontab -l > $BKP/crontab
/sbin/iptables -L  > $BKP/iptables_filter
/sbin/iptables -t nat -L > $BKP/iptables_nat
/sbin/iptables-save > $BKP/iptables
cat /etc/sysconfig/iptables-config > $BKP/iptables-config

/bin/netstat -ntpl > $BKP/netstat
mount > $BKP/mount
fdisk -l > $BKP/fdisk
cat /etc/rc.local > $BKP/rc_local
cat /proc/sys/net/ipv4/ip_forward > $BKP/proc_ip_forward
cat /proc/cpuinfo > $BKP/proc_cpuinfo
getenforce > $BKP/getenforce
cat /etc/fstab > $BKP/fstab
cp -r /etc/sysconfig/network-scripts $BKP/
cat /etc/sysconfig/network > $BKP/network
echo $PATH > $BKP/path

## Hardware
/usr/sbin/hwinfo

/sbin/lspci > $BKP/lspci
/usr/bin/lsb_release > $BKP/lsb_release
/usr/sbin/dmidecode > $BKP/dmidecode
/usr/bin/getconf LONG_BIT > $BKP/getconf
/usr/bin/systool > $BKP/systool
/usr/bin/lshal > $BKP/lshal
/sbin/lsusb -t > $BKP/lsusb
/usr/sbin/biosdecode > $BKP/biosdecode
lshw > $BKP/lshw
cat /proc/version > $BKP/version
cat /etc/printcap > $BKP/printcap
dmesg > $BKP/dmesg
cat /etc/sysconfig/hwconf > $BKP/hwconf


## CRON Backup
mkdir $BKP/`hostname`_crons
cd $BKP/`hostname`_crons
OUT=$BKP/`hostname`_crons
> crons.txt
> $OUT/cronlist
for i in `ls /var/spool/cron/`
do
   grep $i /etc/passwd
   if [ $? = 0 ]
   then
                {
                 crontab -u $i -l >> $OUT/$i.cron
crontab -u $i -l | grep -v "^#" | sort | uniq | awk {'print $6'} >> crons.txt
crontab -u $i -l | grep -v "^#" | sort | uniq | awk {'print $7'} >> crons.txt
                 crontab -u $i -l | grep -v "^#" | sort | uniq | awk {'print $8'} >> crons.txt
                }
   fi
done

for i in `cat crons.txt`
do
  cp $i $OUT 2> /dev/null
done
cd
tar -cjf $OUT.tar.bz2 $OUT
tar -cjf $BKP.tar.bz2 $BKP
cd $BKP/`hostname`_crons
rm -rf crons.txt $OUT
rm -rf $BKP