Nandroid Backup Script

#!/sbin/sh -x
## This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU Library General Public License as published
# by the Free Software Foundation; either version 2, or (at your option)
# any later version.
## This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
## License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl.html>
BB=/sbin/busybox;
YAFF=/sbin/mkyaffs2image;
DATA=/dev/block/stl10;
DUMP=cat;
SYS=/dev/block/stl9;
CHE=/dev/block/stl11;
SD=/dev/block/mmcblk0p1;
BOOT=/dev/block/bml7;
RECOV=/dev/block/bml8;
DATE=`date +.%m.%d.%Y.%I:%M`;
BU=/sdcard/clockworkmod/backup/$DATE;
OUTFD=$(ps | grep -v "grep" | grep -o -E "update_binary(.*)" | cut -d " " -f 3);
ui_print() {
  if [ $OUTFD != "" ]; then
    echo "ui_print ${1} " 1>&$OUTFD;
    echo "ui_print " 1>&$OUTFD;
  else
    echo "${1}";
  fi;
}
$BB mount $DATA /data;
$BB mount $SD /sdcard;
#exec > /sdcard/backup.log 2>&1
$BB mount $SYS /system;
$BB mount $CHE /cache;
$BB test -d $BU || $BB mkdir $BU;
$BB rm -rf $BU/*;
cd $BU && ui_print "Backing up Boot Kernel" && $DUMP $BOOT > boot.img && ui_print "Backing up Recovery Kernel" && $DUMP $RECOVERY > recovery.img;
ui_print "Backing up System" && $YAFF /system $BU/system.img && ui_print "Backing up Data" && $YAFF /data $BU/data.img && ui_print "Backing up Cache" && $YAFF /cache $BU/cache.img && ui_print "Backing up .android_secure" && $YAFF /sdcard/.android_secure $BU/.android_secure.img;
ui_print "Generating MD5" && $BB md5sum *img > $BU/nandroid.md5;