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11. Backing Up Windows Machines to a Linux Host

Adam Neat ( [email protected]) kindly contributed the following script to back up Windows machines to a Linux host, using the smbclient utility. Adam says that it is used to backup Windows 3.x and NT machines to a Linux based DAT SCSI Drive.

Adam is not proud of the coding style used here, but it works. As I like to say, "If it works and its stupid, then it is not stupid".

Another Windows backup script, contributed by Dan Tager ( [email protected]), is provided below. Dan's script also backs up Unix machines via rsh, although that could be modified to use ssh rather easily.

In this script, the string 'agnea1' is the username on the Linux machine that does the backups.

---

#!/bin/bash

clear
echo Initialising ...
checkdate=`date | awk '{print $1}'`

if [ -f "~agnea1/backup-dir/backup-data" ]; then

        echo "ERROR: No config file for today!"
        echo "FATAL!"
        exit 1
fi

if [ -d "~agnea1/backup-dir/temp" ]; then

        echo "ERROR: No tempoary directory found!"
        echo
        echo "Attempting to create"
        cd ~agnea1
        cd backup-dir
        mkdir temp
        echo "Directory Made - temp"
fi

if [ "$1" = "" ]; then

        echo "ERROR: enter in a machine name (ie: cdwriter)"
        exit 1
fi

if [ "$2" = "" ]; then

        echo "ERROR: enter in a SMB (Lan Manager) Resource (ie: work)"
        exit 1
fi

if [ "$3" = "" ]; then

        echo "ERROR: enter in an IP address for $1 (ie:
        130.xxx.xxx.52)" exit 1
fi


#############################################################################
# Main Section
#
#############################################################################

cd ~agnea1/backup-dir/temp
rm -r ~agnea1/backup-dir/temp/*
cd ~agnea1/backup-dir/

case "$checkdate"
in
        Mon)
                echo "Backuping for Monday"
                cat backup-data | /usr/local/samba/bin/smbclient
                \\\\$1\\$2 -I$3 -N echo "Complete"

                        if [ -d "~agnea1/backup-dir/Monday" ]; then
                                echo "Directory Monday Not found ...
                                making" mkdir
                                ~agnea1/backup-dir/Monday
                        fi

                echo "Archiving ..."
                cd ~agnea1/backup-dir/temp
                tar -cf monday.tar *                echo "done ..."
                rm ~agnea1/backup-dir/Monday/monday.tar
                mv monday.tar ~agnea1/backup-dir/Monday
                ;;


        Tue)
                echo "Backuping for Tuesday"
                cat backup-data | /usr/local/samba/bin/smbclient
                \\\\$1\\$2 -I$3 -N echo "Complete"

                        if [ -d "~agnea1/backup-dir/Tuesday" ]; then
                                echo "Directory Tuesday Not found ...
                                making" mkdir
                                ~agnea1/backup-dir/Tuesday
                        fi
                echo "Archiving ..."
                cd ~agnea1/backup-dir/temp
                tar -cf tuesday.tar *
                echo "done ..."
                rm ~agnea1/backup-dir/Tuesday/tuesday.tar
                mv tuesday.tar ~agnea1/backup-dir/Tuesday
                ;;

        Wed)
                echo "Backuping for Wednesday"
                cat backup-data | /usr/local/samba/bin/smbclient
                \\\\$1\\$2 -I$3 -N echo "Complete"

                        if [ -d "~agnea1/backup-dir/Wednesday" ]; then
                                echo "Directory Wednesday Not found
                                ... making" mkdir
                                ~agnea1/backup-dir/Wednesday
                        fi
                echo "Archiving ..."
                cd ~agnea1/backup-dir/temp
                tar -cf wednesday.tar *
                echo "done ..."
             rm ~agnea1/backup-dir/Wednesday/wednesday.tar
                mv wednesday.tar ~agnea1/backup-dir/Wednesday
                ;;

        Thu)
                echo "Backuping for Thrusday"
                cat backup-data | /usr/local/samba/bin/smbclient
                \\\\$1\\$2 -I$3 -N echo "Complete"

                        if [ -d "~agnea1/backup-dir/Thursday" ]; then
                                echo "Directory Thrusday Not found ...
                                making" mkdir
                                ~agnea1/backup-dir/Thursday
                        fi
                echo "Archiving ..."
                cd ~agnea1/backup-dir/temp
                tar -cf thursday.tar *
                echo "done ..."
                rm ~agnea1/backup-dir/Thursday/thursday.tar
                mv thursday.tar ~agnea1/backup-dir/Thursday
                ;;


        Fri)
                echo "Backuping for Friday"
                cat backup-data | /usr/local/samba/bin/smbclient
                \\\\$1\\$2 -I$3 -N echo "Complete"

                        if [ -d "~agnea1/backup-dir/Friday" ]; then
                                echo "Directory Friday Not found ...
                                making" mkdir
                                ~agnea1/backup-dir/Friday
                        fi
                echo "Archiving ..."
                cd ~agnea1/backup-dir/temp
                tar -cf friday.tar *
                echo "done ..."
                rm ~agnea1/backup-dir/Friday/friday.tar
                mv friday.tar ~agnea1/backup-dir/Friday
                ;;

        *)
                echo "FATAL ERROR: Unknown variable passed for day"
                exit 1;;

esac
###########

---

Here's Dan's backup script:

---

#!/bin/bash

BACKDIR=3D/backup
WINCMD=3D/usr/bin/smbclient

function CopyWinHost(){

# tars and gzips "windows shares" to a local directory using samba's
# smbclient
# argument 1 is the remote host window's host name
# argument 2 is the share name to be backed up

   echo $1,$2,$3
   REMOTE=3D$1
   SHARE=3D$2
   DEST=3D$3

 # create a tarred gzip file using samba to copy direct from a
 # windows pc
 # 12345 is a password.  Needs some password even if not defined on
 # remote system
   $WINCMD \\\\$REMOTE\\$SHARE 12345 -Tc -|gzip > $DEST
   echo `date`": Done backing up "$REMOTE" to "$DEST
   echo
}

function CopyUnixHost(){

# tars and gzips a directory using rsh
# argument 1 is the name of the remote source host
# argument 2 is the full path to the remote source directory
# argument 3 is the name of the local tar-gzip file.  day of week
#  plus .tgz will be appended to argument 3

   REMOTE=3D$1
   SRC=3D$2
   DEST=3D$3


   if rsh $REMOTE tar -cf - $SRC |gzip > $DEST; then
      echo `date`": Done backing up "$REMOTE":"$SRC" to "$DEST
   else
     echo `date`": Error backing up "$REMOTE":"$SRC" to "$DEST
   fi

}

# $1: win=3Dbackup windows machine, unix=3Dbackup unix machine
case $1 in
   win)
      # $2=3D remote windows name, $3=3Dremote share name,
      # $4=3Dlocal destination directory
      CopyWinHost $2 $3 $4;;
   unix)
      # $2 =3D remote host, $3 =3D remote directory,
      # $4 =3D destination name
      CopyUnixHost $2 $3 $4;;
esac

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