backup version 0.592

alphatan

backup version 0.592
把backup脚本分两个文件(backup.sh跟backupFunc.sh，请使用者把下述语句分开保存)，现版本更具移植性。
首先，脚本脱离了uMntFtpDirs与01MntFtpDirs.sh的束缚，通过读取/etc/mtab，用函数实现了在备份系统时不用备份--bind的文件夹。
另外，本版本中不直接使用命令名进行操作，而使用变量来代指，一来便于用户在自己的机上使用--只需要更改LEADINGDIR(指向放置.tar.gz 文件的绝对路径)、PATH2BCKUPSH(指向backup.sh的绝对路径)跟$SUCOM后接的用户名的值就可以了。而且如果要提高脚本的安全性，可以把本脚本要用到的程序备份到一个独立目录，再把变量指向它，然后就算系统后来感染了，也还可以保持备份的安全性。
最后，本脚本还具备信号处理能力，可以防止用户不小心错按CTRL-C等发出TERM, INT信号，当然，用户如果真要结束脚本，只需要按提示应答即可。
同时，本人为本脚本程序源用GPL协议发布，用以更方便大家传播与使用。

------------------------------------backup.sh------------------------------------------------
#!/bin/sh
#
#        "backup.sh" is a script written in bash to backup the whole system
#        Copyright (C) 2003 alphatan<alphatan@263.net>  version 0.592
#        This program is free software; you can redistribute it and/or modify
#        it under the terms of the GNU General Public License as published by
#        the Free Software Foundation; either version 2 of the License, or
#        (at your option) any later version.
#        You can get it by accessing http://www.gnu.org/licenses/gpl.html
#

declare -i whereAmI=0
# declare the script wide variables and definitions.
LEADINGDIR=/backup/filebck/LinuxBck
PATH2BCKUPSH=/etc/rc.d/init.d
AWKCOM=$(which awk)
CATCOM=$(which cat)
CHOWNCOM=$(which chown)
CPCOM=$(which cp)
ECHOCOM=$(which echo)
FINDCOM=$(which find)
LNCOM=$(which ln)
MKCOM=$(which mkdir)
MOUNTCOM=$(which mount)
RMCOM=$(which rm)
SUCOM=$(which su)
TARCOM=$($ECHOCOM $(which tar) -Pzcf )
TOUCHCOM=$(which touch)
UMOUNTCOM=$(which umount)
declare -a mountedDirsFromMtab=( $(grep '/var/ftp/' /etc/mtab) )
declare -i mountedDirsAmount=${#mountedDirsFromMtab[@]}
declare -f backupSystemDirs operatingMountDirs calculateTm signalDealingFunc
source ${0%/*.sh}/backupFunc.sh
trap signalDealingFunc INT TERM QUIT

# declare the copyright of this software
$ECHOCOM -ne "\n\n"
$ECHOCOM -ne "\t \"backup.sh\" is a script written in bash to backup the whole system \n"
$ECHOCOM -ne "\t Copyright (C) 2003 alphatan<alphatan@263.net> version 0.592\n"
$ECHOCOM -ne "\t This program is free software; you can redistribute it and/or modify \n"
$ECHOCOM -ne "\t it under the terms of the GNU General Public License as published by \n"
$ECHOCOM -ne "\t the Free Software Foundation; either version 2 of the License, or \n"
$ECHOCOM -ne "\t (at your option) any later version. \n"
$ECHOCOM -ne "\t You can get it by accessing http://www.gnu.org/licenses/gpl.html \n"


$ECHOCOM -ne "\n Input the backup dir name:  "
read BACKUPDIR

# time calculating process starts
calculateTm start
let whereAmI=0

# backup system wide files
backupSystemDirs
let whereAmI=0

# Establish DETAILED and SIMPLE system list.
SYSLISTDIR=sysList
if [ ! -d $LEADINGDIR/$BACKUPDIR/$SYSLISTDIR ]; then
        $MKCOM $LEADINGDIR/$BACKUPDIR/$SYSLISTDIR
fi
operatingMountDirs umount
let whereAmI=0
$FINDCOM / -fprint "$LEADINGDIR/$BACKUPDIR/$SYSLISTDIR/$BACKUPDIR""$SYSLISTDIR""Simple.txt"
$FINDCOM / -fls "$LEADINGDIR/$BACKUPDIR/$SYSLISTDIR/$BACKUPDIR""$SYSLISTDIR""Detailed.txt"
operatingMountDirs mount
let whereAmI=0

# Backup this script.
$CPCOM $PATH2BCKUPSH/backup*.sh $LEADINGDIR/$BACKUPDIR/

# Establish sysChange.log by "su alphatan" at $BACKUPDIR;
# Then, remove the former linkage, and "link" again at /home/alphatan;
$TOUCHCOM $LEADINGDIR/$BACKUPDIR/sysChange.log
$CHOWNCOM alphatan.root $LEADINGDIR/$BACKUPDIR/sysChange.log
$SUCOM alphatan --command="$RMCOM -rf ~/sysChange.log"
$SUCOM alphatan --command="$LNCOM -s $LEADINGDIR/$BACKUPDIR/sysChange.log ~/sysChange.log"
# "empty line to end syntax hightlight of \"

# Calculate consuming time.
calculateTm end
let whereAmI=0


------------------------------------backup.sh------------------------------------------------


------------------------------------backupFunc.sh------------------------------------------------
#
#        "backupFunc.sh" is a script of functions written in bash as an associated "backup.sh"
#        Copyright (C) 2003 alphatan<alphatan@263.net>  version 0.59
#        This program is free software; you can redistribute it and/or modify
#        it under the terms of the GNU General Public License as published by
#        the Free Software Foundation; either version 2 of the License, or
#        (at your option) any later version.
#        You can get it by accessing http://www.gnu.org/licenses/gpl.html
#

# Following is the definitions of functions.
function calculateTm()
{
        let whereAmI=1
        if [ $1 = 'end' ]; then
                ENDTIMEMARK=`date +%s`
                let USEDSECONDS=$ENDTIMEMARK-$STARTTIMEMARK
                let USEDSECOND=$USEDSECONDS%60
                let USEDMINUTE=($USEDSECONDS/60)%60
                let USEDHOUR=($USEDSECONDS/3600)%60
                if [ $USEDSECONDS == 0 ]; then
                        $ECHOCOM "It doesn't need a second?? Is there something in trouble?"
                        builtin exit 1
                else
                        $ECHOCOM "It used $USEDHOURUSEDMINUTEUSEDSECOND"
                        builtin exit 0
                fi
        elif [ $1 = 'start' ]; then
                STARTTIMEMARK=`date +%s`
        else
                $ECHOCOM -e " calculateTM Usage: calculateTM [start|stop] " >&2
                exit 1
        fi
}

function operatingMountDirs()
{
        let whereAmI=1
        declare -i i=0

        if [ $1 = mount ]; then
                local OPERATIONONTHEMOUNTDIRS='$MOUNTCOM --bind ${mountedDirsFromMtab[$i]} ${mountedDirsFromMtab[$i+1]}'
        elif [ $1 = umount ]; then
                local OPERATIONONTHEMOUNTDIRS='$UMOUNTCOM ${mountedDirsFromMtab[$i+1]}'
        else
                $ECHOCOM -e " operatingMountDirs Usage: operatingMountDirs [mount|umount] " >&2
                exit 1
        fi
       
        while [ $i -lt $mountedDirsAmount ]  ; do
                eval $OPERATIONONTHEMOUNTDIRS
                let i+=6
        done
}

function backupSystemDirs()
{
        let whereAmI=1
        if [ ! -d $LEADINGDIR/$BACKUPDIR ]; then
                $MKCOM $LEADINGDIR/$BACKUPDIR
        fi
        $TARCOM $LEADINGDIR/$BACKUPDIR/bin.tar.gz /bin
        $TARCOM $LEADINGDIR/$BACKUPDIR/boot.tar.gz /boot
        $TARCOM $LEADINGDIR/$BACKUPDIR/dev.tar.gz /dev
        $TARCOM $LEADINGDIR/$BACKUPDIR/etc.tar.gz /etc
        $TARCOM $LEADINGDIR/$BACKUPDIR/home.tar.gz /home
        $TARCOM $LEADINGDIR/$BACKUPDIR/initrd.tar.gz /initrd
        $TARCOM $LEADINGDIR/$BACKUPDIR/lib.tar.gz /lib
        $TARCOM $LEADINGDIR/$BACKUPDIR/misc.tar.gz /misc
        $TARCOM $LEADINGDIR/$BACKUPDIR/opt.tar.gz /opt
        $TARCOM $LEADINGDIR/$BACKUPDIR/root.tar.gz /root
        $TARCOM $LEADINGDIR/$BACKUPDIR/sbin.tar.gz /sbin
        $TARCOM $LEADINGDIR/$BACKUPDIR/tftpboot.tar.gz /tftpboot

        operatingMountDirs umount
        $TARCOM $LEADINGDIR/$BACKUPDIR/var.tar.gz /var
        operatingMountDirs mount

        $TARCOM $LEADINGDIR/$BACKUPDIR/usr_share.tar.gz /usr/share
        $TARCOM $LEADINGDIR/$BACKUPDIR/usr.tar.gz --exclude=/usr/share  /usr
}

function signalDealingFunc()
{
        local userChoice
        local lineNumber=$LINENO
        if (( $whereAmI==0 )); then local currentOperatingFileName=$0 #/etc/rc.d/init.d/backup.sh
        else local currentOperatingFileName=${0%.sh}Func.sh #/etc/rc.d/init.d/backupFunc.sh
        fi
        $ECHOCOM "Currently running LINE $LINENO within $currentOperatingFileName "
        $CATCOM  $currentOperatingFileName |$AWKCOM "{if (NR==$lineNumber || NR==$lineNumber-1 || NR==$lineNumber+1) print NR\":\ \"\$0;}"       
        builtin read -p "Are you sure you want to exit?(1:yes, 2:no) " userChoice
        until [ -n "$($ECHOCOM $userChoice | egrep '^(1|2|y|yes|n|no)$')" ]; do
                builtin read -p "Not a legal choice, (1:yes, 2:no) " userChoice
        done
        case $userChoice in
        1 | y | yes ) builtin exit 1 ;;
        *) return ;;
        esac
}

------------------------------------backupFunc.sh------------------------------------------------

KornLee

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