系统备份脚本

NeoAnderson · 发表于 2005-1-24 15:58:08

首先非常感谢kiron提出的意见。根据这些意见，代码进行了改动，增加了-h, --help选项，输出完整的帮助文档；增加了log文档，也就是说在备份的时候会自动生成一个backup-日期-时间.log的文档来记录本次备份的信息(不是用户自己写的注释文档！)；如果备份过程中出现任何错误都会输出该错误并执行相应命令的help；如果检测到用户目录下没有配置文件存在，会提示用户创建，并要求用户对其进行更改；解决了分段备份中的几个小bug。
下面是代码：

#!/bin/bash
# This script makes the backup of the system. For more details, use
# backup.sh --help
# Written by Neo Anderson <ZeeGeek@gmail.com>
# Jan 18 2005
# the following four variables are specified by users
MTOGGLE=$1
# set DEST to the destination which you want all the backup files go.
# CAUTION, there's no default value for this variable, so you MUST
# specify it in the config file.
DEST=''
# PART_TOGGLE specifies the size of each part of the target backup
# file, 0 means don't cut, any number bigger than 0 will be treated as
# Kilobytes of each part of the file.(default is 0)
PART_TOGGLE=0
# LOG_TOGGLE means whether or not you want to have a log when you
# backup. (default is no)
LOG_TOGGLE='no'
asroot() {
# check if the user is running this script as root
if [ "$(whoami)" != 'root' ]
then
echo "Please run this script as root!"
exit
fi
}
usercheck() {
echo "DEST is $DEST"
echo "PART_TOGGLE is $PART_TOGGLE"
echo "LOG_TOGGLE is $LOG_TOGGLE"
echo -n "are they correct? (y/n)"
read -n 1 CHECK_ANS
echo
if [ $CHECK_ANS != 'y' ]
then
echo "please edit the config file"
exit
fi
}
initiate() {
# check if the destination directory exists
if [ ! -d $DEST ]
then
echo "Destination directory not exists. Please create it before backup"
exit
fi
cd /
}
config() {
echo -n "Config file not exist. Do you want me to create it for you? (y/n)"
read CONFIG_ANS
if [ $CONFIG_ANS == 'y' ]
then
echo "DEST: /path/to/put/the/backup/file" > $HOME/.backuprc
echo "SP:" >> $HOME/.backuprc
echo "freq /things/you/want/to/backup [options for tar]" >> $HOME/.backuprc
echo "The config file has been created, it's called .backuprc in your home directory. YOU MUST EDIT IT BEFORE USE!"
echo -n "Edit now? (y/n)"
read EDIT_ANS
if [ $EDIT_ANS == 'y' ]
then
$EDITOR $HOME/.backuprc
readconf
else
exit
fi
else
exit
fi
}
readconf() {
# whether or not source path part has reached
SP='false'
exec 6<> $HOME/.backuprc # redirect FD 6 to the file .backup
while read INPUT <&6 # read the config file line by line
do
if [[ "`echo $INPUT | grep SP:`" || $SP == 'true' ]]
then
# read one more time to skip "SP:"
if [ $SP == 'false' ]
then
read INPUT <&6
# ask user to check
usercheck
# record log file
echo "All options correct" >> $BACKUP_LOG
# initiating
initiate
# record log file
echo "Destination directory exists" >> $BACKUP_LOG
# toggle on
SP='true'
fi
# get the frequency
TOGGLE="`echo $INPUT | awk '{ print $1 }'`"
# get the source path and options passed to tar
SOURCE=${INPUT#$TOGGLE}
# check the toggle provided by user when running this
# script
case $MTOGGLE in
weekly)
# if the toggle specified by user
# matches the toggle for each source,
# then back it up
if [ $MTOGGLE == $TOGGLE ]
then
backup
else
continue
fi
;;
monthly)
if [ $MTOGGLE == $TOGGLE ]
then
backup
else
continue
fi
;;
all)
backup
;;
*)
usage
exit
;;
esac
else
TEMP="`echo $INPUT | awk '{ print $1 }' | sed s/.$//`"
TEMP_V="`echo $INPUT | awk '{ print $2 }'`"
case $TEMP in
DEST)
DEST=$TEMP_V
BACKUP_LOG="$DEST/backup-`date +%b%d%Y-%H%M`.log"
# record log file
echo "----- Start of log file -----" >> $BACKUP_LOG
echo "Config file exists" >> $BACKUP_LOG
echo "DEST read" >> $BACKUP_LOG
;;
PART_TOGGLE)
PART_TOGGLE=$TEMP_V
# record log file
echo "PART_TOGGLE read" >> $BACKUP_LOG
;;
LOG_TOGGLE)
LOG_TOGGLE=$TEMP_V
# record log file
echo "LOG_TOGGLE read" >> $BACKUP_LOG
;;
RM_OLD)
RM_OLD=$TEMP_V
# record log file
echo "RM_OLD read" >> $BACKUP_LOG
;;
*)
echo "unrecognized option $TEMP"
usage
exit
;;
esac
fi
done
# record log file
echo >> $BACKUP_LOG
echo >> $BACKUP_LOG
echo "all jobs done successfully" >> $BACKUP_LOG
}
backup() {
# record log file
echo >> $BACKUP_LOG
echo "----------" >> $BACKUP_LOG
echo >> $BACKUP_LOG
SOURCE_PATH="`echo $SOURCE | awk '{ print $1 }'`"
# record log file
echo "SOURCE PATH is $SOURCE_PATH" >> $BACKUP_LOG
DEST_NAME="$DEST/`basename $SOURCE_PATH`"
# record log file
echo "DEST NAME is $DEST_NAME" >> $BACKUP_LOG
DEST_TAR="$DEST_NAME-`date +%b%d%Y-%H%M`.tar.gz"
# record log file
echo "DEST TAR is $DEST_TAR" >> $BACKUP_LOG
SIZE=$PART_TOGGLE
if [ $PART_TOGGLE == 0 ]
then
tar czvfp $DEST_TAR $SOURCE >> $BACKUP_LOG 2>&1 # backup
if [ $? != 0 ]
then
echo "Error making backup. Errors are stored in $BACKUP_LOG"
tar --help
exit
fi
md5sum $DEST_TAR > $DEST_NAME.md5 2>>$BACKUP_LOG # make md5sum
if [ $? != 0 ]
then
echo "Error making md5sum of backup. Errors are stored in $BACKUP_LOG"
md5sum --help
exit
fi
else
COUNTS=$[$PART_TOGGLE * 2]
# record log file
echo "COUNTS is $COUNTS" >> $BACKUP_LOG
for ((a=1;;a++))
do
# record log file
echo >> $BACKUP_LOG
if [ "$SIZE" -ge "$PART_TOGGLE" ]
then
TEMP_DEST_TAR="$DEST_TAR"."$a"
# record log file
echo "TEMP DEST TAR is $TEMP_DEST_TAR" >> $BACKUP_LOG
tar czvfp - $SOURCE | dd of=$TEMP_DEST_TAR \
skip=$[$COUNTS * $[$a - 1]] \
count=$COUNTS >> $BACKUP_LOG 2>&1
if [ $? != 0 ]
then
echo "Error making backup. Errors are stored in $BACKUP_LOG"
dd --help
exit
fi
md5sum $TEMP_DEST_TAR >> $DEST_NAME.md5 2>>$BACKUP_LOG
if [ $? != 0 ]
then
echo "Error making md5sum of backup. Errors are stored in $BACKUP_LOG"
md5sum --help
exit
fi
# size of last backuped part of file
SIZE="`ls -lk $TEMP_DEST_TAR | awk '{ print $5}'`"
# record log file
echo "SIZE is $SIZE" >> $BACKUP_LOG
else
break
fi
done
fi
# record log file
echo "backup succeeded" >> $BACKUP_LOG
ls -lRa $SOURCE_PATH > $DEST_NAME.list # keep a list of this source
# record log file
echo "file list made" >> $BACKUP_LOG
# make a log file
if [[ $LOG_TOGGLE == 'yes' || $LOG_TOGGLE == 'Yes' || \
$LOG_TOGGLE == 'YES' || $LOG_TOGGLE == 'Y' || \
$LOG_TOGGLE == 'y' ]]
then
echo "# Log file for $DEST_NAME" > $DEST_NAME
echo "# Written by `whoami`" >> $DEST_NAME
echo "# `date +"%b %d %Y"`" >> $DEST_NAME
$EDITOR $DEST_NAME.log
# record log file
echo "log file made" >> $BACKUP_LOG
fi
}
usage() {
echo 'Usage: backup.sh [OPTION]'
echo 'Options:'
echo ' all backup all the entries specified in the config file'
echo ' weekly backup entries start with 'weekly' in the config file'
echo ' monthly backup entries start with 'monthly' in the config file'
echo ' -h, --help display the help and exit'
echo
echo 'Config file:'
echo 'config file must be present in your home directory with
the name of .backuprc. There are four options you can specify in
it. They are DEST, PART_TOGGLE, LOG_TOGGLE and SP. The meaning
for them are "destination directory you want all backup files
in", "the size of each part of the target backup file, 0 means
do not cut, any number bigger than 0 will be treated as
Kilobytes of each part of the file.(default is 0)", "whether or
not you want to have a log when you backup. (default is no)",
"the sign of telling the script the following lines are pathes
you want to be backuped", respectively. Each option name must be
followed by a colon and a space, then the value. The options
DEST and SP have to exist in order to have the script work. The DEST
option must comes at the beginning and SP must be put at the end of the
config file.'
echo
echo 'Example of .backuprc:'
echo ' DEST: /mnt/usbc'
echo ' PART_TOGGLE: 10240'
echo ' LOG_TOGGLE: yes'
echo ' SP:'
echo ' weekly /root'
echo ' monthly /etc'
}
# Start of the script
# check if the script is run as root
asroot
# check the existance of the config file
if [ ! -f $HOME/.backuprc ]
then
config
fi
# help
if [[ $1 == '--help' || $1 == '-h' ]]
then
usage
elif [[ $1 == 'all' || $1 == 'weekly' || $1 == 'monthly' ]]
then
readconf
else
usage
fi

复制代码

有个问题没解决，想请大家指教：当进行分段备份时，为何重定向不起作用，输出仍然会跑到屏幕上，而不是我指定的log文件里。如果不是分段备份就没这个问题。

NeoAnderson · 发表于 2005-1-26 01:11:27

改了备份跟目录时无法正确创建文件名的问题，就是加了个判断。

#!/bin/bash
# This script makes the backup of the system. For more details, use
# backup.sh --help
# Written by Neo Anderson <ZeeGeek@gmail.com>
# Jan 18 2005
# the following four variables are specified by users
MTOGGLE=$1
# set DEST to the destination which you want all the backup files go.
# CAUTION, there's no default value for this variable, so you MUST
# specify it in the config file.
DEST=''
# PART_TOGGLE specifies the size of each part of the target backup
# file, 0 means don't cut, any number bigger than 0 will be treated as
# Kilobytes of each part of the file.(default is 0)
PART_TOGGLE=0
# LOG_TOGGLE means whether or not you want to have a log when you
# backup. (default is no)
LOG_TOGGLE='no'
asroot() {
# check if the user is running this script as root
if [ "$(whoami)" != 'root' ]
then
echo "Please run this script as root!"
exit
fi
}
usercheck() {
echo "DEST is $DEST"
echo "PART_TOGGLE is $PART_TOGGLE"
echo "LOG_TOGGLE is $LOG_TOGGLE"
echo -n "are they correct? (y/n)"
read -n 1 CHECK_ANS
echo
if [ $CHECK_ANS != 'y' ]
then
echo "please edit the config file"
exit
fi
}
initiate() {
# check if the destination directory exists
if [ ! -d $DEST ]
then
echo "Destination directory not exists. Please create it before backup"
exit
fi
cd /
}
config() {
echo -n "Config file not exist. Do you want me to create it for you? (y/n)"
read CONFIG_ANS
if [ $CONFIG_ANS == 'y' ]
then
echo "DEST: /path/to/put/the/backup/file" > $HOME/.backuprc
echo "SP:" >> $HOME/.backuprc
echo "freq /things/you/want/to/backup [options for tar]" >> $HOME/.backuprc
echo "The config file has been created, it's called .backuprc in your home directory. YOU MUST EDIT IT BEFORE USE!"
echo -n "Edit now? (y/n)"
read EDIT_ANS
if [ $EDIT_ANS == 'y' ]
then
$EDITOR $HOME/.backuprc
readconf
else
exit
fi
else
exit
fi
}
readconf() {
# whether or not source path part has reached
SP='false'
exec 6<> $HOME/.backuprc # redirect FD 6 to the file .backup
while read INPUT <&6 # read the config file line by line
do
if [[ "`echo $INPUT | grep SP:`" || $SP == 'true' ]]
then
# read one more time to skip "SP:"
if [ $SP == 'false' ]
then
read INPUT <&6
# ask user to check
usercheck
# record log file
echo "All options correct" >> $BACKUP_LOG
# initiating
initiate
# record log file
echo "Destination directory exists" >> $BACKUP_LOG
# toggle on
SP='true'
fi
# get the frequency
TOGGLE="`echo $INPUT | awk '{ print $1 }'`"
# get the source path and options passed to tar
SOURCE=${INPUT#$TOGGLE}
# check the toggle provided by user when running this
# script
case $MTOGGLE in
weekly)
# if the toggle specified by user
# matches the toggle for each source,
# then back it up
if [ $MTOGGLE == $TOGGLE ]
then
backup
else
continue
fi
;;
monthly)
if [ $MTOGGLE == $TOGGLE ]
then
backup
else
continue
fi
;;
all)
backup
;;
*)
usage
exit
;;
esac
else
TEMP="`echo $INPUT | awk '{ print $1 }' | sed s/.$//`"
TEMP_V="`echo $INPUT | awk '{ print $2 }'`"
case $TEMP in
DEST)
DEST=$TEMP_V
BACKUP_LOG="$DEST/backup-`date +%b%d%Y-%H%M`.log"
# record log file
echo "----- Start of log file -----" >> $BACKUP_LOG
echo "Config file exists" >> $BACKUP_LOG
echo "DEST read" >> $BACKUP_LOG
;;
PART_TOGGLE)
PART_TOGGLE=$TEMP_V
# record log file
echo "PART_TOGGLE read" >> $BACKUP_LOG
;;
LOG_TOGGLE)
LOG_TOGGLE=$TEMP_V
# record log file
echo "LOG_TOGGLE read" >> $BACKUP_LOG
;;
RM_OLD)
RM_OLD=$TEMP_V
# record log file
echo "RM_OLD read" >> $BACKUP_LOG
;;
*)
echo "unrecognized option $TEMP"
usage
exit
;;
esac
fi
done
# record log file
echo >> $BACKUP_LOG
echo >> $BACKUP_LOG
echo "all jobs done successfully" >> $BACKUP_LOG
}
backup() {
# record log file
echo >> $BACKUP_LOG
echo "----------" >> $BACKUP_LOG
echo >> $BACKUP_LOG
SOURCE_PATH="`echo $SOURCE | awk '{ print $1 }'`"
# record log file
echo "SOURCE PATH is $SOURCE_PATH" >> $BACKUP_LOG
if [ $(basename $SOURCE_PATH) == '/' ]
then
DEST_NAME="$DEST/root"
else
DEST_NAME="$DEST/`basename $SOURCE_PATH`"
fi
# record log file
echo "DEST NAME is $DEST_NAME" >> $BACKUP_LOG
DEST_TAR="$DEST_NAME-`date +%b%d%Y-%H%M`.tar.gz"
# record log file
echo "DEST TAR is $DEST_TAR" >> $BACKUP_LOG
SIZE=$PART_TOGGLE
if [ $PART_TOGGLE == 0 ]
then
tar czvfp $DEST_TAR $SOURCE >> $BACKUP_LOG 2>&1 # backup
if [ $? != 0 ]
then
echo "Error making backup. Errors are stored in $BACKUP_LOG"
tar --help
exit
fi
md5sum $DEST_TAR > $DEST_NAME.md5 2>>$BACKUP_LOG # make md5sum
if [ $? != 0 ]
then
echo "Error making md5sum of backup. Errors are stored in $BACKUP_LOG"
md5sum --help
exit
fi
else
COUNTS=$[$PART_TOGGLE * 2]
# record log file
echo "COUNTS is $COUNTS" >> $BACKUP_LOG
for ((a=1;;a++))
do
# record log file
echo >> $BACKUP_LOG
if [ "$SIZE" -ge "$PART_TOGGLE" ]
then
TEMP_DEST_TAR="$DEST_TAR"."$a"
# record log file
echo "TEMP DEST TAR is $TEMP_DEST_TAR" >> $BACKUP_LOG
tar czvfp - $SOURCE | dd of=$TEMP_DEST_TAR \
skip=$[$COUNTS * $[$a - 1]] \
count=$COUNTS >> $BACKUP_LOG 2>&1
if [ $? != 0 ]
then
echo "Error making backup. Errors are stored in $BACKUP_LOG"
dd --help
exit
fi
md5sum $TEMP_DEST_TAR >> $DEST_NAME.md5 2>>$BACKUP_LOG
if [ $? != 0 ]
then
echo "Error making md5sum of backup. Errors are stored in $BACKUP_LOG"
md5sum --help
exit
fi
# size of last backuped part of file
SIZE="`ls -lk $TEMP_DEST_TAR | awk '{ print $5}'`"
# record log file
echo "SIZE is $SIZE" >> $BACKUP_LOG
else
break
fi
done
fi
# record log file
echo "backup succeeded" >> $BACKUP_LOG
ls -lRa $SOURCE_PATH > $DEST_NAME.list # keep a list of this source
# record log file
echo "file list made" >> $BACKUP_LOG
# make a log file
if [[ $LOG_TOGGLE == 'yes' || $LOG_TOGGLE == 'Yes' || \
$LOG_TOGGLE == 'YES' || $LOG_TOGGLE == 'Y' || \
$LOG_TOGGLE == 'y' ]]
then
echo "# Log file for $DEST_NAME" > $DEST_NAME
echo "# Written by `whoami`" >> $DEST_NAME
echo "# `date +"%b %d %Y"`" >> $DEST_NAME
$EDITOR $DEST_NAME.log
# record log file
echo "log file made" >> $BACKUP_LOG
fi
}
usage() {
echo 'Usage: backup.sh [OPTION]'
echo 'Options:'
echo ' all backup all the entries specified in the config file'
echo ' weekly backup entries start with 'weekly' in the config file'
echo ' monthly backup entries start with 'monthly' in the config file'
echo ' -h, --help display the help and exit'
echo
echo 'Config file:'
echo 'config file must be present in your home directory with
the name of .backuprc. There are four options you can specify in
it. They are DEST, PART_TOGGLE, LOG_TOGGLE and SP. The meaning
for them are "destination directory you want all backup files
in", "the size of each part of the target backup file, 0 means
do not cut, any number bigger than 0 will be treated as
Kilobytes of each part of the file.(default is 0)", "whether or
not you want to have a log when you backup. (default is no)",
"the sign of telling the script the following lines are pathes
you want to be backuped", respectively. Each option name must be
followed by a colon and a space, then the value. The options
DEST and SP have to exist in order to have the script work. The DEST
option must comes at the beginning and SP must be put at the end of the
config file.'
echo
echo 'Example of .backuprc:'
echo ' DEST: /mnt/usbc'
echo ' PART_TOGGLE: 10240'
echo ' LOG_TOGGLE: yes'
echo ' SP:'
echo ' weekly /root'
echo ' monthly /etc'
}
# Start of the script
# check if the script is run as root
asroot
# check the existance of the config file
if [ ! -f $HOME/.backuprc ]
then
config
fi
# help
if [[ $1 == '--help' || $1 == '-h' ]]
then
usage
elif [[ $1 == 'all' || $1 == 'weekly' || $1 == 'monthly' ]]
then
readconf
else
usage
fi

复制代码

NeoAnderson · 发表于 2005-1-26 13:42:04

由于一时疏忽，那个新增的判断语句漏了点东西，现在重贴一遍。

#!/bin/bash
# This script makes the backup of the system. For more details, use
# backup.sh --help
# Written by Neo Anderson <ZeeGeek@gmail.com>
# Jan 18 2005
# the following four variables are specified by users
MTOGGLE=$1
# set DEST to the destination which you want all the backup files go.
# CAUTION, there's no default value for this variable, so you MUST
# specify it in the config file.
DEST=''
# PART_TOGGLE specifies the size of each part of the target backup
# file, 0 means don't cut, any number bigger than 0 will be treated as
# Kilobytes of each part of the file.(default is 0)
PART_TOGGLE=0
# LOG_TOGGLE means whether or not you want to have a log when you
# backup. (default is no)
LOG_TOGGLE='no'
asroot() {
# check if the user is running this script as root
if [ "$(whoami)" != 'root' ]
then
echo "Please run this script as root!"
exit
fi
}
usercheck() {
echo "DEST is $DEST"
echo "PART_TOGGLE is $PART_TOGGLE"
echo "LOG_TOGGLE is $LOG_TOGGLE"
echo -n "are they correct? (y/n)"
read -n 1 CHECK_ANS
echo
if [ $CHECK_ANS != 'y' ]
then
echo "please edit the config file"
exit
fi
}
initiate() {
# check if the destination directory exists
if [ ! -d $DEST ]
then
echo "Destination directory not exists. Please create it before backup"
exit
fi
cd /
}
config() {
echo -n "Config file not exist. Do you want me to create it for you? (y/n)"
read CONFIG_ANS
if [ $CONFIG_ANS == 'y' ]
then
echo "DEST: /path/to/put/the/backup/file" > $HOME/.backuprc
echo "SP:" >> $HOME/.backuprc
echo "freq /things/you/want/to/backup [options for tar]" >> $HOME/.backuprc
echo "The config file has been created, it's called .backuprc in your home directory. YOU MUST EDIT IT BEFORE USE!"
echo -n "Edit now? (y/n)"
read EDIT_ANS
if [ $EDIT_ANS == 'y' ]
then
$EDITOR $HOME/.backuprc
readconf
else
exit
fi
else
exit
fi
}
readconf() {
# whether or not source path part has reached
SP='false'
exec 6<> $HOME/.backuprc # redirect FD 6 to the file .backup
while read INPUT <&6 # read the config file line by line
do
if [[ "`echo $INPUT | grep SP:`" || $SP == 'true' ]]
then
# read one more time to skip "SP:"
if [ $SP == 'false' ]
then
read INPUT <&6
# ask user to check
usercheck
# record log file
echo "All options correct" >> $BACKUP_LOG
# initiating
initiate
# record log file
echo "Destination directory exists" >> $BACKUP_LOG
# toggle on
SP='true'
fi
# get the frequency
TOGGLE="`echo $INPUT | awk '{ print $1 }'`"
# get the source path and options passed to tar
SOURCE=${INPUT#$TOGGLE}
# check the toggle provided by user when running this
# script
case $MTOGGLE in
weekly)
# if the toggle specified by user
# matches the toggle for each source,
# then back it up
if [ $MTOGGLE == $TOGGLE ]
then
backup
else
continue
fi
;;
monthly)
if [ $MTOGGLE == $TOGGLE ]
then
backup
else
continue
fi
;;
all)
backup
;;
*)
usage
exit
;;
esac
else
TEMP="`echo $INPUT | awk '{ print $1 }' | sed s/.$//`"
TEMP_V="`echo $INPUT | awk '{ print $2 }'`"
case $TEMP in
DEST)
DEST=$TEMP_V
BACKUP_LOG="$DEST/backup-`date +%b%d%Y-%H%M`.log"
# record log file
echo "----- Start of log file -----" >> $BACKUP_LOG
echo "Config file exists" >> $BACKUP_LOG
echo "DEST read" >> $BACKUP_LOG
;;
PART_TOGGLE)
PART_TOGGLE=$TEMP_V
# record log file
echo "PART_TOGGLE read" >> $BACKUP_LOG
;;
LOG_TOGGLE)
LOG_TOGGLE=$TEMP_V
# record log file
echo "LOG_TOGGLE read" >> $BACKUP_LOG
;;
RM_OLD)
RM_OLD=$TEMP_V
# record log file
echo "RM_OLD read" >> $BACKUP_LOG
;;
*)
echo "unrecognized option $TEMP"
usage
exit
;;
esac
fi
done
# record log file
echo >> $BACKUP_LOG
echo >> $BACKUP_LOG
echo "all jobs done successfully" >> $BACKUP_LOG
}
backup() {
# record log file
echo >> $BACKUP_LOG
echo "----------" >> $BACKUP_LOG
echo >> $BACKUP_LOG
SOURCE_PATH="`echo $SOURCE | awk '{ print $1 }'`"
# record log file
echo "SOURCE PATH is $SOURCE_PATH" >> $BACKUP_LOG
if [ $(basename $SOURCE_PATH) == '/' ]
then
DEST_NAME="$DEST/rootpartition"
else
DEST_NAME="$DEST/`basename $SOURCE_PATH`"
fi
# record log file
echo "DEST NAME is $DEST_NAME" >> $BACKUP_LOG
DEST_TAR="$DEST_NAME-`date +%b%d%Y-%H%M`.tar.gz"
# record log file
echo "DEST TAR is $DEST_TAR" >> $BACKUP_LOG
SIZE=$PART_TOGGLE
if [ $PART_TOGGLE == 0 ]
then
tar czvfp $DEST_TAR $SOURCE >> $BACKUP_LOG 2>&1 # backup
if [ $? != 0 ]
then
echo "Error making backup. Errors are stored in $BACKUP_LOG"
tar --help
exit
fi
md5sum $DEST_TAR > $DEST_NAME.md5 2>>$BACKUP_LOG # make md5sum
if [ $? != 0 ]
then
echo "Error making md5sum of backup. Errors are stored in $BACKUP_LOG"
md5sum --help
exit
fi
else
COUNTS=$[$PART_TOGGLE * 2]
# record log file
echo "COUNTS is $COUNTS" >> $BACKUP_LOG
for ((a=1;;a++))
do
# record log file
echo >> $BACKUP_LOG
if [ "$SIZE" -ge "$PART_TOGGLE" ]
then
TEMP_DEST_TAR="$DEST_TAR"."$a"
# record log file
echo "TEMP DEST TAR is $TEMP_DEST_TAR" >> $BACKUP_LOG
tar czvfp - $SOURCE | dd of=$TEMP_DEST_TAR \
skip=$[$COUNTS * $[$a - 1]] \
count=$COUNTS >> $BACKUP_LOG 2>&1
if [ $? != 0 ]
then
echo "Error making backup. Errors are stored in $BACKUP_LOG"
dd --help
exit
fi
md5sum $TEMP_DEST_TAR >> $DEST_NAME.md5 2>>$BACKUP_LOG
if [ $? != 0 ]
then
echo "Error making md5sum of backup. Errors are stored in $BACKUP_LOG"
md5sum --help
exit
fi
# size of last backuped part of file
SIZE="`ls -lk $TEMP_DEST_TAR | awk '{ print $5}'`"
# record log file
echo "SIZE is $SIZE" >> $BACKUP_LOG
else
break
fi
done
fi
# record log file
echo "backup succeeded" >> $BACKUP_LOG
ls -lRa $SOURCE_PATH > $DEST_NAME.list # keep a list of this source
# record log file
echo "file list made" >> $BACKUP_LOG
# make a log file
if [[ $LOG_TOGGLE == 'yes' || $LOG_TOGGLE == 'Yes' || \
$LOG_TOGGLE == 'YES' || $LOG_TOGGLE == 'Y' || \
$LOG_TOGGLE == 'y' ]]
then
echo "# Log file for $DEST_NAME" > $DEST_NAME
echo "# Written by `whoami`" >> $DEST_NAME
echo "# `date +"%b %d %Y"`" >> $DEST_NAME
$EDITOR $DEST_NAME.log
# record log file
echo "log file made" >> $BACKUP_LOG
fi
}
usage() {
echo 'Usage: backup.sh [OPTION]'
echo 'Options:'
echo ' all backup all the entries specified in the config file'
echo ' weekly backup entries start with 'weekly' in the config file'
echo ' monthly backup entries start with 'monthly' in the config file'
echo ' -h, --help display the help and exit'
echo
echo 'Config file:'
echo 'config file must be present in your home directory with
the name of .backuprc. There are four options you can specify in
it. They are DEST, PART_TOGGLE, LOG_TOGGLE and SP. The meaning
for them are "destination directory you want all backup files
in", "the size of each part of the target backup file, 0 means
do not cut, any number bigger than 0 will be treated as
Kilobytes of each part of the file.(default is 0)", "whether or
not you want to have a log when you backup. (default is no)",
"the sign of telling the script the following lines are pathes
you want to be backuped", respectively. Each option name must be
followed by a colon and a space, then the value. The options
DEST and SP have to exist in order to have the script work. The DEST
option must comes at the beginning and SP must be put at the end of the
config file.'
echo
echo 'Example of .backuprc:'
echo ' DEST: /mnt/usbc'
echo ' PART_TOGGLE: 10240'
echo ' LOG_TOGGLE: yes'
echo ' SP:'
echo ' weekly /root'
echo ' monthly /etc'
}
# Start of the script
# check if the script is run as root
asroot
# check the existance of the config file
if [ ! -f $HOME/.backuprc ]
then
config
fi
# help
if [[ $1 == '--help' || $1 == '-h' ]]
then
usage
elif [[ $1 == 'all' || $1 == 'weekly' || $1 == 'monthly' ]]
then
readconf
else
usage
fi

复制代码

ServerOnly · 发表于 2005-1-26 16:34:39

恕我直言，我很难理解为什么要这么复杂
执行频率是cron的职责
这是我自己用的：
[php]
#!/bin/sh
DIR_BAK=/backup
today=`date '+%Y-%m-%d'`

cd /

### keep 3 newest files
rm -f $(ls -t1 /backup/full* | sed -e 1,3d)
rm -f $(ls -t1 /backup/sql* | sed -e 1,3d)

### backup files
tar jclfp $DIR_BAK/full-system-$today.bz2 /
### backup sql
/usr/local/mysql/bin/mysqldump -u auser -ppass db > $DIR_BAK/sql-$today.sql

[/php]

crontab -l
[php]
1 1 * * * /backup/script/rc.backup
[/php]

ServerOnly · 发表于 2005-1-26 16:51:09

还有如果一定要有个config文件的话，source或 . 就好了
例：
backup.conf:
[php]
SRC=。。。
DST=。。。
。。。
[/PHP]
[PHP]
source backup.conf
[/php]

root user?
[php]
test $UID && echo "

lease run this script as root!" && exit
[/php]

NeoAnderson · 发表于 2005-1-26 17:55:18

呵呵，谢谢ServerOnly。
因为我刚开始写脚本，觉得好玩就弄了这个东东，纯属练习吧，你的方法很好！

lyl696 · 发表于 2006-5-30 10:52:53

这个脚本在自动执行的时候有问题呀，配置文件应该放在什么地方？

NeoAnderson · 发表于 2006-5-30 17:12:22

放在自己的home目录下就行了

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