在爱立信实习Linux管理员也有一个月了。最近老大让我修改一个rsync自动备份的脚本。提出两个需求：第一，把不需要的文件过滤掉。第二，report的格式要好看一点。改好的脚本如下，分享一下：
#!/bin/bash
set -x
#Get hostname
HOSTNAME=`hostname`
#Check autofs availablity
ls /net/150.236.72.6/vol/vol_ipos_etos17
if [ $? = 0 ] ; then
echo AUTOFS GOOD on "$HOSTNAME" > /tmp/fasdkl921jkl.`date +%Y%m%d`
else
echo AUTOFS NOT Working on "$HOSTNAME" > /tmp/fasdkl921jkl.`date +%Y%m%d`
fi
#Create log file
LOG=/net/150.236.72.6/vol/vol_ipos_etos17/scripts/LOG/"$HOSTNAME"_RSYNC`date +%Y%m%d%H%M`.log
if [ ! -f $LOG ] ; then
touch $LOG
echo $LOG
fi
GENERAL_LOG=/net/150.236.72.6/vol/vol_ipos_etos17/scripts/LOG/general.log
if [ ! -f $GENERAL_LOG ] ; then
touch $GENERAL_LOG
echo $GENERAL_LOG
fi
#if `hostname`
DATA=`date +%Y%m%d`
time rsync -avzpo --delete --exclude "sjenkins" --exclude "tof-projectDir*" --exclude "ersoam-projectDir*" --exclude "build-rp-wr*" /local/workspace/* /net/150.236.72.6/vol/vol_ipos_etos17/$HOSTNAME/ >> $LOG
if [ $? = 0 ] ; then
echo Backup of "$HOSTNAME" on "$DATA" success at_`date +%Y%m%d%H%M` start at__"$DATA" >> $GENERAL_LOG
else
echo Backup of "$HOSTNAME" on "$DATA" fail at_`date +%Y%m%d%H%M`start at__"$DATA" >> $GENERAL_LOG
fi
#Mail function
COUNT_BACKUP=`more $GENERAL_LOG |grep $DATA |wc -l`
if [ $COUNT_BACKUP -eq 9 ]
then
TODAY=`date +%Y-%m-%d`
MAIL_LOG=`pwd`/$TODAY.html
MAIL_FROM=ge.jiang@ericsson.com
MAIL_TO=ge.jiang@ericsson.com
cd /net/150.236.72.6/vol/vol_ipos_etos17/
used=`df -h .|grep %|grep -v Filesystem|awk '{print $4}'`
if [ -f $MAIL_LOG ];then
rm $MAIL_LOG
touch $MAIL_LOG
fi
echo "From: ${MAIL_FROM}">>${MAIL_LOG}
echo "To: ${MAIL_TO}">>${MAIL_LOG}
echo "Content-type: text/html;charset=UTF-8 ">>${MAIL_LOG}
echo "Subject:server backup report on ${TODAY} ">>${MAIL_LOG}
echo "">>${MAIL_LOG}
echo "<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.0 Transitional//EN' 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd'>
Backup has been finished,and $used diskspace has been used.
<br>
<br />+++++++++++++++++++++ Backup Results on $TODAY +++++++++++++++++++++<br />">>${MAIL_LOG}
echo "<table width=\'90%\' border=\'1\'>">>${MAIL_LOG}
declare -a s
declare -a t
declare -a f
declare -i l
l=`more $GENERAL_LOG |grep $DATA|wc -l`
s=`more $GENERAL_LOG |grep $DATA|awk '{print $3}'`
t=`more $GENERAL_LOG |grep $DATA|awk '{print $7}'|awk -F "_" '{print $2}'|cut -c 7-`
f=`more $GENERAL_LOG |grep $DATA|awk '{print $6}'`
echo " <tr bgcolor=\'#EF9024\'>
<td>Server name</td>">>${MAIL_LOG}
for i in $s
do
echo "<td>$i</td>">>${MAIL_LOG}
done
echo "</tr>">>${MAIL_LOG}
echo " <tr bgcolor=\'#EF9024\'>
<td>Finish time</td>">>${MAIL_LOG}
for i in $t
do
echo "<td>$i</td>">>${MAIL_LOG}
done
echo "</tr>">>${MAIL_LOG}
echo " <tr bgcolor=\'#EF9024\'>
<td>Finish status</td>">>${MAIL_LOG}
for i in $f
do
echo "<td>$i</td>">>${MAIL_LOG}
done
echo "</tr>">>${MAIL_LOG}
cat ${MAIL_LOG} | sendmail -t
else
echo Backup partially finished.
fi
第一个需求，通过修改这条语句实现：
time rsync -avzpo --delete --exclude "sjenkins" --exclude "tof-projectDir*" --exclude "ersoam-projectDir*" --exclude "build-rp-wr*" /local/workspace/* /net/150.236.72.6/vol/vol_ipos_etos17/$HOSTNAME/ >> $LOG
--exclude 过滤掉不需要备份的文件，这里采用的是通配符的方法。有点偷懒。如果要过滤掉的文件较多的话，可以放到一个文件中，命令改成 --exclude-from=file-dir，更加详细的参考这边文章。
http://blog.csdn.net/leo_farari/article/details/7699339
第二个需求，我采用sendmail发送html邮件实现。主要是对general.log文件进行分析，把分析结果写进html，然后发送给老大。
让我更加熟悉了awk和cut等的使用。
sendmail功能通过语句
cat ${MAIL_LOG} | sendmail -t 实现。但是脚本要注意添加邮件头如下：
echo "From: ${MAIL_SENDER}">>${MAIL_LOG}
echo "To: ${MAIL_TO}">>${MAIL_LOG}
echo "Content-type: text/html;charset=UTF-8 ">>${MAIL_LOG}
echo "Subject:server backup report on ${TODAY} ">>${MAIL_LOG}
至此，脚本实现了全部需求。
