目录
- 1. 编写脚本技巧
- 2. 脚本：color
- 3. 脚本：for循环嵌套
- 4. 脚本：检测网址联通性
- 5. 脚本：密钥分发
- 6. 生产脚本：TCP连接数监控-统计TCP11种状态连接数
- 7. 生产脚本：日志监控-检查日志刷新时间
- 8. 生产脚本-mq队列监控
- 9. 脚本：处理ftp文件
- 10. 脚本：数组案例
- 11. while read line判断两个文件夹相同的文件并打包
1. 编写脚本技巧
#!/bin/bash
#date: yyyy-mm-dd
#author: shaochong
#启用环境变量
source /etc/profile
export PATH="/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin:/apps/bin/"
#set -xe # x:显示执行脚本详情 e:状态码非0退出脚本
#脚本中使用到未声明变量时退出脚本
#set -o nounset 或 set-u
#readonly声明静态变量，即定义后无法修改
#readonly Ftp_dir=/data/ftp_dir
#cd `dirname $0`
2. 脚本：color
#!/bin/bash
Red='\E[1;31m'
Green='\E[1;32m'
Yellow='\E[1;33m'
Blue='\E[1;34m'
Pink='\E[1;35m'
Res='\E[0m'
usage()
{
echo "USAGE:$0 {red|green|yellow|blue|pink}" contents && exit 1
}
color()
{
case $1 in
"red")
echo -e "${Red}$2 ${Res}";;
"green")
echo -e "${Green}$2 ${Res}";;
"yellow")
echo -e "${Yellow}$2 ${Res}";;
"blue")
echo -e "${Blue}$2 ${Res}";;
"pink")
echo -e "${Pink}$2 ${Res}";;
*)
usage
;;
esac
}
main()
{
if [ $# -ne 2 ];then
usage
fi
color $1 $2
}
main $*
3. 脚本：for循环嵌套
# mkdir -p /data/{2018..2020}/{1..12}/{1..31}
'''
#!/bin/bash
#date:2020/08/11
#author:shao
#for循环嵌套统计每个年份目录下的每个月份目录下的每天的目录文件数量
File=/tmp/shao.txt
[ ! -s $File ] || > $File
PaTh=/data
for Year in {2018..2020};do
for Month in `ls $PaTh/$Year`;do
cd $PaTh/$Year/$Month
for Day in `ls`;do
echo "[ $Year-$Month-$Day ]" >> $File
ls $Day | wc -l >> $File
done
done
done
'''
4. 脚本：检测网址联通性
#!/bin/bash
#检测网址连通性
[ -f /etc/init.d/functions ] && . /etc/init.d/functions
array=(
http://www.baidu.com
http://www.taobao.com
http://www.google.com
http://www.51cto.com
http://10.0.0.1
)
wget_ip() {
wget -T 5 -t 1 --spider --no-check-certificate $1 &> /dev/null
return $?
}
main() {
for i in ${array[*]}
do
wget_ip $i
if [ $? -eq 0 ];then
action "curl $i" /bin/true
else
action "curl $i" /bin/false
fi
done
}
main
5. 脚本：密钥分发
#!/bin/bash
#批量分发密钥
#by: Shaochong
#ssh-keygen -t rsa -f ~/.ssh/id_rsa -P ""
Port=2200
User=root
Passwd=abc123
for ip in 192.168.1.{10..20};do
ping -c2 $ip &> /dev/null
if [ $? -ne 0 ];then
echo "$ip is down"
continue
else
echo "$ip is up"
sshpass -p $Passwd ssh-copy-id -i -p $Port "-o StrictHostKeyChecking=no" $User@$ip &> /dev/null
if [ $? -eq 0 ];then
echo "$ip 分发公钥secceed"
else
echo "$ip 分发公钥failed"
fi
fi
done
6. 生产脚本：TCP连接数监控-统计TCP11种状态连接数
#!/bin/bash
#date: 20191212
#author: shaochong
usage()
{
echo "Usage $0 {key}" && exit 1
}
tcp_connect()
{
SUM=$(ss -ant | awk 'NR>1 {++s[$1]} END {for(i in s) print i,s[i]}' | grep -i $1 2> /dev/null | awk '{print $2}')
rpm -qa | grep iproute &> /dev/null
[[ $? -eq 0 ]] || exit 2
if [ ! -z $SUM ]
then
[ $# -eq 1 ] && echo $SUM || usage
else
[ $# -eq 1 ] && echo 0 || usage
fi
}
tcp_connect $*
7. 生产脚本：日志监控-检查日志刷新时间
#!/bin/bash
#Servertime
Year=`date +%Y`
Month=`date +%m`
Day=`date +%d`
#Logtime
Logtime_Year=$(stat $1 | awk -F"(:|-| )" '/Change:/{print$3}')
Logtime_Month=$(stat $1 | awk -F"(:|-| )" '/Change:/{print$4}')
Logtime_Day=$(stat $1 | awk -F"(:|-| )" '/Change:/{print$5}')
#Operation
Month_Value=$(echo $Month $Logtime_Month | awk '{print $1-$2}')
Day_Value=$(echo $Day $Logtime_Day | awk '{print $1-$2}')
#判断年份是否相同
if [ $Year -eq $Logtime_Year ]
then :
else
echo 1
exit 1
fi
#判断月份是否相差一个月之内
if [ $Month_Value -le 1 ]
then :
else
echo 2
exit 2
fi
#判断日期是否相差三天之内
if [ $Day_Value -le 2 -a $Day_Value -ge 0 -a $Month -eq $Logtime_Month ]
then echo 0
elif [ $Day_Value -le -27 -a $Day_Value -ge -30 ]
then echo 0
else
echo 3
fi
8. 生产脚本-mq队列监控
#!/bin/bash
#set crontab (rabbitmqctl list_quenens > /tmp/rabbitmq_queues.txt)
File=/tmp/rabbitmq_queues.txt
Queue_Num=$(awk 'NR>3' $File | grep $1 2>/dev/null | awk '{print $2}')
Queue=$(awk 'NR>3' $File | grep $1 2>/dev/null | wc -l)
if [ ${#Queue_Num} -eq 1 -a $Queue -eq 1 ];then
echo $Queue_Num
else
echo "Usage $0 (Type the correct value)"
fi
9. 脚本：处理ftp文件
'''
#!/bin/bash
declare -A ftp_cfg
ftp_cfg=([IP]="127.0.0.1" [PORT]="21" [USER]="test1" [PASSWORD]="abc@123" [FTP_DIR]="/var/ftp/test1" [HOST_DIR]="/tmp/ftp_dir/upload_ftp")
nowTime=$(date +"%F %T")
logFileName="$(date +%F).txt"
logFilePath="/tmp/ftp_dir/ftp_logs"
sendFileToFtp()
{
ftp -n << EOF
open ${ftp_cfg[IP]} ${ftp_cfg[PORT]}
user ${ftp_cfg[USER]} ${ftp_cfg[PASSWORD]}
cd ${ftp_cfg[FTP_DIR]}
binary
lcd ${ftp_cfg[HOST_DIR]}
put $1 $2
rename $2 $3
close
bye
EOF
}
operateFile()
{
FileArry=$(ls ${ftp_cfg[HOST_DIR]})
touch $logFilePath/$logFileName
cd ${ftp_cfg[HOST_DIR]}
for file in ${FileArry[*]};do
echo $file | egrep '.now|.done'
if [ $? -ne 0 ];then
doneFileArray[i]="$file"
let i++
mv $file "$file.done"
echo -e "[ ${nowTime} ]\t name file name $file to $file.done" >> $logFilePath/$logFileName
else
echo "not done file $file"
fi
done
for file in ${doneFileArray[*]};do
sendFileToFtp "$file.done" "$file.now" $file
echo -e "[ ${nowTime} ]\t send file $file to ${ftp_cfg[FTP_DIR]}" >> $logFilePath/$logFileName
done
}
operateFile
'''
#用途：
将本地路径下不包含后缀".done|.now"的文件 先增加后缀".done",然后上传到将".done"文件上传到ftp命名后缀改为".now",然后将后缀去掉
10. 脚本：数组案例
# 随机生成10个数字，并打印最大的数字
'''
#!/bin/bash
for I in {0..9};do
ARRAY[$I]=$RANDOM
echo -en "${ARRAY[$I]}\t"
# sleep 1
done
declare -i MAX=${ARRAY[0]}
INDEX=$[${#ARRAY[*]}-1]
for I in `seq 1 $INDEX`;do
if [ $MAX -lt "${ARRAY[$I]}" ];then
MAX=${ARRAY[$I]}
fi
done
echo -e "\n\nMax_Num:$MAX"
'''
# 交互输入，根据输入输出指定个数的数字，并不重复
#declare -i xxx //声明整数型变量
#declare -r xxx //设置变量为只读
#declare -a xxx //声明数组变量
'''
#!/bin/bash
declare -i NUM
declare -a ARRAY
usage()
{
echo "USAGE:$0 num range_num(num Is not greater than range_num)" && exit 1
}
check()
{
for num in `seq 1 ${#ARRAY[*]}`;do
if [ "$1" -eq "${ARRAY[$num]}" ];then
return 1
fi
done
}
output()
{
for i in `seq 1 $1`;do
while true;do
NUM=$[$RANDOM%$2+1]
check $NUM
[[ $? -eq 0 ]] && break
done
ARRAY[$i]=$NUM
echo "${ARRAY[$i]}"
done
}
main()
{
if [ $# -ne 2 -o $1 -gt $2 ];then
usage
else
output $1 $2
fi
}
main $*
11. while read line判断两个文件夹相同的文件并打包
#!/bin/bash
Src=source
Dst=dest
[ ! -d $Src -o ! -d $Dst ] && exit 1
find ./$Src -type f | awk -F"$Src/" '{print $2}' > source.txt
find ./$Dst -type f | awk -F"$Dst/" '{print $2}' > dest.txt
while read i;do
while read q;do
if [ "$(md5sum source/$i | awk '{print $1}')" = "$(md5sum dest/$q | awk '{print $1}')" ];then
echo $Dst/$i >> bak.txt
fi
done < source.txt
done < dest.txt
tar zcvf backup.tar.gz `cat bak.txt`
rm -f bak.txt source.txt dest.txt