【shell系列】环境管理必备工具shell

#!/usr/bin/env bash

#-----------------------------------------------------------------------------
# author: wmh
# 脚本说明：for循环.
#-----------------------------------------------------------------------------

for1() {
  array=(a b c)
  for i in ${array[@]}; do
    echo "for循环: ${i}"
  done
}

for2() {
  array1=(a1 b1 c1)
  array2=(a2 b2 c2)
  for ((i = 0; i < ${#array1[@]}; i++)); do
    for ((i = 0; i < ${#array2[@]}; i++)); do
      echo "for循环 第i=${i}次: ${array1[i]} ${array2[i]}"
    done
  done
}

for3() {
  array1=(a1 b1 c1)
  array2=(a2 b2 c2)
  #数组位置的话需要加!
  for i in ${!array1[@]}; do
    for j in ${!array2[@]}; do
      # ${i} -eq ${j}: 表示参数i和参数j的位置相同
      if [ ${i} -eq ${j} ]; then
        echo "for循环 第i=${i} j=${j}次: array1=${array1} array2=${array2}"
        echo "for循环 第i=${i} j=${j}次: array1=${array1[$i]} array2=${array2[$j]}"
        echo " "
      fi
    done
  done
}

for1
for2
for3

#!/bin/bash

#-----------------------------------------------------------------------------
# author: wmh
# 脚本说明：检查服务进程是否存在, 若不存在则进行钉钉通知.
#-----------------------------------------------------------------------------

time=$(date +%Y-%m-%d_%H:%M:%S)

# content里面的参数需要加 ''
funDingTalk() {
  curl 'https://oapi.dingtalk.com/robot/send?access_token=1234567890' \
    -H 'Content-Type: application/json' \
    -d '{"msgtype": "text",
       "text": {
          "content": "'$time' '${HOSTNAME}' '$1' has been killed"
         }
       }'
}

pid_check() {
  pid=$(ps aux | grep $1 | grep -v grep | awk '{print $2}')
  if [ "$pid" ]; then
    echo -e "\033[32m$time $1 $pid 存在进程\n\033[0m"
  else
    echo -e "\033[31m$time $1 无进程\n\033[0m"
    funDingTalk $1
  fi
}

app_list=(app1 app2 app3 app4)

for i in ${app_list[@]}; do
  pid_check $i
done

#!/bin/bash

#-----------------------------------------------------------------------------
# author: wmh
# 脚本说明：读取txt内容, 切割字符串.
#-----------------------------------------------------------------------------

array1=$(cat ./demo.txt)
array2='a,b,c'

for arr in ${array1}; do
  vars=(${arr//,/ })
  echo "获取变量1: ${vars[0]} ${vars[1]} ${vars[2]}"

  for var in ${vars[@]}; do
    echo "获取变量2: ${var}"
  done
  echo " "
done

demo.txt内容如下：a1,a2,a3
b1,b2,b3
c1,c2,c3

#!bin/bash

#-----------------------------------------------------------------------------
# author: wmh
# 脚本说明：检测启动后输出的日志是否包含关键字, 包含在退出程序, 不包含则继续.
#-----------------------------------------------------------------------------

var=`cd /tmp/bin && su username stop.sh; su username start.sh`

echo "var关键字: $var"

if [[ $var = *not* ]];then
    echo "包含关键字啦, 退出"
    exit 1
else
    echo "不包含关键字, 正常输出"
fi

#!/bin/bash

#-----------------------------------------------------------------------------
# author: wmh
# 脚本说明：清除文件.
#-----------------------------------------------------------------------------

echo "清除3天前的tmp|zip文件"
find /tmp/*/logs -mtime +3 | egrep "\.(tmp|zip)$" | xargs rm -f

echo "清除1天前的gz文件"
find /tmp/ -mtime +1 -name "*.gz" | xargs rm -f

echo "清除重定向大日志文件"
for i in $(find /tmp/*/logs/catalina.out); do
  cat /dev/null >$i
done

echo "清除僵尸进程"
for n in $(lsof | grep delete | awk '{print $2}'); do
  echo $n
  kill -9 $n
done

#!/usr/bin/env bash

#-----------------------------------------------------------------------------
# author: wmh
# 脚本说明：批量给文件名添加前缀, 只支持文件, 不支持文件夹. 注：cp表示复制, mv表示剪切
#-----------------------------------------------------------------------------

cd /tmp
for i in $(ls); do
  cp -rf $i "prefix_"$i
done

https://github.com/WEIMHaaa/wei-notebook.git
https://gitee.com/weimenghua/wei-notebook.git