60天shell脚本计划-9/12-渐入佳境

[root@135 41_custome_encrypt_string]# cat custome_encrypt_string.sh

#!/bin/bash

#自定义一个简单的一键加密解密的命令，并封装成一个命令。

#加密

encrypt(){

  echo -e "\e[32m进行加密操作...................\e[0m"

  input_string=$1

  echo -e "\e[34m原字符串：\e[33m ${input_string}\e[0m"

  en_string=`echo "ibase=16; $(echo "${input_string}" |xxd -ps -u)" |bc`

  echo "原字符串：${input_string}  加密结果：${en_string}" >> .secure_string

  echo -e "\e[34m加密结果：\e[33m ${en_string}\e[0m ,信息已经保存到文件中。"

}

#解密

decryption(){

  #解密必须是数字，可以参考之前我判断字符串类型的脚本进行处理在https://www.cnblogs.com/Pigs-Will-Fly/p/14399775.html中第二脚本。

  echo -e "\e[32m进行解密操作...................\e[0m"

  input_string=$1

  echo -e "\e[34m原字符串：\e[33m ${input_string}\e[0m"

  #echo -e "${1}P"

  Decrypted_string=`dc -e ${1}P`

  echo -e "\e[34m解密结果：\e[33m ${Decrypted_string}\e[0m。"

}

#判断条件是否满足

check_env(){

  if which bc  &>/dev/null;then

    let bc_r=0

  else

    let bc_r=1

    echo -e "\e[31m bc软件不存在，请先安装。\e[0m"

  fi

  if which xxd &>/dev/null;then

    let xxd_r=0

  else

    let xxd_r=1

    echo -e "\e[31m xxd软件不存在，请先安装。\e[0m"

  fi

  if which dc &>/dev/null;then

    let dc_r=0

  else

    let dc_r=1

    echo -e "\e[31m dc软件不存在，请先安装。\e[0m"

  fi

  echo  -en "\e[34m环境检查结果: \e[0m"

  let total_r=${bc_r}+${xxd_r}+${dc_r}

  #echo -e "\e[33m环境检查的结果为：${total_r}\e[0m"

  if [  ${total_r} -eq 0 ];then

    echo  -e "\e[32m环境满足要求。\e[0m"

  else

    echo  -e "\e[31m环境不满足要求，无法进行后续操作，请检查相关软件是否存在。\e[0m"

    exit 66

  fi

}

#在main函数中判断用户的输入根据输入选择加密还是解密

main(){

  #判断函数是否有输入，加密解密选项可选，默认加密。 如果加密字符串不存在则提示命令不对，退出。

  input_type=${2:-encrypt}

  if [ -z "${1}" ];then

    echo -e "\e[31m Not input string。\n \e[33mUsage: input_string [encrypt|decryption]\e[0m"

    exit 55

  fi

  #检查系统环境是否满足脚本运行。

  check_env

  #按照不同的操作类型执行相应的操作。

  case ${input_type} in

    "encrypt")

      encrypt $1

      ;;

    "decryption")

      decryption $1

      ;;

    *)

     echo 'Usage: input_string [encrypt|decryption]'

     exit

    ;;

  esac

  echo -e "\e[0m"

}

main $1 $2

[root@135 42_gen_ansible_dir_structure]# cat gen_ansible_dir_structure.sh

#!/bin/bash

#创建roles对应的文件夹结构

create_dir(){

  #获取用户输入的的应用名

  if [ -z "${1}" ];then

    echo -e "\e[31m 没有指定应用名，程序退出了，再见。\e[0m"

    exit 44

  fi 

  #创建目录

  input_dir_name=${1}

  mkdir roles/${input_dir_name}/{files,tasks,templates,vars,handlers,meta,default}  -p &>/dev/null

  dir_file=`pwd`

  echo -e "\e[34m文件夹创建结果: \e[0m"

  cd roles/${input_dir_name}/

  if [ -d files ] && [ -d tasks ] && [ -d templates ] && [ -d vars ] && [ -d handlers ] && [ -d meta ] && [ -d default ];then

    echo -e  "\e[32m目录创建完成。\e[0m"

  else

    echo -e "\e[31m目录创建失败。具体信息。\033[0m"

    exit 33

  fi

}

create_file(){

  input_dir_name=$1

  cd ${dir_file}

  #判断是否存在文件,存在则提示是否继续，继续则备份原有文件。

  if [ -f roles/${input_dir_name}/tasks/main.yml ];then

    echo -e "\e[33m main.yml文件已经存在，确认是否继续生成。\e[0m"

    read -p "输入Y(继续) / N(退出),默认不继续：" input

    chose=${input:-N}

    #判断用户是否确定继续执行。

    if [ "${chose}"=="Y" ];then

      echo -e "\e[33m用户选择了继续执行。\e[0m"

      cp -rp roles/${input_dir_name}/tasks/main.yml roles/${input_dir_name}/tasks/main.yml.bak &>/dev/null

    else

      echo -e "\e[31m用户选择不继续执行，程序退出。\e[0m"

      exit 22

    fi

  fi

  #创建tasks下main.yml文件

  echo -e '- include: mode_1.yml\n- include: mode_2.yml\n- include: mode_3.yml' >  roles/${input_dir_name}/tasks/main.yml

  if [ -f ${input_dir_name}.yml  ];then

    echo -e "\e[31m同名调用文件已经存在，不创建新的文件，程序退出。\e[0m"

    exit 99

  fi

  echo -e "---\n- hosts: websrvs\n  remote_user: root\n  roles:\n    - ${input_dir_name}" > ${input_dir_name}.yml

  echo -e "\e[32m文件结构生成完成。\e[0m"

}

main(){

   create_dir $1

   create_file $1

}

main $1

[root@135 43_Draw_the_heart]# cat Draw_the_heart.sh

#!/bin/bash

#画心心

draw_hear(){

  y=1.25

  yy=46

  while [[ yy -gt 0 ]];

  do

    xx=-120

    x=-1.14

    while [[ 0 -gt xx ]];

    do

      cc=$(echo `awk -v a=${x} -v b=${y} 'BEGIN{printf "%.125f\n",a*a+b*b-1}'`)

      bb=$(echo `awk -v a=${cc} -v b=${y} -v c=${x} 'BEGIN{printf "%.125f\n",a*a*a-c*c*b*b*b}'`)

      ff=$(echo `awk -v a=${bb}  'BEGIN{printf "%.0f\n",a*10000000}'`)

      if [[ ff -le 0 ]]; then

        printf "\e[1;41m \e[0m"

      else

        printf " "

      fi

      x=$(echo `awk -v a=${x} -v b=0.02 'BEGIN{printf "%.125f\n",a+b}'`)

      xx=$(echo `awk -v a=${xx} -v b=1 'BEGIN{printf "%.0f\n",a+b}'`)

    done

    printf "\n"

    y=$(echo `awk -v a=${y} -v b=0.05 'BEGIN{printf "%.10f\n",a-b}'`)

    yy=$(echo `awk -v a=${yy} -v b=1 'BEGIN{printf "%.0f\n",a-b}'`)

  done

}

main(){

  draw_hear

}

main

[root@135 44_auto_delete_dir]# cat auto_delete_dir.sh

#!/bin/bash

#shows files to be deleted

list_file(){

  find /var/log/ -mtime +185 -type d -name "20*" > /opt/auto_clear_log/.temp_dir_name.txt

}

#delete dir file

clear_file(){

  #判断待删除文件是否为空，如果为空则提示不删除，并把结果置入到/var/log/messages中

  if [[ ! -s /opt/auto_clear_log/.temp_dir_name.txt ]];then

    echo "`date` not exec clear operation." >> /var/log/messages

    #echo -e "\e[31m`date` not exec clear operation.\e[0m"

  else

    #依次读取待删除文件内容，一条一条的删除。

    for i in `cat /opt/auto_clear_log/.temp_dir_name.txt`

    do

      #echo -e "\e[33m ${i} dir file will delete.\e[0m "

      #判断是否删除成功，删除成功则记录到/var/log/messages文件中.

      if  rm -rf  ${i} &> /dev/null;then

        echo "`date` ${i} dir_file delete succeed."  >> /var/log/messages

        #echo -e "\e[33m`date` ${i} dir_file delete succeed.\e[0m"

      else

        echo "`date` ${i} dir_file delete failed."   >> /var/log/messages

        #echo -e "\e[31m`date` ${i} dir_file delete failed.\e[0m"

      fi

    done

  fi

}

#main function

main(){

  list_file

  clear_file

}

#call main function

main

[root@135 45_oracle_startup]# cat oracle_startup.sh

#/bin/bash

su - oracle <<EOF

source /home/oracle/.bash_profile

lsnrctl start

export ORACLE_SID=orcl

sqlplus / as sysdba <<EOE

startup

EOE

EOF

#check database services  status

program_num=0

port_num=0

#check database port

if ss -alntup | grep 1521 &>/dev/null;then

  echo "`date` Oracle Database The listener starts normally,1521 Port listening........" >>  /var/log/messages

else

  port_num=1

  echo "`date` Oracle Database The listener starts an exception"  >> /var/log/messages

fi

#total oracle program num

tmp_program_num=`ps -ef | grep ora_  | grep -v grep | wc -l`

if [ ${tmp_program_num} -gt 5 ];then

  echo "`date` Oracle Database process normal."   >> /var/log/messages

else

  echo "`date` Oracle Database process exception."  >> /var/log/messages

  program_num=1

fi

if [ ${port_num} -eq 1 ] || [ ${program_num} -eq 1 ];then

  echo "`date` Oracle Database startup exception."   >> /var/log/messages

else

  echo "`date` Oracle Database startup success."   >> /var/log/messages

fi