修改root密码（修改root密码的命令）

root密码修改

#!/bin/bash
#################################
# copyright by hwb
# DATE:2020-11-23
#
#################################

#redis
ROOT_PWD=初始化密码


#调用函数库
[ -f /etc/init.d/functions ] && source /etc/init.d/functions
export PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
source /etc/profile

#Require root to run this script.
[ $(id -u) -gt 0 ] && echo "请用root用户执行此脚本！" && exit 1


#用参数指定需清理的路径和清理天数(变量的值非空返回0，为true)
if [ -n "$1" ];then
  ROOT_PWD=$1
  echo "root用户设定密码为：$ROOT_PWD"
fi

# auto install redis-3.2
function pwd_mod() 
{
  echo ""
  echo -e "\033[33m*************************************修改服务器root用户密码****************************************\033[0m"
  echo ""
  echo -e "\033[36m Usage: $0  '服务器密码'[注意要添加单引号，防止特殊字符bug] \033[0m"
  echo ""
  
  echo ${ROOT_PWD}| passwd --stdin root
# passwd root <<EOF
# ${ROOT_PWD}
# ${ROOT_PWD}
# ${ROOT_PWD}
# EOF
  
  if [ $? -eq 0 ];then
     action "成功修改服务器密码: ${ROOT_PWD}" /bin/true
  else
     action "无法修改服务器密码" /bin/false
	 exit $?
  fi 
  

  echo -e "\033[33m************************************完成服务器root用户密码修改*************************************\033[0m"
  echo ""
}


pwd_mod

实现结果