创建一个bash脚本通知阿里云用户在60天到期前通过email修改密码

Question

嗨，我收到一个错误

chage: 用户 'user' 在 /etc/passwd 中不存在 ")语法错误: 无效的算术运算符（错误标记为 "

谁能帮我找出我的错误。 tq

#!/bin/庆典

recipient="someane@gmail.com"  # Set the email address of the recipient
subject="Alibaba Cloud Pasword Change Reminder"

 # Check the password expiration date
 expiration_date=$(chage -l user | grep "Password expires" | awk -F ":" '{print $2}')
 expiration_timestamp=$(date -d "$expiration_date" +%s)
 current_timestamp=$(date +%s)
 difference_in_seconds=$((expiration_timestamp-current_timestamp))
 difference_in_days=$((difference_in_seconds/60/60/24))

如果 [ "$difference_in_days" -le 60 ]; 然后#Send an email if the password will expire in 60 days message="Hello,

This is a reminder to change your Alibaba Cloud account password. It is important to regularly      update your password to ensure the security of your account.

Your password will expire in $difference_in_days days. Please be sure to change it before it expires.

Thank you,

产品团队”

   echo "$message" | mail -s "$subject" "$recipient"  #Send the email using the mail command
  fi

Answer 1

chage -l user正在查找有关用户user的信息。 我期待用户名的变量。 另外，您应该检查命令是否成功：

user=...
if ! expires=$(chage -l "$user" | sed -n '/Password expires/s/.*: //p')
then
   // handle error
fi