linux - 如何处理 shell 登录脚本中的错误密码？

Question

我制作了一个备份脚本，使用 smbclient 命令将文件上传到文件共享 Windows 服务器。我的脚本工作正常，但如果用户键入不正确的用户名或密码，脚本将停止。我希望它再次询问登录名和密码，直到正确为止。

我试着这样做:

#!/bin/bash

unset user
unset pass
testLoginValue=false

while [[ "$testLoginValue" = false ]]; do
        while [ -z ${user} ]; do
                read -p "Username: " user
        done
        while [ -z ${pass} ]; do
                read -sp "Password: " pass
        done

        testLogin=$(smbclient '\\my.windows.server.ip\folder\' $pass -U domain\\$user -c 'help') # This connect to the server and get the result of the "help" command

        if [[ $testLogin == "session setup failed: NT_STATUS_LOGON_FAILURE" ]]; then
                echo "Username or password incorrect."
        else
                echo "Successful connection."
                testLoginValue=true
        fi
done

echo "the script will continue..."

问题是，对于这段代码，脚本在循环中回显 "Username or password incorrect." 没有停止。我希望它回显 "Username or password incorrect." 一次，然后再次询问凭据。我该怎么做？

Answer 1

vars user 和 pass 必须再次unset。开始于

#!/bin/bash
testLoginValue="false"

while [[ "${testLoginValue}" = "false" ]]; do
   unset user
   unset pass
   while [ -z "${user}" ]; do
      read -p "Username: " user
   done
   while [ -z "${pass}" ]; do
     read -sp "Password: " pass
   done

题外话:或许把循环改成

while :; do
   ...
   if [[ "${somevar}" = "Successful connection." ]]; then
      break
   fi
done