如何使用命令提示符或批处理文件检查用户是否存在？

Question

我正在尝试创建一个删除用户的脚本。我想检查输入的用户是否存在，这样我就可以说它已删除或该用户不存在。

我已经尝试了一些我以前在网上找到的东西，但都不起作用。这就是我到目前为止所拥有的。

:DelUser
cls
echo You chose to delete a user
echo ==========================
net user
echo ==========================
set UserDel=What is the name of the user you want to delete?
echo deleting user %UserDel%.....
net user | find /i %UserDel% || goto UserNoExist
net user %UserDel% /delete
echo User %UserDel% is deleted
goto Users

:UserNoExist
echo This user does not exist
pause
goto DelUser

Answer 1

1)可以使用net user命令的退出码。如果用户存在，则返回0。%ERRORLEVEL%变量将具有退出代码。

2)为了在命令提示符中获得输入，您应该在/p中使用SET命令。

set /p UserDel=What is the name of the user you want to delete?

所以你的代码应该是这样的：

set /p UserDel=What is the name of the user you want to delete?
net user %UserDel%
if %ERRORLEVEL% EQU 0 (     
    net user %UserDel% /delete  
    echo User %UserDel% is deleted
) else (
    echo This user does not exist
)

Answer 2

也许只有这个？

@echo off & set drop=
set /p "_usern=Enter user to delete: "
for /f "tokens=1" %%i in ('net user ^| find /i "%_usern%"') do set "drop=%%i"
if defined drop (net user %drop% /delete) else (echo %_usern% does not exist)

另一种方法是首先获取用户列表，然后从列表中选择一个用户，这意味着他/她显然是存在的：

@echo off
@for /f "skip=4tokens=1" %i in ('net user') do @echo %I
set /p "_usern=Select user from list to delete: "
net user %_usern% /delete