linux - 键入时隐藏输入密码(shell)

Question

我想在输入时隐藏像******这样的输入密码。这是我创建的代码

set valid_password = $<
set password = '1234'

if ( password != valid_password) then
      echo 'please re-enter password'

else

if (password == valid_password) then
      echo 'password is correct'

end

exit

Answer 1

如果您只是没有得到任何密码字符回显(而不是 *)是可以接受的，那么以下 CSH 将循环直到输入有效密码:

#!/bin/csh

set valid_password = '1234'
while (1)
  echo -n "Enter your password: "
  set password = $<
  if ("$password" == "$valid_password") break
  echo "Incorrect password!"
end
echo "Goody!"