一键开启或关闭 sudo 输入密码时的星号显示功能

pwfeedback.sh

#!/bin/bash
# 一键配置 sudo 密码输入是否显示星号
# 用法: ./pwfeedback.sh on|off

set -e

CONFIG_FILE="/etc/sudoers.d/0pwfeedback"

if [ "$EUID" -ne 0 ]; then
  echo "请使用 root 或 sudo 运行该脚本"
  exit 1
fi

case "$1" in
  on)
    echo "Defaults pwfeedback" > "$CONFIG_FILE"
    echo "已开启：sudo 输入密码时会显示星号 (*)"
    ;;
  off)
    echo "Defaults !pwfeedback" > "$CONFIG_FILE"
    echo "已关闭：sudo 输入密码时不显示星号"
    ;;
  *)
    echo "用法: $0 {on|off}"
    exit 1
    ;;
esac

开启星号显示

curl -sSL https://gist.github.com/Deali-Axy/409d3d22099a6547f92f761a8cfeeab4/raw/e684032255024fe085663e29487ac0107abd06c6/pwfeedback.sh | sudo bash -s on

关闭星号显示

curl -sSL https://gist.github.com/Deali-Axy/409d3d22099a6547f92f761a8cfeeab4/raw/e684032255024fe085663e29487ac0107abd06c6/pwfeedback.sh | sudo bash -s off