啥也不是
修改私钥密码:ssh-keygen -f private_key -p
LNMP环境IP访问网站:/usr/local/nginx/conf/vhost/host.conf server_name 添加IP地址
awk printf 不会插入换行符
获取WiFi连接设备MAC:hostapd_cli list_sta | awk 'NR>1{print $1}'
Read-only file system:mount -o remount,rw /
网络adb:adb connect ip_address:port