免密sudo

adduser username
vim /etc/sudoers
username ALL=(ALL) NOPASSWD: ALL

禁用root登陆

passwd -S root #查看
root L 06/03/2024 0 99999 7 -1
passwd -l root #禁用

修改服务器名

hostnamectl set-hostname newname

命令补全

vim /etc/inputrc
"\e[A": history-search-backward
"\e[B": history-search-forward
bind -f /etc/inputrc

vim

set paste
set number
# set invnumber 翻转set number设置

时区

timedatectl set-timezone Asia/Shanghai

温度监控

apt install lm-sensors
modprobe drivetemp
sensors

被执行脚本绝对路径

script_dir=$(dirname $(readlink -f $0))