Ubuntu常用命令合集

Ubuntu apt命令

更新软件源：apt-get update
更新升级所有软件：apt-get upgrade
升级系统版本：apt-get dist-upgrade
列举其他apt-get 命令：apt-get help
安装一个软件包：apt-get install package_name
删除一个软件包：apt-get remove package_name
清理旧版本的软件缓存：sudo apt-get autoclean
清理所有软件缓存：sudo apt-get clean
删除系统不再使用的孤立软件：sudo apt-get autoremove

Ubuntu跟换阿里源

Ubuntu阿里云镜像：https://developer.aliyun.com/mirror/ubuntu?spm=a2c6h.13651102.0.0.3e221b11B4AZp0

vi编辑器打开：/etc/apt/sources.list
Ubuntu 20.04添加以下配置

deb http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse

关机重启

关机：sudo shutdown
重启：sudo reboot

查看系统情况

查看内核版本：uname -a
查看ubuntu版本：cat /etc/issue
查看当前的内存使用情况：free -m
查看当前有哪些进程：ps -A
杀死一个进程：kill id / killall id / kill -9 id

安装ssh-server

安装 openssh-server：sudo apt-get install openssh-server
确认sshserver是否启动：ps -e | grep ssh