简介： 本文主要为大家介绍 Ubuntu Linux 在使用中的一些小技巧。
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一、Ubuntu 国内更新源
命令更新：
sudo vi /etc/apt/sources.list ##国内源优先选择aliyunsudo apt-get updatesudo apt-get upgrade
1. Aliyun
deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
2. 网易163
deb http://mirrors.163.com/ubuntu/ bionic main restricted universe multiversedeb http://mirrors.163.com/ubuntu/ bionic-security main restricted universe multiversedeb http://mirrors.163.com/ubuntu/ bionic-updates main restricted universe multiversedeb http://mirrors.163.com/ubuntu/ bionic-proposed main restricted universe multiversedeb http://mirrors.163.com/ubuntu/ bionic-backports main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ bionic main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ bionic-security main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ bionic-updates main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ bionic-proposed main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ bionic-backports main restricted universe multiverse
3. 清华大学
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiversedeb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiversedeb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiversedeb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiversedeb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiversedeb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiversedeb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiversedeb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiversedeb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiversedeb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
4.中国科技大学
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiversedeb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiversedeb https://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiversedeb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiversedeb https://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiversedeb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiversedeb https://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiversedeb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiversedeb https://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiversedeb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
二、openssh-server 安装和启动
sudo apt-get updatesudo apt-get install openssh-serverps -e | grep ssheval ssh-agentsudo /etc/init.d/ssh restart
三、关闭图形界面
1. version < 18.04.4
sudo vi /etc/default/grub
得到以下的文件
# If you change this file, run 'update-grub' afterwards to update# /boot/grub/grub.cfg.# For full documentation of the options in this file, see:# info -f grub -n 'Simple configuration'GRUB_DEFAULT=0GRUB_TIMEOUT_STYLE=hiddenGRUB_TIMEOUT=0GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"##GRUB_CMDLINE_LINUX_DEFAULT="text"GRUB_CMDLINE_LINUX=""# Uncomment to enable BadRAM filtering, modify to suit your needs# This works with Linux (no patch required) and with any kernel that obtains# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"# Uncomment to disable graphical terminal (grub-pc only)#GRUB_TERMINAL=console# The resolution used on graphical terminal# note that you can use only modes which your graphic card supports via VBE# you can see them in real GRUB with the command `vbeinfo'#GRUB_GFXMODE=640x480# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux#GRUB_DISABLE_LINUX_UUID=true# Uncomment to disable generation of recovery mode menu entries#GRUB_DISABLE_RECOVERY="true"# Uncomment to get a beep at grub start#GRUB_INIT_TUNE="480 440 1"
将GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"注释掉，打开GRUB_CMDLINE_LINUX_DEFAULT="text"
sudo update-grubreboot
打开的话，就是相反的操作
2. 18.04.4
- 关闭图形界面
sudo systemctl set-default multi-user.targetsudo reboot
- 打开图形界面
sudo systemctl set-default graphical.targetsudo reboot
本文转自：Ubuntu 使用小技巧-阿里云开发者社区
