obs是一个非常好用的录屏软件，我们在windows安装和使用是非常的简单，但是在ubuntu安装还是比较麻烦的，需要使用命令行，还需要很多的依赖。

修改源

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

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

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

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

deb http://archive.canonical.com/ubuntu focal partner
deb-src http://archive.canonical.com/ubuntu focal partner

安装依赖

sudo apt install v4l2loopback-dkms

安装OBS

sudo add-apt-repository ppa:obsproject/obs-studio
sudo apt update
sudo apt install ffmpeg obs-studio

初始化配置

见：https://blog.csdn.net/qq_45642410/article/details/120889267

设置语言

设置保存路径

OBS框选区域进行录制

https://zhuanlan.zhihu.com/p/564097463

参考：

1、OBS官方安装教程
2、ubuntu 20.04 安装录屏软件 OBS 及卸载

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3、Ubuntu20.04 LTS 用simpleScreenRecorder 录制屏幕，解决包找不到原因，ubuntu 20.04 LTS国际源source.list文件
4、