常用命令总结
1. 删除安装的软件
Uninstall just cargo
sudo apt-get remove cargo
This will remove the cargo package and any other dependant packages which are no longer needed.
Purging your config/data too
If you also want to delete your local/config files for cargo then this will work.
Caution! Purged config/data can not be restored by reinstalling the package.sudo apt-get purge cargo
Or similarly, like this cargo
sudo apt-get purge --auto-remove cargo
2. 搜索已经安装的包
2.1. apt list --installed 列出所有安装的包
方案来源：https://www.cnblogs.com/it-tsz/p/11107510.html （这个方案里还有dpkg和apt的各种找安装包、删除安装包的命令）
3. ubuntu terminal窗口最大化最小化快捷键 alt+F10