Deleting All Lines in Vim
There are two common methods to delete all lines in Vim. First, in command mode, press `gg` to jump to the beginning of the file, then enter `dG`. Here, `gg` positions the cursor at the first line, and `dG` deletes from the current line to the end of the file. Second, directly enter `:%d` in command mode and press Enter. The `%` denotes the entire file range, and `d` is the delete command. After execution, the file content is cleared. If there are unsaved changes, Vim will prompt whether to save when exiting.
Read MoreHow to Install or Update Graphics Card Drivers in Ubuntu System
There are common methods to update graphics card drivers in Ubuntu. The third method is recommended in the introduction. Method 1 uses the official repository: first, run `sudo apt update` to update the package list, then `sudo apt upgrade -y` to upgrade. Method 2 is for NVIDIA: you can install a driver management tool or use the graphical tool `sudo nvidia-settings`. Method 3 is to add the Graphics Drivers PPA repository by executing `sudo add-apt-repository ppa:graphics-drivers/ppa` and other steps in sequence.
Read MoreInstalling Ubuntu Linux Subsystem on Windows 10
This article introduces two methods to install the Ubuntu subsystem on Windows 10. The first method is to search and obtain it through the Microsoft Store, which requires opening the Settings and enabling Developer Mode first. The second method is to use the command `lxrun /install` in PowerShell for installation. The detailed process includes downloading the installation package, setting up the username and password, and other steps. After installation, you can launch the Ubuntu subsystem by entering "bash" in PowerShell and check the root directory to confirm the successful installation. If uninstallation is needed, you can use the PowerShell command... (Note: The original Chinese text was cut off at "uninstall can be done in Powe", so the translation assumes the continuation with relevant commands, but only the provided content is translated as per the user's input.) （根据用户提供的原文结尾截断情况，上述翻译中保留了原文最后不完整的部分“can be done in Powe”，完整翻译需基于完整原文。若用户实际原文末尾还有内容，需补充完整后再次翻译。）
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