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Here's how to recreate a missing UEFI boot menu entry (in the mainboard's NVRAM) via efibootmgr - as well as how one could end up with such an entry being missing, and what error you might see when that entry is missing.
It’s a good idea to update the Arch Linux mirrorlist file from time to time. This post discusses how to use the reflector package to generate a new mirrorlist.
Cheat sheet of some dm-crypt commands and configs that I seem to use somewhat frequently.
FZF, the fuzzy command-line finder, is a really useful small tool for your command line that makes it easier to 1. quickly search your shell’s command history, 2. quickly find+select files/folders to pass to a command, and 3. quickly find a directory and change into it.
On most Linux machines the timezone is configured with the file /etc/localtime. This file most often is a link to a timezone settings file, e.g. inside /usr/share/zoneinfo/. As a consequence, the local timezone can easily be changed by pointing /etc/localtime the target timezone file.
Here's a "cheat sheet" style list of useful Arch Linux pacman commands that I use frequently (some from time to time). Some of those commands require root permission, hence will require sudo on most systems.
On Linux, when using X as a graphical user interface, one quick way for changing the mouse pointer speed - independently of the distribution you are on - is using xinput. This posts highlights practicalities and gives hint for using xinput for this purpose.
Want an easy way to get rid of margins in a pdf file on Linux? For example, when embedding the pdf file as figure somewhere? Then pdfcrop might be the tool for you. It is an extremely easy (probably the easiest possible for such a tool), quick, and reliable tool to sove your problem.
This post highlights how to make any DBUS notification use the demands_attention flag, which can be used to mark the corresponding application, window, or workspace as requiring attention. This might be especially useful for e.g. users of the i3 window manager: for applications that show popup notifications (e.g. Dunst) but do not set the urgency hint, there often is no visual hint after the popup has disappeared. The solution is to intercept the notification in Dunst and set the urgency hint by hand - which works with any any EWHM/NetWM compatible X window manager, including the i3 window manager.
When you run Linux on your work machine (desktop, laptop, etc), you usually want to be informed in some way about system updates being available. This post showcases two scripts for Arch Linux and Debian/Ubuntu to represent the update status in short, concise, and human understandable string, which can be included in any status bar, like i3blocks or i3status with the i3/i3-gaps window manager.
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