• shred <file> overwrite some file with random content and delete it

• basename/dirname <path> get the basename/dirname of the path
• journalctl -p 3 -xb show system errors and add e[x]planations for current [b]oot
• sudoedit edit files as a super user using specified $EDITOR
• sudo udevadm control --reload && sudo udevadm trigger reload udev rules
• gpg-connect-agent reloadagent /bye reload gpg-agent
• rsync -avu --delete "/home/user/from" "/home/user/to" sync two directories
• git merge-file merged.txt empty.txt file2.txt - merge merged.txt and file2.txt

• mount -o remount -a - remount [a]ll filesystems as defined in /etc/fstab

• pacman -F <name> find which package provides a specified binary
• pacman -Ql <name> list all files installed by a package
• pacman -Rns (pacman -Qtdq) clean orphans
• pacman -Rdd <name> remove a package without removing packages that require it
• pacman -Sc clean cache
• makepkg --printsrcinfo > .SRCINFO generate .SRCINFO for a package

ffmpeg -i input_file -vn -f mp3 output_file

ffmpeg -i video_file -i subtitles_file -c copy -c:s mov_text -metadata:s:s:1 language=eng output_file

yt-dlp -x --audio-format mp3

snapper list-configs

sudo snapper -c <config> list

sudo snapper -v -c root undochange <snapshot id to restore from>..<current snapshot id>

• ctrl+z suspend current job (make a program run in a background)
• fg bring most recently suspended or running background job to foreground
• bear -- make generate compile_commands.json from a compile command

• cat /proc/asound/cards list sound cards

pactl load-module module-combine-sink

And to enable permanently

~/.config/pipewire/pipewire-pulse.conf

context.exec = [
    { path = "pactl"  args = "load-module module-combine-sink" }
]

systemctl --user restart wireplumber pipewire pipewire-pulse

chmod -R 700 ~/.local/share/baloo
balooctl6 disable
balooctl6 purge
balooctl6 enable
touch ~/.local/share/baloo/index

sudo pacman -S archlinux-xdg-menu

# Set this globally
XDG_MENU_PREFIX=arch- kbuildsycoca6

Source

The following packages are required:

android-sdk jdk17-openjdk android-sdk-platform-tools android-sdk-build-tools android-tools android-sdk-cmdline-tools-latest gradle android-studio android-platform android-emulator

If you're still having issues check the permissions on /opt/android-sdk and unset custom $ANDROID_HOME

Fixing permissions:

sudo groupadd android
sudo usermod -a -G android $(whoami)
sudo chown -R root:android /opt/android-sdk
sudo chmod -R g=u /opt/android-sdk

paru -S jadx jadx-gui-desktop

paru -S httptoolkit-bin

Create an AVD with Pixel 8 and Triamisu x86_64 API 33 Android 13.0 (Google APIs) (worked for me the best). Then start httptoolkit and follow in-app instructions.

Follow instrcutinons on Diolinux/PhotoGIMP

First install the requirements

pacman -S pandoc-cli texlive-latex texlive-basic texlive-latexrecommended texlive-fontsrecommended

And then compile it

pandoc file.md -o output.pdf

Go to /etc/systemd/logind.conf and uncomment:

HandlePowerKey=ignore
PowerKeyIgnoreInhibited=yes

sudo systemctl daemon-reload

# Or to reload user configuration
systemctl --user daemon-reload

• reboot
• halt - shutdown

All commands