• Install Arch

    2 min read · arch

    Requirements partitions Keyboard layout changed. 1ls /usr/share/kbd/keymaps/**/*.map.gz 1loadkeys uk.map.gz Check if boot mode is UEFI 1ls /sys/firmware/efi/efivars Without efivars, the system must boot with BIOS. Check network's up 1ping archlinux.org Set system clock properly 1timedatectl set-ntp true Check disks …


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  • Install yay

    1 min read · distros arch

    Requirements Install Arch partitions 1pacman --sync --noconfirm --needed base-devel gcc git 2git clone https://aur.archlinux.org/yay.git 3cd yay 4makepkg -si The flags are mostly the same as in pacman. But running yay without flags will do the update like yay -Syu and with package name it will search packages in the …


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  • Instantly cd anywhere in bash

    1 min read · system bash

    Change locations quickly with the bash built-in variable: $CDPATH. 1CDPATH=~ Now if you want to enter /docs/ you can type cd docs, even if you're not in your home directory. Add multiple locations with a colon between them. 1CDPATH=/archives/$(date +%Y/%m/)::/projects/:/mnt/share/ The first one will let you enter …


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  • Interactive String Substitution

    1 min read · data vim substitution replace TUI

    Want to find and replace, but also confirm each instance? 1vim -c "%s/${pattern}/${replacement}/gc" -c 'wq' ${file} Notice that double-quotes (") in the first command (-c). Alternatively, check with an example string: 1sed "s/${pattern}/ARGLEBARGLE/g" ${file} | grep 'ARGLEBARGLE'


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  • IP Addresses with Recfiles

    1 min read · data recfiles games

    Requirements Recfiles Download the Database Download the csv data, and separate the ipv4 data from the ipv6. 1curl -Lo ips.zip 'https://www.kaggle.com/api/v1/datasets/download/ipinfo/ipinfo-country-asn' 2unzip -p ips.zip country_asn.csv | csv2rec | recsel -e "start_ip ~ '.'" > ipv4.rec 3unzip -p ips.zip …


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  • iptables

    2 min read · networking

    Intro This is a basic Linux firewall program. Look at your firewalls: 1iptables -L We see the output of input, output and forwarding rules. Forward I don't need any forwarding, so I'm going to drop all forwarding: 1iptables -P FORWARD DROP Input Let's 'A'dd, or 'A'ppend a rule with -A. Let's drop all input from a …


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  • jenkins

    1 min read · void build

    Jenkins on Void Jenkins is janky. Start Start the service file. 1su root 2ln -s /etc/sv/jenkins /var/service 3sv start jenkins Then visit the web interface with $BROWSER localhost:8080. If it's not working, try running the command from the run file the first time: 1chpst -u jenkins java -jar /opt/jenkins/jenkins.war …


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  • Joyous ASCII

    1 min read · fun

    asciiquarium cbonsai -lim "$(fortune)" printf 'w\na\n' | ssh -tt nethack@alt.org 1cow=$(cowsay -l | sort -R | head -1) 2fortune -s | figlet | cowsay -nf $cow | lolcat Watch the Collatz Conjecture collapse: 1x="$(du -sc ~/.cache | tr -d '[:alpha:]' | tail -1)" 2until [ "$x" -eq "1" ]; do 3 test "$(( x % 2 ))" -eq 0 && …


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  • kernel modules

    1 min read · system

    Kernel modules live in lib/modules/$(uname -r) Change Load them with 1modprobe ath9k Or remove one with 1modprove uvcvideo The PC's irritating speaker beep can be really annoying. Disable it with: 1modprobe -r pcspeaker Permanently disable a module by blacklisting it in /etc/modprobe.d: 1echo 'blacklist pcspkr' > …


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  • keyboard

    1 min read · keyboard vim

    System-Wide Capslock and Escape Swap This works everywhere, including in a bare-ass tty. Select a keymap, and create a new custom map. 1su root 2ls /usr/share/kbd/keymaps/i386/qwerty/ 3 4basemap=/usr/share/kbd/keymaps/i386/qwerty/pl1.map.gz 5newmap=/usr/share/kbd/keymaps/custom.map.gz 6 7gunzip -c $basemap | \ 8 sed …


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