here we go:

dedup:

#!/usr/bin/awk -f
!x[$0]++

this removes duplicate lines, preserving line order

iter:

#!/usr/bin/bash
if [[ "${@}" =~ /$ ]]; then
    xargs -rd '\n' -I {} "${@}"{}
else
    xargs -rd '\n' -I {} "${@}" {}
fi

This executes a command for each line. It can also be used to compare two directories, ie:

du -sh * > sizes; ls | iter du -sh ../kittens/ > sizes2

fadeout:

#!/bin/bash
# I use this to fade out layered brown noise that I play at a volume of 130%
# This takes about 2 minutes to run, and the volume is at zero several seconds before it's done.
# ################
# DBUS_SESSION_BUS_ADDRESS is needed so that playerctl can find the dbus to use MPRIS so it can control mpv
export DBUS_SESSION_BUS_ADDRESS="unix:path=/run/user/1000/bus"
# ################
for i in {130..0}
do
    volume=$(echo "scale=3;$i/100" | bc)
    sleep 2.3
    playerctl --player=mpv volume $volume
done

lbn:

#!/bin/bash
#lbn_pid=$(cat ~/.local/state/lbn.pid)
if pgrep -fl layered_brown
then
	pkill -f layered_brown
else
	export DBUS_SESSION_BUS_ADDRESS="unix:path=/run/user/1000/bus"
	mpv -ao pulse ~/layered_brown_noise.mp3 >>lbn.log 2>&1 &
	sleep 3
	playerctl -p mpv volume 1.3 >>lbn.log 2>&1 &
fi

This plays “layered brown noise” by crysknife. It’s a great sleep aid.

here are some aliases:

alias m='mpc random off; mpc clear'
alias mpcc='ncmpcpp'
alias thesaurus='dict -d moby-thesaurus'
alias wtf='dict -d vera'
alias tvplayer='mpv -fs --geometry=768x1366+1366+0'

alias bat="batcat"
alias msc="ncmpcpp"
alias xcp="xclip -selection clipboard"
alias wgq="sudo wg-quick"

also a couple to easily power on/off my 4g modem

One of favorites cds to the root of a project directory from a subdirectory,

# Changes to top-level directory of git repository.
alias gtop="cd \$(git rev-parse --show-toplevel)"

I have a few:

loginserver

• 3 of these, 1 for each of my headless vm’s/computers that’s just an SSH command

dcompose(d/pull) - docker compose (down/pull)

3 scripts that are just docker compose up/down/pull, as scripts (remind me in 6 hours and I will post the scripts) so that it will CD to my compose folder, execute the command (with option for naming specific containers or blank for all) and then CD back to the directory I started in.

function seesv
    column -s, -t < $argv[1] | less -#2 -N -S
end

I used this a lot when I had to deal with CSV files — it simply shows the data in a nice format. It’s an alias for the fish shell by the way.

alias clip='xclip -selection clipboard'

When you pipe to this, for example ls | clip, it will stick the output of the command ran into the clipboard without needing to manually copy the output.

I often want to know the status code of a curl request, but I don’t want that extra information to mess with the response body that it prints to stdout.

What to do?

Render an image instead, of course!

curlcat takes the same params as curl, but it uses iTerm2’s imgcat tool to draw an “HTTP Cat” of the status code.

It even sends the image to stderr instead of stdout, so you can still pipe curlcat to jq or something.

#!/usr/bin/env zsh

stdoutfile=$( mktemp )
curl -sw "\n%{http_code}" $@ > $stdoutfile
exitcode=$?

if [[ $exitcode == 0 ]]; then
  statuscode=$( cat $stdoutfile | tail -1 )

  if [[ ! -f $HOME/.httpcat$statuscode ]]; then
    curl -so $HOME/.httpcat$statuscode https://http.cat/$statuscode
  fi

  imgcat $HOME/.httpcat$statuscode 1>&2
fi

cat $stdoutfile | ghead -n -1

exit $exitcode

Note: This is macOS-specific, as written, but as long as your terminal supports images, you should be able to adapt it just fine.

I’ve only used aliases twice so far. The first was to replace yt-dlp with a newer version because the version that comes pre-installed in Linux Mint is too outdated to download videos from YouTube. The second was because I needed something called “Nuget”. I don’t remember exactly what Nuget is but I think it was a dependency for some application I tried several months ago.

alias yt-dlp='/home/j/yt-dlp/yt-dlp'
alias nuget="mono /usr/local/bin/nuget.exe"

alias fucking='sudo' (my coworkers often used prettyplease instead)

alias gl='git log'
alias server-name-here='ssh server-name-here'

I have a bunch of the server aliases. I use those and gl the most.

https://github.com/pyr0ball/PRbL-bashrc.git

My own bash library, includes a self-installer and a nifty login banner

I have a few interesting ones.

Download a video:

alias yt="yt-dlp -o '%(title)s-%(id)s.%(ext)s' "

Execute the previous command as root:

alias please='sudo $(fc -n -l -1)'

Delete all the Docker things. I do this surprisingly often:

alias docker-nuke="docker system prune --all --volumes --force"

This is a handy one for detecting a hard link

function is-hardlink {
  count=$(stat -c %h -- "${1}")
  if [ "${count}" -gt 1 ]; then
    echo "Yes.  There are ${count} links to this file."
  else
    echo "Nope.  This file is unique."
  fi
}

I run this one pretty much every day. Regardless of the distro I’m using, it Updates All The Things:

function up {
  if [[ $(command -v yay) ]]; then
    yay -Syu --noconfirm
    yay -Yc --noconfirm
  elif [[ $(command -v apt) ]]; then
    sudo apt update
    sudo apt upgrade -y
    sudo apt autoremove -y
  fi
  flatpak update --assumeyes
  flatpak remove --unused --assumeyes
}

I maintain an aliases file in GitLab with all the stuff I have in my environment if anyone is curious.

#Create a dir and cd into it
mkcd() { mkdir -p "$@" && cd "$@"; }

Ooooou I got a couple :3

This one is just a basic mirror fixing thing cuz sometimes I go a while without updating pacman:

alias fixpkg='rate-mirrors --protocol https arch | sudo tee /etc/pacman.d/mirrorlist && sudo pacman -Syy'

This function I made to create virtual audio sinks so I can route audios via qpw and play earrape into discord calls if I want XD

create_vsink() {
    local sink_name=${1:-vsink}  # Default sink name is 'vsink' if no input is provided
    local description=${2:-"Virtual Sink"}  # Default description
    pactl load-module module-null-sink sink_name="$sink_name" sink_properties=device.des>
    echo "Virtual sink '$sink_name' created with description '$description'."
}

Simple parser function I made that makes a whole repo using my git key so it’s not just locally created I kinda forgot why I made it tbh:

git_clone() {
    local url="${1#https://}"  # Remove "https://" if present
    git clone "https://$git_key@$url"
}

Awesome mpv function I made that allows for real time pitch+speed shifting via hotkeys and is flexible with extra parameters and shit:

mpv_pitch() {
    if [[ -z "$1" ]]; then
        echo "Usage: mpv_pitch <file> [mpv-options]"
        return 1
    fi
    local file="$1"
    shift
    mpv --input-conf=/dev/stdin "$file" "$@" <<EOF
SHIFT+RIGHT add audio-pitch-correction 0; add pitch 0.01; add speed 0.01  # Decrease pit>
SHIFT+LEFT add audio-pitch-correction 0; add pitch -0.01; add speed -0.01 # Increase pit>
EOF
}

Automatic audio router for firefox audio streams that uses the aforementioned create_sink function to make a specific sink that I can use carla on to mix and make cool shit out of haha

firefox_crush() {
    create_vsink CrunchSink "CrunchSink" 
    firefox --name firefox-vc &

    (while true; do
        SINK_INPUT_ID=$(pactl list sink-inputs short | grep "firefox" | awk '{print $1}')
        if [[ -n "$SINK_INPUT_ID" ]]; then
            pactl move-sink-input "$SINK_INPUT_ID" CrunchSink
            break
        fi
        sleep 0.25
    done) &
}

it’s somewhat vibe coded but the one i probably use the most is this one to swap between speakers and headset. the device name to look for is just put directly in there, it’d take some adjustment to run it on different machines. this is in my .bashrc:

# switch sinks
toggle_audio() {
  # Find headset sink ID dynamically
  headset_id=$(pactl list sinks short | grep "Plantronics" | awk '{print $1}')
  
  # Find speakers sink ID dynamically
  speakers_id=$(pactl list sinks short | grep "pci-0000_05_00.6" | awk '{print $1}')
  
  # Get current default sink
  current_sink=$(pactl get-default-sink)
  
  # Get current sink ID
  current_id=$(pactl list sinks short | grep "$current_sink" | awk '{print $1}')
  
  # Toggle between the two
  if [ "$current_id" = "$headset_id" ]; then
    pactl set-default-sink "$speakers_id"
    echo "Switched to speakers (Sink $speakers_id)"
  else
    pactl set-default-sink "$headset_id"
    echo "Switched to headset (Sink $headset_id)"
  fi
}

generally i try not to use too many custom things because for work i regularly work on all kinds of different servers and i’ve just been too lazy to set up some solution to keep it all in sync. someday…