Linux

#Create predefined session with multiple tabs/panes (rss, bluetooth, docker...)
tmux-start 

#Create predefined tmux session with ncmpcpp and ueberzug cover
music 

#Comfort
ls = "ls --color=auto"
please = "sudo !!"

#Quick weather check
weatherH='curl -s "wttr.in/HomeCity?2QF"' 

#Download Youtube playlist videos in separate directory indexed by video order in playlist -> lectures, etc
ytPlaylist='yt-dlp -o "%(playlist)s/%(playlist_index)s - %(title)s.%(ext)s"'

#Download whole album  -> podcasts primarily 
ytAlbum='yt-dlp -x --audio-format mp3 --split-chapters --embed-thumbnail -o "chapter:%(section_title)s.%(ext)s"'

# download video -> extract audio -> show notification
ytm()
{
	tsp yt-dlp -x --audio-format mp3 --no-playlist -P "~/Music/downloaded" $1 \
		--exec "dunstify -i folder-download -t 3000 -r 2598 -u normal  %(filepath)q"

}

# Provide list of optional packages which can be manually selected
pacmanOpts()
{
typeset -a os
for o in `expac -S '%o\n' $1`
do
  read -p "Install ${o}? " r
  [[ ${r,,} =~ ^y(|e|es)$ ]] && os+=( $o )
done

sudo pacman -S $1 ${os[@]}
}

# fkill - kill process
fkill() {
  pid=$(ps -ef | sed 1d | fzf -m --ansi --color fg:-1,bg:-1,hl:46,fg+:40,bg+:233,hl+:46 --color prompt:166,border:46 --height 40%  --border=sharp --prompt="➤  " --pointer="➤ " --marker="➤ " | awk '{print $2}')

  if [ "x$pid" != "x" ]
  then
    kill -${1:-9} $pid
  fi
}

Technically not an alias, because I just use nushell's history + autocompletion everytime I use it, but one could alias it. I think I might even write a custom command for it, with path argument, some day. Anyway, here it goes:

rsync -aPh -e "ssh -p 2222" test@172.16.0.86:/storage/emulated/0/PicturesArchive/ ~/PicturesArchive/

I run an ssh daemon on my phone, and use this snippet to back up my photos.

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 wrote a script called please. You input please followed by any other command (e.g. please git clone, please wget blahblah) and a robotic voice will say "affirmative," then the command will run, and when it completes, the robotic voice reads out the exit code (e.g. "completed successfully" or "failed with status 1" etc.)

This is useful for when you have a command that takes a long time and you want to be alerted when it's finished. And it's a gentleman.

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

Here are probably the most useful ones. I prefer for rm to be interactive so I don't accidentally delete something important and for mkdir to create a parent directory if necessary.

alias mkdir='mkdir -p'
alias podup='podman-compose down && podman-compose pull && podman-compose up -d'```

This extract function (which I didn't make myself, I got it from when I was using [nakeDeb](https://nakedeb.arpinux.org/)) has been pretty useful too.

```function extract()
{
     if [ -f $1 ] ; then
         case $1 in
             *.tar.bz2)   tar xvjf $1     ;;
             *.tar.gz)    tar xvzf $1     ;;
             *.bz2)       bunzip2 $1      ;;
             *.rar)       unrar x $1      ;;
             *.gz)        gunzip $1       ;;
             *.tar)       tar xvf $1      ;;
             *.tbz2)      tar xvjf $1     ;;
             *.tgz)       tar xvzf $1     ;;
             *.zip)       unzip $1        ;;
             *.Z)         uncompress $1   ;;
             *.7z)        7z x $1         ;;
             *.xz)        unxz $1         ;;
             *)           echo "'$1' cannot be extracted via >extract<" ;;
         esac
     else
         echo "'$1' is not a valid file"
     fi
}```

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.

alias sl=“ls“

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

alias fuck='sudo $(history -p \!\!)'

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)"

For doing stuff in a directory, I use a replacement for cd command.

For aliases:

alias +='git add'
alias +p='git add -p'
alias +u='git add -u'
alias -- -='cd -'
alias @='for i in'
alias c='cargo'
alias date='LANG=C date'
alias diff='cdiff'
alias gg='git grep -n'
alias grep='grep --color=auto'
alias ll='ls -o'
alias ls='ls -vFT0 --si --color=auto --time-style=long-iso'
alias rmd='rmdir'

I also have various small scripts and functions:

• a for package management (think apt but has simplified arguments which makes it faster to use in usual cases),
• e for opening file in Emacs,
• g for git,
• s for sudo.

And here’s ,:

$ cat ~/.local/bin/,
#!/bin/sh

if [ $# -eq 0 ]; then
	paste -sd,
else
	printf '%s\n' "$@" | paste -sd,
fi

$ which diffuc
diffuc: aliased to diff -uw --color=always

$ which grepnir
grepnir: aliased to grep -niIr

$ cat `which ts`
#!/bin/bash

if [ "$#" -lt 1 ]; then
                tmux list-sessions
                exit
fi

if ! tmux attach -t "$1"
then
                tmux new-session -s "$1"
fi

This tmux wrapper is remarkably convenient:

Usage:

# Usage: t [session-name]
#
# With no arguments:
#   Lists existing tmux sessions, or prints "[No sessions]" if none exist.
#
# With a session name:
#   Attempts to attach to the named tmux session.
#   If the session does not exist, creates a new session with that name.
#
# Examples:
#   t            # Lists all tmux sessions
#   t dev        # Attaches to "dev" session or creates it if it doesn't exist

function t {
	if [[ -z $1 ]]; then
		tmux ls 2> /dev/null || echo "[No sessions]"
	else
		tmux attach -t $@ 2> /dev/null
		if [[ $? -ne 0 ]]; then
			tmux new -s $@
		fi
	fi
}

on most of my systems I get tired of constantly lsing after a cd so I combine them:

cd(){
    cd $1 && ls
}

(excuse if this doesn't work, I am writing this from memory)

I also wrote a function to access docker commands quicker on my Truenas system. If passed nothing, it enters the docker jailmaker system, else it passes the command to docker running inside the system.

docker () {
        if [[ "$1" == "" ]]; then
                jlmkr shell docker
                return
        else
                sudo systemd-run --pipe --machine docker docker "$@"
                return
        fi
}

I have a few similar shortcuts for programs inside jailmaker and long directories that I got sick of typing out.

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

alias gimme='git checkout'

alias cd..="cd .."

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.

Since 720p downloading isn't really available on yt-dlp anymore, I made an alias for it

alias yt720p="yt-dlp -S vcodec:h264,fps,res:720,acodec:m4a"

I usually set up an alias or script to update everything on my system. For example, on Ubuntu, I would do this: alias sysup='snap refresh && apt update && apt upgrade'

And on Arch, I do this: alias sysup ='flatpak update && paru'

Funny enough you'd need to use sudo to run this on Ubuntu, but not in the Arch example because paru being neat

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.

alias ed=$EDITOR

Extremely convenient on a qwerty keyboard.

This should probably be a default nowadays. Does even a single person here use the real ed ?

jmpd(jump directory): fuzzy finds and opens directory with fzf

# fish shell
function jmpd
    set _selection $(fzf --walker=dir);
    if test -n "$_selection"
        cd "$_selection";
    end
end

I have a collection of about 8 machines around the house (a lot of Raspberry Pi) that I ssh around to from various points.

I have setup scripts named: ssp1 ssp2 ssba ss2p etc. to ssh into the various machines, and of course shared public ssh keys among them to skip the password prompt. So, yes, once you are "in" one machine in my network, if you know this, you are "in" all of them, but... it's bloody convenient.

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.