this post was submitted on 22 Feb 2026
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made my first bash file to make yt-dlp easier (lemmy.ml)
submitted 1 day ago by RavenofDespair@lemmy.ml to c/linux@lemmy.ml
46 comments fedilink hide all child comments
 

made it so i just click file and paste YouTube url

Linux is amazing

#! /usr/bin/bash
echo "Enter a url"
read a

yt-dlp -x $a
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[–] 0t79JeIfK01RHyzo@lemmy.ml 2 points 1 day ago* (last edited 1 day ago) (1 children)

What does your ~/.bashrc look like? My last change was modifying a playlist command

spoiler: I explain my last change to my ~/.bashrc file

playlist https://www.youtube.com/@YouTube/videos

or

playlist /home/username/Videos

or just from any directory with files

playlist

And then takes all the videos found at the url or at the path (including within folders), adds them to a playlist, shuffles them, and plays them from mpv.

playlist() {
        param=""

        # If the first parameter has a length more than 1 character
        if [ ${#1} -gt 1 ]; then
                param="${@}"
        else
                param="."
        fi

        screen mpv $param --shuffle --ytdl-raw-options-add=cookies-from-browser=firefox --loop-playlist=inf --no-keepaspect-window --no-auto-window-resize
}

other functions and aliases in my ~/.bashrc

alias code=codium
alias files=nautilus
alias explorer=nautilus
alias rust="/path/to/.cargo/bin/evcxr"
alias sniffnet="export ICED_BACKEND=tiny-skia; /path/to/.cargo/bin/sniffnet"
alias http-server='/path/to/.cargo/bin/miniserve'
alias iphone='uxplay'
alias airplay='uxplay'
alias watch='screen mpv --ytdl-raw-options-add=remote-components=ejs:github --ytdl-raw-options-add=cookies-from-browser=firefox --no-keepaspect-window '
alias twitch='watch'
alias timeshift-launcher="pkexec env WAYLAND_DISPLAY='$WAYLAND_DISPLAY' XDG_RUNTIME_DIR='$XDG_RUNTIME_DIR' /usr/bin/timeshift-launcher"
alias update="sudo apt update && sudo apt upgrade -y && sudo flatpak update -y && sudo snap refresh"
alias resize="path/to/resize/videos/resize.sh"

playlist() {
        param=""

        # If the first parameter has a length more than 1 character
        if [ ${#1} -gt 1 ]; then
                param="${@}"
        else
                param="."
        fi

        screen mpv $param --shuffle --ytdl-raw-options-add=cookies-from-browser=firefox --loop-playlist=inf --no-keepaspect-window --no-auto-window-resize
}

gif() { ffmpeg -i $1 -f yuv4mpegpipe - | gifski -o $2 ${@:3} -;}

[–] db2@lemmy.world 1 points 1 day ago (1 children)

I wonder if we have the same resize.sh

[–] 0t79JeIfK01RHyzo@lemmy.ml 1 points 1 day ago (1 children)

The version I have was copied from stackoverflow. It doesn't work very well, it makes a rough estimate to get the video file size under the set value. As an example

resize video.mp4 10

Which then resizes the video to 10 megabytes if possible.

resize.sh code

file=$1
target_size_mb=$2  # target size in MB
target_size=$(( $target_size_mb * 1000 * 1000 * 8 )) # target size in bits
length=`ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 "$file"`
length_round_up=$(( ${length%.*} + 1 ))
total_bitrate=$(( $target_size / $length_round_up ))
audio_bitrate=$(( 128 * 1000 )) # 128k bit rate
video_bitrate=$(( $total_bitrate - $audio_bitrate ))
ffmpeg -i "$file" -b:v $video_bitrate -maxrate:v $video_bitrate -bufsize:v $(( $target_size / 20 )) -b:a $audio_bitrate "${file}-${target_size_mb}mb.mp4"

I'll probably replace it eventually.

[–] db2@lemmy.world 2 points 1 day ago* (last edited 1 day ago) (1 children)

Definitely not the same lol

Mine uses ffmpeg to change the resolution, it doesn't so much care about file sizes.

It could be a one-liner if you only ever feed it a single file to manipulate..

[–] 0t79JeIfK01RHyzo@lemmy.ml 2 points 1 day ago

I might add one for scaling. I just don't use it as frequently as trying to meet a file size limit. The scaling is also much easier to remember

ffmpeg -i  in.mp4 -vf "scale=600:-1" -an out.mp4

It does get complicated though, when scaling many videos and images, I've used something like the following in the past

find .  -exec ffmpeg -i {} -vf "scale=1920:1080:force_original_aspect_ratio=decrease,pad=1920:1080:-1:-1:color=black" {}.mp4 \;

Those were the only two that showed up when I typed history | grep scale.

after commenting, I also added a new video file resizer.

It works significantly better than the one I previously posted. It's also copied from stackoverflow.

bitrate="$(awk "BEGIN {print int($2 * 1024 * 1024 * 8 / $(ffprobe \
    -v error \
    -show_entries format=duration \
    -of default=noprint_wrappers=1:nokey=1 \
    "$1" \
) / 1000)}")k"
ffmpeg \
    -y \
    -i "$1" \
    -c:v libx264 \
    -preset medium \
    -b:v $bitrate \
    -pass 1 \
    -an \
    -f mp4 \
    /dev/null \
&& \
ffmpeg \
    -i "$1" \
    -c:v libx264 \
    -preset medium \
    -b:v $bitrate \
    -pass 2 \
    -an \
    "${1%.*}-$2mB.mp4"