I created a bash script to download videos from Youtube using yt-dlp
This will remove all sponsors, download subtitles and view it when you are watching a video. Modify and Share this all over if you like!
Edit: Give credits to this community or Lemmy in general if you are posting this or a modified form (please do share) of this elsewhere. Some popularity would do Lemmy good.
Few requirements:
- You should be using Linux to run it.
- Create a folder named
yt-dlp
in Videos folder or else change the location in the script below. - You should have
yt-dlp
notyoutube-dl
on your system. You can do this bysudo apt install yt-dlp
or use your distro's package installer. - Save this file with any
name
in your home folder (or whichever folder you are you most comfortable with and give it execution permissions bychmod +x name
Debian Pastebin Thanks to folds at debian for making a tor network friendly pastebin. I have noticed that sometimes scripts get corrupted here, so best copy this from pastebin: https://paste.debian.net/1293211/
edit: deleted the codeblock as it was not rendering properly https://i.imgur.com/1lrTcdT.png
You can get the updated code here https://paste.debian.net/1293211/ Just paste it on to your notepad and give it execution permissions.
#edit 1: The program can be improved, if you guys feel like an improvement is needed, copy the entire program modify the parts you think can be made better and paste it in the comments or paste the pastebin link in the comments. I realize there are applications which are gui for yt-dlp but I felt they lacked many options. You can go on the man page, and learn and add attributes to make this script better so that it better suits your needs.
#man page aka github page: yt-dlp
Script to export a SVG to PNG with a certain width. IDK why the exported picture has not this size.
The issue is that if my script is correctly done, a SVG is supposed to be exported to PNG with a fixed width, the script seems to work fine, but when I check it out again on Inkscape*, it shows me the original SVG size, not the resized PNG exported picture.
Here's a folder with the script and a random SVG I'm using for testing.
*To check the size of the picture in Inkscape, we need to change the units in the top bar, and then see the numbers that shows. The screenshot shows a 14,79 cm x 9,85 cm, instead of 10,5 cm x 6,9 cm.
I want to have a selector in a "case" menu, so I show the options:
1) option A
2) option B
3) option C
Then read the choice (let's say it's B), remove the previous menu and show this instead:
1) option A
» 2) option B
3) option C
How can I do this? I know we can remove the current line with echo -ne "\r"
, but I have no idea of how to do it with several
Woland Azel (@wolandark@mastodon.social)
https://mastodon.social/@wolandark/110925361857381396
Attached: 1 video So today I sat down to practice guitar and I realized that I left both my metronomes at my sister's room. Obviously I wasn't going to get up to go and fetch one, so I picked up a bash spell tome (man SoX) and with a little bash magic, made a basic metronome. Here is the actual code: ``` tempo () { play -n -c1 synth 0.001 sine 1000 pad $(awk "BEGIN { print 60/$1 -.001 }") repeat 999999 } ``` #bash #linux #musicproduction #coding #sox
Script: Get MPV watch history from watch_later dir. Numbered selector to pick file to play
This script will get MPV watch history from files watch_later dir and display them in reverse order of watch. The list is numbered and a prompt for a number will play the desired file in MPV
Need line "write-filename-in-watch-later-config=yes" in mpv.conf Deps rg (ripgrep)
#!/usr/bin/env bash
# Return mpv watch history oldest to newest.
# Need line "write-filename-in-watch-later-config=yes" in mpv.conf
# Deps rg
watch_later_dir="$HOME/.config/mpv/watch_later/"
SAVEIFS=$IFS
IFS=$'\n'
if [ ! -d "$watch_later_dir" ]; then
echo "Specified dir doesn't exist: $watch_later_dir"
echo "Set var watch_later_dir to your watch later dir"
echo "also, mpv.conf should have line \"write-filename-in-watch-later-config=yes\""
exit 1
fi
watch_later_files="$(find "$watch_later_dir" -type f -printf "%T@ %p\n" | sort | sed 's/^\([0-9]\+\.[0-9]\+\) //')"
file_count=$(find "$watch_later_dir" -type f | wc -l)
if [ "$file_count" -eq 0 ]; then
echo "no files found in \"$watch_later_dir\""
exit 1
fi
watch_later_files=($watch_later_files)
filepaths_not_echoed="$(for (( i=0; i<${#watch_later_files[@]}; i++ ))
do
cat "${watch_later_files[$i]}" | rg -o --color=never '(/|http).*'
done)"
filepaths_not_echoed=($filepaths_not_echoed)
# Reverse the order of array
length=${#filepaths_not_echoed[@]}
for ((i=0; i<length/2; i++)); do
temp="${filepaths_not_echoed[i]}"
filepaths_not_echoed[i]="${filepaths_not_echoed[length-i-1]}"
filepaths_not_echoed[length-i-1]="$temp"
done
filepaths="$(for (( i=0; i<${#watch_later_files[@]}; i++ ))
do
echo -n "$(( $i - $file_count +1 )) " | sed 's/^-//'
cat "${watch_later_files[$i]}" | rg -o --color=never '/.*'
done)"
#echo "$filepaths" | perl -pe 's/^(\d+ ).*\//$1/g' | rg \
echo "$filepaths" | sed -E 's/^([0-9]+ ).*\//\1/g' | rg \
--colors 'match:none' \
--colors 'match:fg:0,200,0' \
--colors 'match:bg:0,0,0' \
--colors 'match:style:bold' \
"[^0-9 ].*"
IFS=$SAVEIFS
read -p "Enter number to play " selection
echo "${filepaths_not_echoed[$selection]}"
setsid >/dev/null 2>&1 </dev/null \
mpv "${filepaths_not_echoed[$selection]}" 2>&1 >/dev/null &
Script: Convert all webp to jpg if static or gif/mp4 if animated
This will convert all webp in a directory to jpg or mp4 if animated. It will utilize all cores with gnu parallel. It will also handle an error with ffmpeg that happens if animated webp pixel width or height is an odd number by padding 1 pixel if necessary
cat convertwebp
#!/usr/bin/env bash
# Convert webp to jpg if static or gif/mp4 if animated
# Pads animated webp to avoid "libx264 not divisible by 2 error"
# Deps imagemagick libwebp parallel
# Usage assuming saved as convertwebp
# convertwebp # Will convert all webp in current dir to jpeg or mp4 and gif if animated
# convertwebp /some/dir/ # Same but on specified dir
# convertwebp /some/file # Same but on specified file
######### Set jpg quality. There will be 2 outputs one of each quality setting
# 0-100 percent
export QUALITY_ONE=35
export QUALITY_TWO=75
find_args=(-maxdepth 1 -type f -regextype posix-extended -iregex '.*\.(webp)$' -print0)
dir="$PWD"
if [[ -d "$@" ]]; then
dir="$@"
echo "Dir $@"
else
if [[ -f "$@" ]]; then
dir="$@"
echo "File $@"
fi
fi
mkdir -p "$MY_DWEBP_OUTDIR"
find "$dir" "${find_args[@]}" | parallel -0 -j+0 --eta --bar '
jpg_out_quality_one=$(echo {/.}_"$QUALITY_ONE"_percent.jpg)
jpg_out_quality_two=$(echo {/.}_"$QUALITY_TWO"_percent.jpg)
png_out=$(echo {/.}.ffmpeg.png)
gif_out=$(echo {/.}.gif)
mp4_out=$(echo {/.}.mp4)
isanimated="$(webpmux -info {} | grep animation)"
if [[ "$isanimated" == "Features present: animation transparency" ]]; then
convert '{}' "$gif_out"
# Begin mp4 conversion handler to pad geometry 1 pixel to x and y if either are odd to avoid "libx264 not divisible by 2 error"
geometry_x=$(webpmux -info '{}' | head -n 1 | tr "[:space:]" "\n" | tail -3 | head -n 1)
geometry_y=$(webpmux -info '{}' | head -n 1 | tr "[:space:]" "\n" | tail -3 | tail -1)
if [ $(( $geometry_x % 2)) -ne 0 ] | [ $(( $geometry_y % 2)) -ne 0 ]; then
if [ $(( $geometry_x % 2)) -ne 0 ] && [ $(( $geometry_y % 2)) -ne 0 ]; then
splice_geometry="1x1"
gravity_direction="northeast"
convert -splice $splice_geometry -gravity $gravity_direction '{}' "$mp4_out"
else
if [ $(( $geometry_x % 2)) -ne 0 ]; then
splice_geometry="1x0"
gravity_direction="east"
convert -splice $splice_geometry -gravity $gravity_direction '{}' "$mp4_out"
else
if [ $(( $geometry_y % 2)) -ne 0 ]; then
splice_geometry="0x1"
gravity_direction="north"
convert -splice $splice_geometry -gravity $gravity_direction '{}' "$mp4_out"
fi
fi
fi
else
convert '{}' "$mp4_out"
fi
# End mp4 conversion handler to pad geometry 1 pixel to x and y if either are odd to avoid "libx264 not divisible by 2 error"
else
dwebp '{}' -o - | convert - -quality $QUALITY_ONE% "$jpg_out_quality_one" # pipe to convert for filesize reduction
dwebp '{}' -o - | convert - -quality $QUALITY_TWO% "$jpg_out_quality_two" # pipe to convert for filesize reduction
fi
'
unset QUALITY_ONE
unset QUALITY_TWO
Fast password generator script
The default character set excludes easy to confuse characters ILOl0. It is fast too
Generating 1 million 40 character passwords
time pw -n 1000000 >/dev/null
0.47s user 0.24s system 229% cpu 0.310 total
cat pw
#!/usr/bin/env bash
#set -x
num_passwords=20 # Default number of passwords to return.
pw_len=40 # Default password length.
random_data='/dev/urandom' # Random data
urandom_bytes_default=300000 # Default random bytes to read.
letters='A-HJ-KM-NP-Za-km-z' # Default letters set.
numbers='1-9' # Default numbers set.
symbols='!?*^_@#%^&*()=+<>}{][;:",./|~\\'\''`-' # Default symbols set. If dash "-" is needed, put it at the end
characters="$letters$numbers$symbols" # All default sets combined
min_calculated_urandom_bytes=20000 # Minimum bytes when calculated. Fix issue when not enough data for simple character sets
urandom_bytes_user=0 # Leave at 0, for use with logic of -b , --bytes=
urandom_bytes_calculated=0 # Leave at 0, for use with end logic
regex_match_flags="^-(b|-bytes=|c|-characters=|l|-length=)$" # Pattern to check against a flag being blank and reading next flag as arguemnt
while test $# -gt 0; do
case "$1" in
-h|--help)
echo " "
echo " "
echo " "
echo "pw - generate passwords"
echo " "
echo "pw [options]"
echo " "
echo "options:"
echo "-b NUM , --bytes=NUM Specify bytes to read from "$random_data". Not compatible with flag -n, --ncount. Defaults to $urandom_bytes_default bytes"
echo "-c 'CHAR', --characters='CHAR' Specify allowed password characters. Defaults to '$characters'"
echo "-h , --help Show brief help"
echo "-l NUM , --length=NUM Specify password length. Defaults to length of $pw_len"
echo "-n NUM , --ncount=NUM Specify number of passwords to return. Not compatible with flag -b, --bytes"
echo " "
echo " "
echo " "
echo " "
echo "examples:"
echo " "
echo " "
echo "# 20 character alphanumeric with symbols "'!?"*#-'" using 20000 bytes of data from "$random_data""
echo "pw --bytes=20000 --characters='a-zA-Z0-9"'!?"*#-'"' --length=20"
echo " IjLVomO*LZIvBWhmITtS"
echo "pw -b 20000 -c 'a-zA-Z0-9"'!?"*#-'"' -l 20"
echo " IjLVomO*LZIvBWhmITtS"
echo " "
echo " "
echo " "
echo "# 200 passwords using default values"
echo "pw --ncount=200"
echo ' !=[8x|d`dHdVA-:xn8t>G=~tkgbg}T#~2(/r?9N&'
echo " ...{200 lines}"
echo " "
echo "pw -c '18bu' -l 10 -n 2"
echo " bb8b8bb1ub"
echo " 88b1ub8b8u"
echo " "
echo " "
echo "pw -c '0-4' --length=80 --ncount=10"
echo " 10132440443120133034412013333104142320411133221101130324111200442311420044122312"
echo " "
echo " "
echo "pw -c 'zplaeiou' --length=80 --ncount=1"
echo " uuzzzalilepauzuepaazoizoeiiaazupupalolzliluuoazluzuepzlozepapaioipupapleuzaolpuu"
echo " "
echo " "
echo "pw -c '1-4*-' -l 10 -n 2"
echo " 2414443*24"
echo " *123-*4-31"
echo " "
echo " "
echo "pw -b 400 -c 'a-zA-Z0-9 [#!?*(){}~[]/\\-]'\''' -l 40"
echo " EVuMxtVR**6}?M2HTZlED{ARjKL?D]r8h[7Pidvo"
echo " "
echo " "
echo " "
exit 0
;;
-b)
shift
# Test that -b value (previously shifted $1) is gt 0 before setting var urandom_bytes_user
# And test that $pw_line_count_target has not been set
if [[ $1 -gt 0 ]] && [[ -z $pw_line_count_target ]] 2> /dev/null; then
urandom_bytes_user=$1
urandom_bytes_default=0
pw_line_count_target=0
else
printf "error: \"-b NUM\" needs numeral greater that 0. Value > 1000 recommended\n"
exit 1
fi
shift
;;
--bytes*)
# Test that --bytes value "${1/*"="/}" is gt 0 before setting var urandom_bytes_user
# And test that pw_line_count_target is not set
if [[ "${1/*"="/}" -gt 0 ]] && [[ $pw_line_count_target -le 0 ]] 2> /dev/null; then
urandom_bytes_user="${1/*"="/}"
urandom_bytes_default=0
pw_line_count_target=0
else
if [[ ! $pw_line_count_target -le 0 ]] 2> /dev/null; then
printf "\nflag -n, --ncount not compatible with flag -b, --bytes\n"
exit 1
else
printf "error: usage \"--bytes=NUM\" needs numeral greater that 0. Value > 1000 recommended\n"
exit 1
fi
fi
shift
;;
-c)
shift
# Before set var characters, test for -c value (previously shifted $1) being blank,
# or another flag shifted in as unintended -c value.
if [[ ! -z $1 ]] && [[ ! "$1" =~ $regex_match_flags ]]; then
characters="$1"
else
printf "error: usage \"-c 'CHARACTERS'\" (allowed password characters) needs value\n"
exit 1
fi
shift
;;
--characters*)
# Before set var characters, test for --characters string "${1/*"="/}" being blank,
# or another flag shifted in as unintended --characters string by checking
# $characters_to_check for regex match on $regex_match_flags.
characters_to_check="${1/*"="/}"
if [[ ! -z "${1/*"="/}" ]] && [[ ! "$characters_to_check" =~ $regex_match_flags ]]; then
characters="${1/*"="/}"
else
printf "error: usage \"--characters 'CHARACTERS'\" (allowed password characters) needs value\n"
exit 1
fi
shift
;;
-l)
shift
# Test that -l value (previously shifted $1) is gt 0 before setting var pw_len
if [ $1 -gt 0 ] 2> /dev/null; then
pw_len=$1
else
printf "error: usage \"-l NUM\" (password length) needs numeral greater that 0\n"
exit 1
fi
shift
;;
--length*)
# Test that --length value "${1/*"="/}" is gt 0 before setting var pw_len
if [[ "${1/*"="/}" -gt 0 ]] 2> /dev/null; then
pw_len="${1/*"="/}"
else
printf "error: usage \"--length=NUM\" (password length) needs numeral greater that 0\n"
exit 1
fi
shift
;;
-n)
shift
# Test that -b value (previously shifted $1) is gt 0 before setting var pw_line_count_target
if [ $1 -gt 0 ] ; then
pw_line_count_target=$1
urandom_bytes_default=0
else
printf "error: \"-n NUM\" needs numeral greater that 0\n"
exit 1
fi
shift
;;
--ncount*)
# Test that --bytes value "${1/*"="/}" is gt 0 before setting var pw_line_count_target
if [[ "${1/*"="/}" -gt 0 ]] ; then
pw_line_count_target="${1/*"="/}"
urandom_bytes_default=0
else
printf "error: usage \"--ncount=NUM\" needs numeral greater that 0\n"
exit 1
fi
shift
;;
*)
break
;;
esac
done
# Test that urandom_bytes_user has not been changed from 0
# And test that pw_line_count_target gt 0
if [[ $pw_line_count_target -gt 0 ]] && [[ $urandom_bytes_user -eq 0 ]] ; then
count_out_of_10000="$(head -c 10000 < "$random_data" | tr -dc "$characters" | wc -c)"
urandom_bytes_calculated=$(( (13000/$count_out_of_10000) * ($pw_len * $pw_line_count_target) ))
if [[ $urandom_bytes_calculated -lt $min_calculated_urandom_bytes ]] ; then
urandom_bytes_calculated=$min_calculated_urandom_bytes
fi
else
if [[ $pw_line_count_target -gt 0 ]] && [[ $urandom_bytes_user -ne 0 ]] ; then
printf "\nflag \" -n|--ncount \" not compatible with flag \" -b|--bytes \"\n"
exit 1
fi
fi
if [[ $pw_line_count_target -eq 0 ]]; then
pw_line_count_target=$num_passwords
fi
# PW generation bits
urandom_bytes=$(( ($urandom_bytes_default) + ($urandom_bytes_user) + ($urandom_bytes_calculated) ))
head -c "$urandom_bytes" < "$random_data" |
tr -dc "$characters" |
fold -s -w$pw_len |
head -n "$pw_line_count_target"
Using `at` command
A lot of people haven't heard of the at
command, and I just figured I'd post up a little bit about it. I use it as a semi-alarm clock type reminder.
Structure of command the way I use it:
echo "notify-send -u critical -t 0 'YOUR URGENT MESSAGE'" | at "2pm Jun 18"
I actually wrote a tiny function so that I don't have to remember the -u critical -t 0
part. That is to keep the notification box from timing out. Now tomorrow (June 18th) at 2pm, a message box will pop up with the text "YOUR URGENT MESSAGE".
There are options for running commands (like cron, but you don't have to edit, then delete your edit after running). It is great if you don't want to mess with cron, or another utility for a quick reminder.
My quick little function looks like this:
notify_me ()
{
if [[ $# -ne 2 ]]; then
echo 'Usage: notify_me "message" time/date' 1>&2;
echo ' make sure to enclose message in quotes' 1>&2;
echo " also enclose date if it's more than just a time" 1>&2;
return;
fi;
echo "notify-send -u critical -t 0 '$1'" | at "$2"
}
So say I have to remind myself to call the wife when the work day is over. I'll do something like:
notify_me "Check with the ol' ball and chain" "4:45pm"
I'm sure if you wanted to, you could make a very quick zenity
(or whatever you like) gui for it, if that's the way you roll. Now I'll get a nice little pop-up 15 minutes before I check out. Tiny little things like this are why I enjoy the command line so much.
For more uses, check out the man page, or the tldr. It's not complicated and I find it useful.
GitHub - ssledz/bash-fun: Functional programming in bash
https://github.com/ssledz/bash-fun
Functional programming in bash. Contribute to ssledz/bash-fun development by creating an account on GitHub.
Extraction of wiki.bash-hackers.org from the Wayback Machine
GitHub - rawiriblundell/wiki.bash-hackers.org: Extraction of wiki.bash-hackers.org from the Wayback Machine
https://github.com/rawiriblundell/wiki.bash-hackers.org
Extraction of wiki.bash-hackers.org from the Wayback Machine - GitHub - rawiriblundell/wiki.bash-hackers.org: Extraction of wiki.bash-hackers.org from the Wayback Machine