Lin Yang darktef

🐳

Hacking

darktef / gist:53db9956a9172377f37ae488d8511809

Created September 23, 2016 03:43

Fish - ffmpeg&lame - convert m4a to mp3

	for f in *.m4a
	set name (string trim --right --chars=.m4a $f)
	echo $name
	ffmpeg -i $f -acodec libmp3lame -b:a 320k $name.mp3
	end

darktef / gist:69dff2055c0614bdf592d3bd04e0e7ac

Last active March 11, 2017 20:54

Fish - youtube-dl - Download playlist in

	youtube-dl -f bestaudio -o 'The_Sounds_of_the_Monterey_Bay/%(playlist_index)s - %(title)s.%(ext)s' 'https://www.youtube.com/watch?v=oBik31cwRbY&list=PLUSRfoOcUe4aw6JiTXbwUET_wdQ1bnyoo'

	## Download playlist in separate folder, audio only

	youtube-dl -f 'bestvideo[ext=mp4]+bestaudio[ext=m4a]/best[ext=mp4]/best' -o '%(playlist_index)s-%(title)s.%(ext)s' 'https://www.youtube.com/playlist?list=PL4BBB74C7D2A1049C'

	## Download playlist with best quality

darktef / gist:dc39f10d2b99d4ba774d81cb0368bb3f

Created September 23, 2016 04:14

Fish - ffmpeg - Convert webm to mp3

	for i in (find . -type f -iname "*.webm")
	set int (string trim -l -c=./ $i)
	set name (string trim -r -c=.webm $int)
	echo $name
	ffmpeg -i $i -vn -acodec libmp3lame -q:a 2 $name.mp3
	end

darktef / gist:21ff4890089631db91649ea1c24a7ed1

Created November 7, 2016 04:56

Fish - move files in parent folder to child folder

	find . -maxdepth 1 -type f -exec mv '{}' ./wk1/ \;
	// it seems like no -t available in fish Shell and Mac...

darktef / gist:5aa7a9261e15470eb0cf83693a06ee93

Last active December 31, 2016 04:02

Fish - fetch all git branches

	for remote in (git branch -r \| grep -v HEAD)
	// remove the origin/
	set bran (string replace -r 'origin\/' '' $remote)
	// remove the left trailing white spaces
	set br (string trim -l $bran)
	set r (string trim -l $remote)
	// create branch local to track the origin/branch
	git branch --track $br $r
	end

darktef / animate_display.css

Created February 19, 2017 02:00

	/* ref: http://stackoverflow.com/questions/3331353/transitions-on-the-display-property */

	div > ul {
	visibility: hidden;
	opacity: 0;
	transition: visibility 0s, opacity 0.5s linear;
	}
	div:hover > ul {
	visibility: visible;
	opacity: 1;

darktef / gist:4f0fae5edf41764c7eff34ff5e71c47f

Created April 16, 2018 03:05

Convert pdf to image with ImageMagick

convert -density 300 bujo_MondayStart_Duplex_marriedtotheearth.pdf bullet_journal.png 

darktef / gist:d985a0452d774aa6702f3bae43e5ccab

Created August 8, 2018 17:08

Bash - Open multiple files from previous git log history

mvim -p $(git log --pretty="" --name-only -1 | tr -s '\n' ' ')

darktef / commit_history.rb

Last active September 20, 2018 20:23

Ruby - Grab the commit history of all related files

	results = []

	file_names = `find . -print \| grep '.referral.'`.split("\n");nil
	file_names.each do \|name\|
	output = `git log --follow --pretty=format:'{"commit": "%H","author": "%aN <%aE>","date": "%ad","message": "%f"},' -- #{name}`
	results.concat(JSON.parse('[' + output.gsub("\n", '')[0..-2] + ']'))
	end

	mapping = {}
	results.each do \|res\|

darktef / flatten_directory.sh

Created November 24, 2018 16:17

	find . -type d -not -empty -exec echo mv \{\}/README.md \{\}.md \;
	# This is to preview the command first with echo
	find . -type d -empty -print # to show the folder to be deleted
	find . -type d -empty -delete # to delete the empty folder
	# https://unix.stackexchange.com/questions/46322/how-can-i-recursively-delete-empty-directories-in-my-home-directory
	mv myfolder/* .
	# move the folder content one level up