wallace11

Tricks

Command	Description
`dd if=/dev/<sdx> bs=<bs> count=1 \| hexdump -C` `hexdump -C -n <bytes> <dev>`	Print hexdump of a drive

Directory indexing

Set hashed b-trees to speed up lookup for large dirs: tune2fs -O dir_index /dev/<SDX>
Optimize directories (reindexing/sorting and compressing): e2fsck -D /dev/<SDX>

Low Cython version

Makefile:2019: recipe for target 'src/cython/vapoursynth.c' failed
make: *** [src/cython/vapoursynth.c] Error 1

recipe for target 'src/cython/vapoursynth.c' failed

Probably due to Cython version 0.25.2 (Debian stretch default)

Arch

Fix alsa 1.2.x:

pacman -U https://archive.archlinux.org/packages/a/alsa-lib/alsa-lib-1.1.9-2-x86_64.pkg.tar.xz
pacman -U https://archive.archlinux.org/packages/a/alsa-utils/alsa-utils-1.1.9-1-x86_64.pkg.tar.xz

Old

https://github.com/wrzlbrmft/arch-odroid

Extract bluray audio

ffmpeg -i VIDEO.m2ts -map 0:<stream> -acodec <pcm_s24le|libmp3lame> audio.<wav|mp3>

Description	Command	Reference
Store credentials	`git config credential.helper store`
Allow no comment on commit	`git config --global alias.nccommit 'commit -a --allow-empty-message -m ""'`	Source
Undo a commit	`git reset HEAD~`
List remotes	`git remote -v`
Change remote	`git remote set-url origin <URL>`	Reference
Append to last commit	`git commit --amend`

Fresh start

Force display errors

error_reporting(E_ALL);
ini_set('display_errors', 1);

Disable caching in php.ini

opcache.enable=0

sudo apt-get remove openssh-server && sudo apt-get install openssh-server

/etc/ssh/sshd_config:

Change - PermitRootLogin no
Add - AllowUsers yourusername
Change - PasswordAuthentication yes
Add - UsePrivilegeSeparation no
Change - ListenAddress 0.0.0.0

Change - Port 2200

	var check = OBJECT.find(function(obj) {
	return obj.id == id;
	});