zlin888 zlin888

Difference between system call and C

https://stackoverflow.com/questions/17219898/what-is-the-difference-between-linux-kernel-api-system-calls-system-inter

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

git rm -r --cached .
git add .
git commit -m ".gitignore fix"

reference: http://www.codeblocq.com/2016/01/Untrack-files-already-added-to-git-repository-based-on-gitignore/

scrapy shell https://example.com/

scrapy crawl spider_name

scrapy crawl dapps -o data/07-07-dapps.csv
scrapy crawl dapps -t csv -o - >"data/dapp/$DATE-dapp.csv"

check disk space: df -H
transfer file from server to local: scp [email protected]:foobar.txt /local/dir
local to server: rsync -avz -e 'ssh' foobar.txt [email protected]:somewhere
find file and remove: find . -maxdepth 1 -regex './[a-z0-9]*' | xargs rm -rf
find the folder find . -type f
-maxdepth 1 means non-recursive
xargs is the command that "converts" its standard input into arguments of another program, or, as they more accurately put it on the man page\
count word, line: wc -l -w [file]

作者：硕鼠酱链接：https://www.zhihu.com/question/33977252/answer/157448123 来源：知乎著作权归作者所有。商业转载请联系作者获得授权，非商业转载请注明出处。

	// Place your key bindings in this file to override the defaultsauto[]
	[
	{
	"key": "right",
	"command": "-extension.vim_right",
	"when": "editorTextFocus && vim.active && !inDebugRepl"
	},
	{
	"key": "shift+backspace",
	"command": "-extension.vim_shift+backspace",

	# Print iterations progress
	def printProgressBar (iteration, total, prefix = '', suffix = '', decimals = 1, length = 100, fill = '█'):
	"""
	Call in a loop to create terminal progress bar
	@params:
	iteration - Required : current iteration (Int)
	total - Required : total iterations (Int)
	prefix - Optional : prefix string (Str)
	suffix - Optional : suffix string (Str)
	decimals - Optional : positive number of decimals in percent complete (Int)

	git clone https://github.com/VundleVim/Vundle.vim.git ~/.vim/bundle/Vundle.vim
	vim +PluginInstall +qall