zlin888

Scrapy Cheatsheet

For test

scrapy shell https://example.com/

Run

scrapy crawl spider_name

Output

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

zlin888

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

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// 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",

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dd1 <- c(21000, 23400, 26800)
dd2 <- c(29002, 10000, 70000)


    
library(viridis)
library(effsize)
library(sm)
library(magicaxis)
library(beanplot)

zlin888

Difference between system call and C

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

zlin888

Ubuntu Cheatsheet

• check disk space: df -H
• transfer file from server to local: scp your_username@remotehost.edu:foobar.txt /local/dir
• local to server: rsync -avz -e 'ssh' foobar.txt your_username@remotehost.edu: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]

zlin888

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

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Git Cheatsheet

Fix gitignore

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/

zlin888

# 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)

zlin888

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。

• Computer architecture ASPLOS, ISCA, MICRO
• Computer networks INFOCOM, SIGCOMM, NSDI
• High-performance computing HPDC, ICS, SC
• Operating systems EuroSys, OSDI/SOSP, USENIX ATC
• Programming languages PLDI, POPL