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cmd | 命令行

  • repeat last command argument
    !$ last argument
    !* all argument
  • notify cmd line this is the end of options
    --
  • readline
    Ctrl-a, Ctrl-e, Ctrl-u, Ctrl-k
    Ctrl-w delete a word backwards
    Ctrl-x Ctrl-e actually editing the command line
    Esc-f/Esc-b
  • get public ip
    curl http://ip4.me 2>/dev/null | sed -e 's#<[^>]*>##g' | grep '^[0-9]'
  • http request and response using curl
    curl -iv ${url}
  • lock tty
    clear && vlock -c
  • real path
    pwd -P
  • grep and highlight finds in full file
    grep --color -E "test|$" yourfile
  • awk check characters at certain position
    awk -F '' '$25 == "a"' input >output
  • iptables
    sudo iptables -I INPUT -p tcp --dport 25 -j ACCEPT
    sudo iptables-save
  • mysqld
    repair all the databases
    mysqlcheck -Aor

text process | 文本處理

  • print a line in file
    $ sed -n 4p $file_name
    -n switch turns off default output
    $ sed -n 3,60p $file_name
    $ sed -n -e 3,60p -e 1p $file_name

vim | basic vim

  • directory and files
    - open directory listing in vim
    :e.
    - open file in this directory listing
    o
  • fix sudo
    :w !sudo tee %
  • read outline from cmd
    :r!date
  • read content from another file
    :read other_file
    :r other_file
  • edit and read the template
    :e newfile.cpp | r template.cpp

app | 應用

  • chrome
    - keybinding to next tab in chrome: Ctrl-Tab
    - keybinding to next window in chrome: Cmd-`

  • curl
    - debug it: curl -vv https://s3.amazonaws.com/

  • tmux
    - [un]synchronize: setw synchronize-panes

  • tty

  • mac osx
    - screenshot screen capture ⌘ ⇧ 3
    - networksetup
    -listallnetworkservices # 列表所有的interface/setup
    # 使用pacfile # need to disable "send all traffic over VPN connection" in VPN setup

  • combine two images (merge)
    $> convert +append a.png b.png c.png
    $> montage -geometry 100% left.jpg right.jpg merged.jpg

git | just git

  • git checkout and track remote branch | git 檢出遠程的分支並track
    % git checkout -t origin/remote_feature
  • git remove deleted files | git rm 刪除物理刪除的文件
    % git status |grep deleted |awk '{print $3}' | xargs git rm
  • git setup upstream default (to origin/master) | git 設置缺省上行分支到 origin/master
    % git config branch.master.remote origin
    % git config branch.master.merge refs/heads/master
  • git push to current tracking branch (instead of default all branches) | git push 推到目前的trakcing分支(而不是所有分支)
    % git config --global push.default tracking
  • git find mod between local and remote | git 檢查本地和遠程mod
    % git fetch
    % git log ..@{u} --stat
    % git log @{u}..

tools | 工具箱

ideas | 思路

  • http stack
    http request > web server > router > data handling > response
  • python webapp stack
    django + flask + nginx +uWSGI

spartan life hacks (which i dont want to forget)

  • mental
    mental dicipline
    modest and sincere
    dont judge 不下結論
  • physical
    balance/cadence/flex
    @sleeping crunch/lay-biking/ab round/ab breathe
    @standing backkick/ab breathe 腹式呼吸
    @running correct overstriding
    @eating water/vegie

links | 總是有用的連接

  • [unix toolbox][link_toolbox]
  • [ex:coloer picking][link_colorlover]
  • [12 factor for devop][link_12fac]
  • [pep][link_pep]
  • [rfc][link_rfc] or [ietf version of rfc][link_rfc2]
  • [my own devop requirements.txt][link_pipbasic]

go [home][link_home] lets go back back to [home][link_home]
[link_colorlover]: http://www.colourlovers.com/ "Title: colorlover"
[link_12fac]: http://www.12factor.net/ "Title: 12 factor"
[link_pep]: http://www.python.org/dev/peps/ "Title: python PEPs"
[link_rfc]: http://www.faqs.org/rfcs/ "Title: RFC"
[link_rfc2]: http://tools.ietf.org/html/ "Title: RFC2"