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import fcntl
import time
import sys


lock = file('singleapp.lock', "w+")
try:
    fcntl.lockf(lock, fcntl.LOCK_EX|fcntl.LOCK_NB)
except Exception, e:
    print "kill me before start again"

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tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

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Intercepts HTTPs Traffic with Python & mitmproxy

Introduction

Modern applications usually make use of back-end API servers to provide their services. With a non-transparent HTTPs proxy, which intercepts the communication between clients and servers (aka the man-in-the-middle scheme), you can easily manipulate both API requests and responses.

This manual helps you create your own proxy with Python and mitmproxy/libmproxy. Mitmproxy ships with both a standalone command-line tool (mitmproxy) and a Python library (libmproxy).

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#!/usr/bin/env bash

# This script prints out all of your Redis keys and their size in a human readable format
# Copyright 2013 Brent O'Connor
# License: http://www.apache.org/licenses/LICENSE-2.0

human_size() {
        awk -v sum="$1" ' BEGIN {hum[1024^3]="Gb"; hum[1024^2]="Mb"; hum[1024]="Kb"; for (x=1024^3; x>=1024; x/=1024) { if (sum>=x) { printf "%.2f %s\n",sum/x,hum[x]; break; } } if (sum<1024) print "1kb"; } '
}

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Thread-9jnxc
looping.rb:17:in `block (2 levels) in <main>'
    \_ looping.rb:15:in `each'
    \_ looping.rb:15:in `block in <main>'
    \_ looping.rb:22:in `call'
    \_ looping.rb:22:in `condition'
    \_ looping.rb:26:in `looping'
    \_ looping.rb:31:in `<main>'

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function rc {
  release_branch=`git branch | grep release/ | sort -r | head -n 1 | sed -e s/'* '// | awk '{print $1}'`
  diff_branchs="master..$release_branch"
  echo -e "\e[34;5;204mRelease branch: $release_branch, diff: $diff_branchs, commits: \e[0m"
  text=`git log $diff_branchs --pretty=format:'- %s by @%an' --reverse | grep -v Merge | sort | uniq`
  echo $text
}

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SPC s c remove highlight

**** Files manipulations key bindings
Files manipulation commands (start with ~f~):

| Key Binding | Description                                                    |
|-------------+----------------------------------------------------------------|
| ~SPC f c~   | copy current file to a different location                      |
| ~SPC f C d~ | convert file from unix to dos encoding                         |
| ~SPC f C u~ | convert file from dos to unix encoding                         |

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Useful Spacemacs commands

• SPC q q - quit
• SPC w / - split window vertically
• SPC w - - split window horizontally
• SPC 1 - switch to window 1
• SPC 2 - switch to window 2
• SPC w c - delete current window
• SPC TAB - switch to previous buffer
• SPC b b - switch buffers

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{
  "clusters": [
    {
      "account": "g_k8s_dev0",
      "application": "treasureship",
      "capacity": {
        "desired": 1,
        "max": 3,
        "min": 2
      },

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I am passionate about Ruby, but its execution time compared to other languages is extremely high, especially when we want to use more complex algorithms. In general, data structures in interpreted languages become incredibly slow compared to compiled languages. Some algorithms such as ´n-body´ and ´fannkuch-redux´ can be up to 30 times slower in Ruby than Go. This is one of the reasons I was interested in embedding Go code in a Ruby environment.

For those who do not know how shared libraries operate, they work in a similar way as DLLs in Windows. However, they have a native code with a direct interface to the C compiler.

Note Windows uses the DLL system, and in this case, this does not necessarily have to be in native code.

One example is DLLs written in C#, which runs on a virtual machine. Because I do not use windows, I ended up not testing if it is poss