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// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

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>> sudo python3.3 setup.py install --optimize=1                                                                                                                            [11:10:49](master|✔)
running install
running build
running build_py
running build_scripts
running install_lib
creating /usr/local/lib/python3.3/site-packages/ranger
copying build/lib/ranger/__init__.py -> /usr/local/lib/python3.3/site-packages/ranger
creating /usr/local/lib/python3.3/site-packages/ranger/config
copying build/lib/ranger/config/rc.conf -> /usr/local/lib/python3.3/site-packages/ranger/config

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(defun set-frame-size-according-to-resolution ()
  (interactive)
  (if window-system
	  (progn
		(setq width-chars (/ (/ (x-display-pixel-width) (frame-char-width)) 2))
		(setq height-lines (- (/ (x-display-pixel-height) (frame-char-height)) 3))
		(setq default-frame-alist
			  `((top . 0) (left . 0)
				(width . ,width-chars)
			(height . ,height-lines)))

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#!/bin/bash

usage()
{
        echo "bit operations of two numbers"
        echo
        echo "Usage: $(basename $0) NUM1 OPS NUM2 [d]"
        echo "OPS: a(&, and), o(|, or), x(^, xor), l(<<, left), r(>>, right)"
        echo "d means result will be dec, default is hex"
        exit

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https://raw.githubusercontent.com/gfwlist/gfwlist/master/gfwlist.txt

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find the files containing the obsolete: 
such as assoc:
find ~/.emacs.d/ -name "*.el" -exec grep -H "(require 'assoc)" {} \;


# for the differences of cscope ctags, etags, global(gtags, ggtags..)...:
# https://github.com/OpenGrok/OpenGrok/wiki/Comparison-with-Similar-Tools

# etags for small c;cscope for big project

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <signal.h>             /* for SIG_ERR */
#include <stddef.h>             /* for offsetof */
#include <termios.h>
#include <math.h>

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Source:
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp

png:
https://screenshotscdn.firefoxusercontent.com/images/5933b2a1-b14e-4bf9-9790-2259060f006f.png

Other source:
https://regexr.com/

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;; align-regexp with space instead tab
(defadvice align-regexp (around align-regexp-with-spaces activate)
  (let ((indent-tabs-mode nil))
    ad-do-it))
(defalias 'ar #'align-regexp)
(defadvice align (around align-with-spaces activate)
  (let ((indent-tabs-mode nil))
    ad-do-it))
(defun align-c-comments (beginning end)
"Align instances of // or /* */ within marked region."

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function gitco -d 'git checkout -- for multiple files at once'
    # when you copy/paste using mouse, the strings you pasted are not seprated by space ACTUALLY, using ','
    set -l files (echo $argv | tr ',' '\n')
    for i in $files
        echo 'git checkout -- for file' $i
        git checkout -- $i
    end
end
function gita -d 'git add for multiple files at once'
    set -l files (echo $argv | tr ',' '\n')