defp

;;contains-bt
;;二叉搜索树
(define (contains-bt num bt)
  (cond 
    [(empty? bt) false]
    [else (cond 
           [(= (node-ssn bt) num) true]
           [(contains-bt num (node-left bt))true]
           [(contains-bt num (node-right bt))true]
           [else false]

defp

     #/bin/bash 
     ls *.JPG >file.txt 
     for i in $(cat file.txt) 
     do  
         name=$(echo $i.jpg) 
         mv $i $name 
     done 
                                                                                                                                                             

defp

##nginx.conf
user group;
worker_processes 4;
pid /var/run/nginx.pid;

events {
        worker_connections 768;
        # multi_accept on;
}

defp

#include <unistd.h>
#include <sys/types.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>

#define MAX_DATA_LEN 256
#define DELAY_TIME 1

int main(){

defp

*.pyc
*~
*.[oa]
*.db
*.*~
# See http://help.github.com/ignore-files/ for more about ignoring files.
#
# If you find yourself ignoring temporary files generated by your text editor
# or operating system, you probably want to add a global ignore instead:
#   git config --global core.excludesfile ~/.gitignore_global

defp

{ "keys": ["j","j"], "command": "exit_insert_mode",
        "context":
        [
            { "key": "setting.command_mode", "operand": false },
            { "key": "setting.is_widget", "operand": false }
        ]
    },

    { "keys": ["j","j"], "command": "hide_auto_complete", "context":
        [

defp

准备工作

byobu 基于screen或tmux的终端工作

sudo apt-get install byobu curl

在终端启动

byobu # F6 可以让进程在后台运行`

defp

socket位置

mysql_config --socket

输出

/var/run/mysqld/mysqld.sock

mysql备份数据库

defp

SSH_PORT 	  = 80
SSH_USER      = lidashuang@210.44.176.208
SSH_USERPATH  = ~/scrapbook
DIR = ~/scrapbook

rsync:
	rsync -avze 'ssh -p $(SSH_PORT)' --delete $(DIR) $(SSH_USER):$(SSH_USERPATH)

defp

(fn [seq]
  (map-indexed (fn [id val] (vector val id)) seq))