lengerfulluse

#!/usr/bin/python

from __future__ import print_function
import re

def url_mapping():
  '''Mapping jekyll like http://t.hengwei.me/post/title/ ---> http://t.hengwei.me/post/title.html'''
  
  with open("lengerfulluse-old.csv", 'r') as fo, open("lengerfulluse-url-mapping.csv", 'w') as fw:
    for line in fo:

lengerfulluse

# change pem file mode
chmod 400 /path/my-key-pair.pem

# use ssh to login ec2 instance.
ssh -i /path/my-key-pair.pem ec2-user@ec2-198-51-100-1.compute-1.amazonaws.com

lengerfulluse

#!/bin/bash

function output_help {
        echo "usage: git-revert-single-file <sha1> <file>"
    }

sha1=$1
file=$2

if [[ $sha1 ]]; then

lengerfulluse

1. count the occurence, just like uniq statment.

awk '{ tot[$0]++ } END { for (i in tot) printf("%s\t%s\n", i,tot[i]) }'

2. find multiple occurance of string in one lines

sed 's/\[http-/\n&/g; s/userid":/\n&/g;s/recmid":"/\n&/g;s/[^\n]*\nuserid":\([[:digit:]]*\)[^\n]*/\1 /g;s/.$//'

3. basic shell hashmap usage:

http://www.artificialworlds.net/blog/2012/10/17/bash-associative-array-examples/

lengerfulluse

#/bin/bash
loop=0
sum=0
str=`ls`
arr=($str)
while [ $loop -lt 100 ]; do
    res=`wc -l ${arr[$loop]}`
    line=`echo $res | cut -d' ' -f1`
    echo $line
    sum=$(($sum+$line))

lengerfulluse

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>cn.mynux.data.statistics</groupId>
    <artifactId>feed-data-analysis</artifactId>
    <packaging>jar</packaging>
    <version>1.0-SNAPSHOT</version>

lengerfulluse

# remove end ^M character
perl -pe 's{\d+\.\d+%}{$&/100}eg'

# parse csv file, convert to tsv file.
perl -MText::ParseWords -lne'
 print join "\t", map "$_",
  parse_line(",",0, $_);  # if you want to keep the double-quotes of the field, just use put '1' instead of 0 as the second parameter.
   ' infile.csv >infile.tsv

lengerfulluse

http://www.liuxiao.org/2017/02/tensorflow-mac-os-%E4%B8%8A-tensorflow-%E5%AE%89%E8%A3%85%EF%BC%88%E6%94%AF%E6%8C%81-cuda%EF%BC%89/

lengerfulluse

https://www.digitalocean.com/community/tutorials/how-to-set-up-automatic-deployment-with-git-with-a-vps

1. set remote git repo
2. set local git branch: git remote add tech ssh://hengwei@hengwei.me:~/repos/t.hengwei.me.git
3. git push: git push live master

lengerfulluse

command `sudo easy_install pygments` seems not work for me, use the following command got successfully.

sudo gem install pygments.rb