Tras2

#!/bin/bash

# A bash script to update a Cloudflare DNS A record with the external IP of the source machine
# Used to provide DDNS service for my home
# Needs the DNS record pre-creating on Cloudflare

# Proxy - uncomment and provide details if using a proxy
#export https_proxy=http://<proxyuser>:<proxypassword>@<proxyip>:<proxyport>

# Cloudflare zone is the zone which holds the record

michaellihs

Upload GPS Tracks to Strava from your Command Line

This short tutorial describes how to upload GPS tracks to Strava using your command line interface / shell. It requires no special tools or any 3rd party code.

1. Generate an API Key

Run the following steps with your user logged in to Strava in your browser!

Strava uses OAuth to authenticate against 3rd party applications. In order to authenticate to your Strava account from your command line, you first have to generate an API key. Therefore go to this page https://strava.github.io/api/v3/oauth/ and create a new API. The settings are as follows:

fotock

# 生成 dhparam.pem 文件, 在命令行执行任一方法:

# 方法1: 很慢
openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048

# 方法2: 较快
# 与方法1无明显区别. 2048位也足够用, 4096更强
openssl dhparam -dsaparam -out /etc/nginx/ssl/dhparam.pem 4096

johnrc

#!/bin/sh

curl -O http://repo.continuum.io/archive/Anaconda3-4.0.0-Linux-x86_64.sh
chmod u+x Anaconda3-4.0.0-Linux-x86_64.sh
./Anaconda3-4.0.0-Linux-x86_64.sh -b -p /opt/anaconda3
export PATH=/opt/anaconda3/bin:$PATH
curl --silent --location https://rpm.nodesource.com/setup_4.x | bash -
yum install nodejs -y
npm install -g configurable-http-proxy
pip install jupyterhub

benkulbertis

#!/bin/bash

# CHANGE THESE
auth_email="user@example.com"
auth_key="c2547eb745079dac9320b638f5e225cf483cc5cfdda41" # found in cloudflare account settings
zone_name="example.com"
record_name="www.example.com"

# MAYBE CHANGE THESE
ip=$(curl -s http://ipv4.icanhazip.com)

tuxfight3r

Bash Shortcuts

Moving

command	description
ctrl + a	Goto BEGINNING of command line

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

parano

表格受密码保护时，我们修改数据Excel弹出“您试图更改的单元格或图表受保护，因而是只读的。
若要修改受保护单元格或图表，请先使用‘撤消工作表保护’命令(在‘审阅’选项卡的‘更改’组中)来取消保护。
可能会提示输入密码。这时候我们可以用VBA宏代码破解法来破解表格保护密码：
  第一步：打开该文件，先解除默认的“宏禁用”状态，方法是点击工具栏下的“选项”状态按钮，
         打开“Microsoft Office安全选项”窗口，选择其中的“启用此内容”，“确定”
         再切换到“视图”选项卡，点击“宏”→“录制宏”，出现“录制新宏”窗口，在“宏名”定义一个名称为：  
         PasswordBreaker，点击“确定”退出；
  第二步：再点击“宏”→“查看宏”，选择“宏名”下的“PasswordBreaker”并点击“编辑”，
         打开“Microsoft Visual Basic”编辑器，用如下内容替换右侧窗口中的所有代码：