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#!/bin/bash

# reference: https://stackoverflow.com/questions/4774054/reliable-way-for-a-bash-script-to-get-the-full-path-to-itself

currentDir=$(
  cd $(dirname "$0")
  pwd
)

echo -n "current "

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# reference https://stackoverflow.com/questions/6481005/how-to-obtain-the-number-of-cpus-cores-in-linux-from-the-command-line
cat /proc/cpuinfo | awk '/^processor/{print $3}' | wc -l

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Python3 PyMySQL Raise Incorrect String Value When Inserting UTF-8 Data

Description

Python3 + PyMySQL 的环境, 如果在数据库中写入中文, 会出现报错:

pymysql.err.InternalError: (1366, "Incorrect string value: '\\xE6\\xB5\\x8B\\xE8\\xAF\\x95' for column 'description' at row 1")

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Cheat Sheet of Kubernetes

• ConfigMap
• Environment Variable
• Kubernetes Cheat Sheet (official)

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Cheat Sheet of MySQL

• Connection

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# listen ipv6 and ipv4 at the same time by gunicorn
# http://docs.gunicorn.org/en/stable/settings.html#bind
gunicorn -b 0.0.0.0:5000 -b '[::1]:5000' test:app

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Tricks in *NIX

• cpu
• network
• Transfer file with ssh
• Edit File Without Opening
• IPV6

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// if you want to kill all processes match "pname"
ps aux | grep pname | grep -v grep | awk '{print $2}' | xargs kill

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Set SSH command

git config --global core.sshCommand 'ssh -o ProxyCommand="nc -x 127.0.0.1:6489 %h %p"'

Unset

--unset 用法见文档, 未测试: https://git-scm.com/docs/git-config#git-config---unset

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@mixin multiple-lines ($count) {
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: $count;
  /* autoprefixer: off */
  -webkit-box-orient: vertical;
  /* autoprefixer: on */
}