slow-is-fast

```shell
for i in $( seq 1 90 ); do 
 	git commit -m `printf add ch$i` `printf ch$i.md`
 	gp
 done

```

slow-is-fast

for i in $( seq 1 90 ); do 
  touch `printf  "ch%02d.md" "$i"`;
done

slow-is-fast

gsed -i -e 'G;' ch02.md

gsed means gun sed on Mac.

slow-is-fast

#!/usr/bin/env bash

# This script prints out all of your Redis keys and their size in a human readable format
# Copyright 2013 Brent O'Connor
# License: http://www.apache.org/licenses/LICENSE-2.0

human_size() {
        awk -v sum="$1" ' BEGIN {hum[1024^3]="Gb"; hum[1024^2]="Mb"; hum[1024]="Kb"; for (x=1024^3; x>=1024; x/=1024) { if (sum>=x) { printf "%.2f %s\n",sum/x,hum[x]; break; } } if (sum<1024) print "1kb"; } '
}

slow-is-fast

• install predis/predis

• use Illuminate\Support\Facades\Redis; don't use Redis directly.

slow-is-fast

select * from pg_stat_activity;

slow-is-fast

dotspacemacs-maximized-at-startup t

在 .spacemacs 中修改变量 dotspacemacs-maximized-at-startup 为 t 默认 nil

slow-is-fast

• 开头加上 set -x set -e

#!/bin/bash set -e set -x

• 使用工具检查脚本 shellcheck

slow-is-fast

```shell
php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
php -r "if (hash_file('SHA384', 'composer-setup.php') === '544e09ee996cdf60ece3804abc52599c22b1f40f4323403c44d44fdfdd586475ca9813a858088ffbc1f233e9b180f061') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"
php composer-setup.php --install-dir=/usr/local/bin --filename=composer
php -r "unlink('composer-setup.php');"
```

slow-is-fast

#!/usr/bin/env python
#-*- encoding:utf8 -*-
"""
从磁力搜吧抓取海贼王的磁力链接
"""

import sys

try:
    import requests