在命令行(Terminal)中自动生成二维码

发表于 更新于 分类于 阅读次数：

shell小白，此脚本实现的功能是在命令行中自动生成输入的文字/链接的二维码

相关资源

实现思路

  1. 检测brew环境，若没有，则安装
  2. 检测qrencode环境，活没有，则安装
  3. 使用qrencode生成二维码，并打印
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
#!/usr/bin/env bash

#若没有brew环境，安装brew
if which brew > /dev/null ; then
    echo "brew has been installed."
else
    echo "brew not installed, install brew first."
    ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
fi

#若没有qrencode库，安装qrencode
if which qrencode > /dev/null ; then
    echo "qrencode has been installed."
else
    echo "qrencode not installed, install brew first"
    brew install qrencode
fi

#处理参数，获取要生成二维码的信息
if [ $# == 0 ]; then
    read -p "Enter message here: " message
elif [[ $1 == "help" ]] || [[ $1 == "--help" ]]; then
    echo "A tool for generating qr code."
    echo "Example usage:"
    echo "  qrcode \"http://www.163.com\""
    echo "  qrcode \"n 55!W\""
    echo "Further help:"
    echo "  qrcode help"
    echo "  qrcode --help"
    exit
elif [ $1 ]; then
    message=$1
fi

#打印二维码
echo $message | qrencode -o - -t UTF8

运行效果