本篇内容主要讲解“Betty怎么安装使用”，感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷，实用性强。下面就让小编来带大家学习“Betty怎么安装使用”吧!
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Betty的安装非常简单直接。首先确认你已经安装了下面这些依赖包[LCTT译注，需要安装至少Ruby1.9以上版本]。
sudo apt-get install git curl ruby
yum install git curl ruby
现在用git工具把Betty库clone到你自定义的任何路径。这里我克隆到我的home目录，例如 /home/sk/.
git clone https://github.com/pickhardt/betty
添加betty的别名到你的bashrc配置文件。
sudo nano ~/.bashrc
将下列行添加到文件的末尾：
alias betty="/home/sk/betty/main.rb"
确保你已经正确地设置好了betty的路径。
好了，现在是时候和betty好好地玩耍了。
你应该在英语短语之前加上单词“betty”[LCTT译注，你自然可以用你的小甜心的名字来替换这个不是知道是谁的Betty :>]。你也许已经知道，如果我们想知道在系统中我们的用户名，应该运行下面的命令：
whoami
输出是这样的：
sk
如你所见，我当前登录的用户名是 sk. 现在我也可以通过下面的betty命令获取相同的结果。
betty whats my username
输出是这样的：
Betty: Running whoami sk
真的好酷，是不是？Betty理解我输入的“whats my username”短语，然后运行“whoami”命令，***输出结果。
让我们也来看其他命令。
如果你的输入不够准确，Betty也能以多种方式回应你。例如，我们运行下面的命令：
betty whats my name
Betty不确定她应该查找系统用户名还是用户全名。这种情况下，她会询问你多个问题来找到准确的结果。如你下面所见，Betty问我想要运行哪一条命令（whoami 还是 finger $(whoami) | sed 's/.://;q')[LCTT译注，需要你的系统已经安装finger]。我只想知道我的用户名，所以我选择数字1。
Betty: Okay, I have multiple ways to respond. Betty: Enter the number of the command you want me to run, or N (no) if you don't want me to run any. [1] whoami Gets your system username. [2] finger $(whoami) | sed 's/.*: *//;q' Gets your full name. 1 Betty: Running whoami sk
如果你想要压缩一个文件或者文件夹，用下面的命令。例如，我想压缩我home目录下的“test”文件夹。
betty compress test/ test.tar.gz
输出是这样的：
Betty: Running tar -czvf test.tar.gz test/ test/ test/home/ test/home/sk/ test/home/sk/test/ test/home/sk/test/sample
类似的，我们可以用下面的命令来解压缩一个归档文件。
betty uncompress test.tar.gz
输出是这样的：
Betty: Running mkdir test &&tar -zxvf test.tar.gz -C test test/ test/home/ test/home/sk/ test/home/sk/test/ test/home/sk/test/sample
Betty工具有一些命令格式。如果你输入“what is my user name”而不是“whats my username”，它是不能识别的。所以，你只能输入Betty支持的英语短语。
下面给出一个Betty支持的完整的命令行列表。
Count: betty how many words are in this directory betty how many characters are in myfile.py betty count lines in this folder (Note that there's many ways to say more or less the same thing.) Config: betty change your name to Joe betty speak to me betty stop speaking to me Datetime: betty what time is it betty what is todays date betty what month is it betty whats today Find: betty find me all files that contain california Internet: betty download http://www.mysite.com/something.tar.gz to something.tar.gz betty uncompress something.tar.gz betty unarchive something.tar.gz to somedir (You can use unzip, unarchive, untar, uncompress, and expand interchangeably.) betty compress /path/to/dir iTunes: betty mute itunes betty unmute itunes betty pause the music betty resume itunes betty stop my music betty next song betty prev track betty what song is playing (Note that the words song, track, music, etc. are interchangeable) Fun: betty go crazy betty whats the meaning of life ...and more that are left for you to discover! Map: betty show me a map of mountain view Meta: betty what version are you (or just betty version) betty whats your github again Permissions: betty give me permission to this directory betty give anotheruser ownership of myfile.txt Process: betty show me all processes by root containing grep betty show me all my processes containing netbio Sizes: betty show size for myfile.txt Spotify: betty play spotify betty pause spotify betty next spotify betty previous spotify User: betty whats my username betty whats my real name betty whats my ip address betty who else is logged in betty whats my version of ruby Web queries: betty turn web on betty please tell me what is the weather like in London
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