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85 lines
3.5 KiB
Markdown
Linux/Unix 桌面趣事：终端上的圣诞树
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给你的Linux或Unix控制台创造一棵圣诞树玩玩吧。在此之前，需要先安装一个Perl模块，命名为Acme::POE::Tree。这是一棵很喜庆的圣诞树，我已经在Linux、OSX和类Unix系统上验证过了。
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### 安装 Acme::POE::Tree ###
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安装perl模块最简单的办法就是使用CPAN（Perl综合典藏网（Comprehensive Perl Archive Network））。打开终端，把下面的指令敲进去便可安装Acme::POE::Tree。
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## 以root身份运行 ##
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perl -MCPAN -e 'install Acme::POE::Tree'
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**示例输出：**
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Installing /home/vivek/perl5/man/man3/POE::NFA.3pm
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Installing /home/vivek/perl5/man/man3/POE::Kernel.3pm
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Installing /home/vivek/perl5/man/man3/POE::Loop.3pm
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Installing /home/vivek/perl5/man/man3/POE::Resource.3pm
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Installing /home/vivek/perl5/man/man3/POE::Filter::Map.3pm
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Installing /home/vivek/perl5/man/man3/POE::Resource::SIDs.3pm
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Installing /home/vivek/perl5/man/man3/POE::Loop::IO_Poll.3pm
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Installing /home/vivek/perl5/man/man3/POE::Pipe::TwoWay.3pm
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Appending installation info to /home/vivek/perl5/lib/perl5/x86_64-linux-gnu-thread-multi/perllocal.pod
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RCAPUTO/POE-1.367.tar.gz
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/usr/bin/make install -- OK
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RCAPUTO/Acme-POE-Tree-1.022.tar.gz
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Has already been unwrapped into directory /home/vivek/.cpan/build/Acme-POE-Tree-1.022-uhlZUz
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RCAPUTO/Acme-POE-Tree-1.022.tar.gz
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Has already been prepared
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Running make for R/RC/RCAPUTO/Acme-POE-Tree-1.022.tar.gz
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cp lib/Acme/POE/Tree.pm blib/lib/Acme/POE/Tree.pm
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Manifying 1 pod document
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RCAPUTO/Acme-POE-Tree-1.022.tar.gz
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/usr/bin/make -- OK
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Running make test
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PERL_DL_NONLAZY=1 "/usr/bin/perl" "-MExtUtils::Command::MM" "-MTest::Harness" "-e" "undef *Test::Harness::Switches; test_harness(0, 'blib/lib', 'blib/arch')" t/*.t
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t/01_basic.t .. ok
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All tests successful.
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Files=1, Tests=2, 6 wallclock secs ( 0.09 usr 0.03 sys + 0.53 cusr 0.06 csys = 0.71 CPU)
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Result: PASS
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RCAPUTO/Acme-POE-Tree-1.022.tar.gz
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Tests succeeded but one dependency not OK (Curses)
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RCAPUTO/Acme-POE-Tree-1.022.tar.gz
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[dependencies] -- NA
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### 在Shell中显示圣诞树 ###
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只需要在终端上运行以下命令：
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perl -MAcme::POE::Tree -e 'Acme::POE::Tree->new()->run()'
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**示例输出**
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Gif 01: 一棵用Perl写的喜庆圣诞树
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### 树的定制 ###
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以下是我的脚本文件tree.pl的内容：
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#!/usr/bin/perl
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use Acme::POE::Tree;
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my $tree = Acme::POE::Tree->new(
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{
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star_delay => 1.5, # shimmer star every 1.5 sec
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light_delay => 2, # twinkle lights every 2 sec
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run_for => 10, # automatically exit after 10 sec
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}
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);
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$tree->run();
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这样就可以通过修改star_delay、run_for和light_delay参数的值来自定义你的树了。一棵好玩的终端圣诞树就此诞生。
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--------------------------------------------------------------------------------
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via: http://www.cyberciti.biz/open-source/command-line-hacks/linux-unix-desktop-fun-christmas-tree-for-your-terminal/
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作者：Vivek Gite
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译者：[soooogreen](https://github.com/soooogreen)
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校对：[wxy](https://github.com/wxy)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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