Linux/Unix 桌面趣事：終端上的聖誕樹

給你的Linux或Unix控制台創造一棵聖誕樹玩玩吧。在此之前，需要先安裝一個Perl模塊，命名為Acme::POE::Tree。這是一棵很喜慶的聖誕樹，我已經在Linux、OSX和類Unix系統上驗證過了。

安裝 Acme::POE::Tree

安裝perl模塊最簡單的辦法就是使用CPAN（Perl綜合典藏網（Comprehensive Perl Archive Network））。打開終端，把下面的指令敲進去便可安裝Acme::POE::Tree。

1. ### 以root身份運行 ###
2. perl -MCPAN -e 'install Acme::POE::Tree'

示例輸出：

1. Installing/home/vivek/perl5/man/man3/POE::NFA.3pm
2. Installing/home/vivek/perl5/man/man3/POE::Kernel.3pm
3. Installing/home/vivek/perl5/man/man3/POE::Loop.3pm
4. Installing/home/vivek/perl5/man/man3/POE::Resource.3pm
5. Installing/home/vivek/perl5/man/man3/POE::Filter::Map.3pm
6. Installing/home/vivek/perl5/man/man3/POE::Resource::SIDs.3pm
7. Installing/home/vivek/perl5/man/man3/POE::Loop::IO_Poll.3pm
8. Installing/home/vivek/perl5/man/man3/POE::Pipe::TwoWay.3pm
9. Appending installation info to /home/vivek/perl5/lib/perl5/x86_64-linux-gnu-thread-multi/perllocal.pod
10. RCAPUTO/POE-1.367.tar.gz
11. /usr/bin/make install -- OK
12. RCAPUTO/Acme-POE-Tree-1.022.tar.gz
13. Has already been unwrapped into directory /home/vivek/.cpan/build/Acme-POE-Tree-1.022-uhlZUz
14. RCAPUTO/Acme-POE-Tree-1.022.tar.gz
15. Has already been prepared
16. Runningmakefor R/RC/RCAPUTO/Acme-POE-Tree-1.022.tar.gz
17. cp lib/Acme/POE/Tree.pm blib/lib/Acme/POE/Tree.pm
18. Manifying1 pod document
19. RCAPUTO/Acme-POE-Tree-1.022.tar.gz
20. /usr/bin/make-- OK
21. Runningmaketest
22. 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
23. t/01_basic.t .. ok
24. All tests successful.
25. Files=1, Tests=2, 6 wallclock secs ( 0.09 usr 0.03 sys + 0.53 cusr 0.06 csys = 0.71 CPU)
26. Result: PASS
27. RCAPUTO/Acme-POE-Tree-1.022.tar.gz
28. Tests succeeded but one dependency not OK (Curses)
29. RCAPUTO/Acme-POE-Tree-1.022.tar.gz
30. [dependencies] -- NA

在Shell中顯示聖誕樹

只���要在終端上運行以下命令：

1. perl -MAcme::POE::Tree-e 'Acme::POE::Tree->new()->run()'

示例輸出

Gif 01: An animated christmas tree in Perl

Gif 01: 一棵用Perl寫的喜慶聖誕樹

樹的定制

以下是我的腳本文件tree.pl的內容：

1. #!/usr/bin/perl
2. useAcme::POE::Tree;
3. my $tree =Acme::POE::Tree->new(
4. {
5. star_delay =>1.5,# shimmer star every 1.5 sec
6. light_delay =>2,# twinkle lights every 2 sec
7. run_for =>10,# automatically exit after 10 sec
8. }
9. );
10. $tree->run();

這樣就可以通過修改stardelay、runfor和light_delay參數的值來自定義你的樹了。一棵好玩的終端聖誕樹就此誕生。

via: http://www.cyberciti.biz/open-source/command-line-hacks/linux-unix-desktop-fun-christmas-tree-for-your-terminal/

作者：Vivek Gite 譯者：soooogreen 校對：wxy

本文由 LCTT 原創編譯，Linux中國 榮譽推出