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Linux / Unix Desktop Fun: Christmas Tree For Your Terminal
================================================================================
Let us create Linux or Unix console Christmas tree just for fun and profit. First, you need to install a Perl module called Acme::POE::Tree. It is an animated Christmas tree module. I've tested this on Linux, OS X and Unix-like system.
### Install Acme::POE::Tree ###
The easiest way to install any perl module is to use the cpan (Comprehensive Perl Archive Network). Open the terminal application and type the following command to install Acme::POE::Tree:
## run as root ##
perl -MCPAN -e 'install Acme::POE::Tree'
**Sample outputs:**
Installing /home/vivek/perl5/man/man3/POE::NFA.3pm
Installing /home/vivek/perl5/man/man3/POE::Kernel.3pm
Installing /home/vivek/perl5/man/man3/POE::Loop.3pm
Installing /home/vivek/perl5/man/man3/POE::Resource.3pm
Installing /home/vivek/perl5/man/man3/POE::Filter::Map.3pm
Installing /home/vivek/perl5/man/man3/POE::Resource::SIDs.3pm
Installing /home/vivek/perl5/man/man3/POE::Loop::IO_Poll.3pm
Installing /home/vivek/perl5/man/man3/POE::Pipe::TwoWay.3pm
Appending installation info to /home/vivek/perl5/lib/perl5/x86_64-linux-gnu-thread-multi/perllocal.pod
RCAPUTO/POE-1.367.tar.gz
/usr/bin/make install -- OK
RCAPUTO/Acme-POE-Tree-1.022.tar.gz
Has already been unwrapped into directory /home/vivek/.cpan/build/Acme-POE-Tree-1.022-uhlZUz
RCAPUTO/Acme-POE-Tree-1.022.tar.gz
Has already been prepared
Running make for R/RC/RCAPUTO/Acme-POE-Tree-1.022.tar.gz
cp lib/Acme/POE/Tree.pm blib/lib/Acme/POE/Tree.pm
Manifying 1 pod document
RCAPUTO/Acme-POE-Tree-1.022.tar.gz
/usr/bin/make -- OK
Running make test
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
t/01_basic.t .. ok
All tests successful.
Files=1, Tests=2, 6 wallclock secs ( 0.09 usr 0.03 sys + 0.53 cusr 0.06 csys = 0.71 CPU)
Result: PASS
RCAPUTO/Acme-POE-Tree-1.022.tar.gz
Tests succeeded but one dependency not OK (Curses)
RCAPUTO/Acme-POE-Tree-1.022.tar.gz
[dependencies] -- NA
### Show Christmas tree in the shell ###
Simply type the following command:
perl -MAcme::POE::Tree -e 'Acme::POE::Tree->new()->run()'
**Sample outputs:**
![Gif 01: An animated christmas tree in Perl](http://s0.cyberciti.org/uploads/cms/2015/12/perl-tree.gif)
Gif 01: An animated christmas tree in Perl
### Tree customization ###
Here is my tree.pl:
#!/usr/bin/perl
use Acme::POE::Tree;
my $tree = Acme::POE::Tree->new(
{
star_delay => 1.5, # shimmer star every 1.5 sec
light_delay => 2, # twinkle lights every 2 sec
run_for => 10, # automatically exit after 10 sec
}
);
$tree->run();
Now can play with your tree modifying star_delay, run_for, and light_delay. And ,there you have it a a Christmas tree in your shell for fun.
--------------------------------------------------------------------------------
via: http://www.cyberciti.biz/open-source/command-line-hacks/linux-unix-desktop-fun-christmas-tree-for-your-terminal/
作者：Vivek Gite
译者：[译者ID](https://github.com/译者ID)
校对：[校对者ID](https://github.com/校对者ID)
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