1、pathon、ruby、perl的使用场景

pason,ruby更适合web开发

perl适合文本处理

2、系统中查看perl版本信息

[root@arcerzhang perl]# perl -vThis is perl, v5.10.1 (*) built for x86_64-linux-thread-multiCopyright 1987-2009, Larry WallPerl may be copied only under the terms of either the Artistic License or theGNU General Public License, which may be found in the Perl 5 source kit.Complete documentation for Perl, including FAQ lists, should be found onthis system using "man perl" or "perldoc perl".  If you have access to theInternet, point your browser at http://www.perl.org/, the Perl Home Page.