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 -v This is perl, v5.10.1 (*) built for x86_64-linux-thread-multi Copyright 1987-2009, Larry Wall Perl may be copied only under the terms of either the Artistic License or the GNU General Public License, which may be found in the Perl 5 source kit. Complete documentation for Perl, including FAQ lists, should be found on this system using "man perl" or "perldoc perl". If you have access to the Internet, point your browser at http://www.perl.org/, the Perl Home Page.