Perl的设计目标是帮助UNIX用户完成一些常见的任务，这些任务对于shell来说过于沉重或对移植性要求过于严格。

　　Perl是按GNU Public License的形式分发的，其实质是免费的，原先运行于UNIX和类UNIX系统，现在已可以方便地在OS/2，Windows 9x，Windows/NT等系统下运行-Perl is designed to help UNIX users through some common tasks that are too heavy for the shell or to the transplant requirements too stringent. Perl is based on the distribution in the form of GNU Public License, and its essence is free of charge, the original running on UNIX and UNIX-systems, can now easily OS/2, Windows 9x, Windows/NT and other systems running under