Perl summary-hello world

helloworld.pl

#!/usr/bin/perl

#author:wendy Zhou

#Date:2009.04.02

#Purpose:Echoes Hello world,etc.

        print "Hello World\n";

        print 29\n;

        print "Hello

                 World\n";

#END

perl -w helloworld.pl

if #!/usr/bin/perl -w ,can use perl helloworld.pl to exec.

perl helloworld.pl > data1,the output will be put to file data1.

chmod u+x helloworld.pl. then can use ./helloworld.pl tp exec.

output:

Hello World

29

Hello

  World