Perl入门

  • perl程序文件可以不带扩展名字，也可以plx为扩展名

  • 查看perl的版本号

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    perl -v

  • 运行文件

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    perl hello.pl

  • 常用命令

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    perldoc CGI //查看CGI模块文档
    cpan -a //列出所有已安装的模块

  • mac os下安装local::lib模块

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    // 先从seach.cpan.org下载local::lib模块
    //进入local-lib的安装包
    cd local-lib-2.000019/
    //默认安装到~/perl5
    perl Makefile.PL --bootstrap 
    make test && make install
    perl5 -Mlocal::lib=$HOME/lib)"' >>~/.zshrc
    echo 'eval "$(perl -I$HOME/perl5/lib/perl5 -Mlocal::lib)"' >>~/.zshrc
    //重启shell

  • 使用模块

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    my $name = "/usr/local/bin/perl/marong";
    my $basename = basename $name;
    my $dirname = dirname $name;
    print "\$basename:$basename"; //marong
    print "\$dirname:$dirname"; //'/usr/local/bin/perl'