如何解析命令行参数? [英] How can I parse command line arguments?

问题描述

我想在perl脚本中解析参数列表，例如，我遇到这种情况:

I want to parse a list of arguments in a perl script, for example i have this situation :

script.pl -h 127.0.0.1 -u user -p pass arg1 arg2 arg3

我该如何解析数组中不是option的参数列表以及标量值中的option参数?

How can i do for parse the list of argument that aren't option in an array, and the option parameter in scalar value ?

谢谢.

推荐答案

好吧，如果它们是命令行中唯一未作为选项提供的内容，则它们仍应位于@ARGV中.因此，只需使用@ARGV.

Well, if they are the only things on the command line that aren't given as options, then they should still be in @ARGV. So just use @ARGV.

use Getopt::Long;

# save arguments following -h or --host in the scalar $host
# the '=s' means that an argument follows the option
# they can follow by a space or '=' ( --host=127.0.0.1 )
GetOptions( 'host=s' => \my $host 
          , 'user=s' => \my $user  # same for --user or -u
          , 'pass=s' => \my $pass  # same for --pass or -p
          );

# @ARGV: [ qw<arg1 arg2 arg3> ]

请参见 Getopt::Long

这篇关于如何解析命令行参数?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！