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# test.rb#!/usr/bin/env rubywhile (line = STDIN.gets)  line.chomp!  next unless line =~ /^Hello\s+(\w+)/i        puts "name: #{$1}"end

# test.txthello worldHello Lookingdfdhello Jack

[root@master ruby_learning]# cat test.txt | ruby test.rbname: worldname: Lookingname: Jack

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# test.rb#!/usr/bin/env rubywhile (line = gets)  line.chomp!  next unless line =~ /^Hello\s+(\w+)/i        puts "name: #{$1}"end

# test.txthello worldHello Lookingdfdhello Jack

[root@master ruby_learning]# ruby test.rb test.txt      name: worldname: Lookingname: Jack

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