从在bash一个谷歌的网页链接提取(Link extraction from a google pa

我正在做一个脚本，它所有的链接从谷歌网页在bash。我获得与谷歌的网页w3m实用性和这个脚本：

#!/bin/bash 
# performs a google search using a word in input

word=$1

touch .google

if [ -z $word ]
then
    echo "$word missing!"
    echo "Aborting..."
    exit
fi


a="www.google.com/search?q="  
search=$a$word

w3m -no-cookie $search > .google

sleep 1

接下来，我得从这个页面的所有网站。我的想法是把所有以启动字符串www. 和结尾/

echo `grep -wo "www[^/]*" .google`> .temp

这里的问题是，我错过了很多不以启动链接的www ，并在同一时间，我铤而走险的一切，当有是不是结束一个网站/ 。

有什么更好的办法，我可以从中得到响应的网址吗？

Answer 1:

链接提取是一个难题。然而， lynx方案有一个方便-dump选项，可以让你跳过大部分（或全部）HTML解析。

特别要注意References在底部。你可以采取从该行以后的输出，并去掉了领先的子弹数目：

$ lynx -dump 'http://www.seomoz.org/'
   #[1]RSS 2.0 [2]publisher

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          + [25]SEO Blog
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     * [27]About
          + [28]Our TAGFEE Mission
          + [29]Meet the Mozzers
          + [30]Contact Us
          + [31]Join Our Team
          + [32]Press & Awards
          + [33]Events

   Search SEOmoz

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   13

   2
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[50]Does SEO Even Work for Small Businesses?

   Posted by [51]larry.kim on 08/03/2012
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References

   1. http://feeds.feedburner.com/seomoz
   2. https://plus.google.com/112544075040456048636
   3. http://www.seomoz.org/
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   5. https://www.seomoz.org/users/register
   6. http://www.seomoz.org/
   7. http://www.seomoz.org/help
   8. http://www.seomoz.org/q
   9. http://seomoz.zendesk.com/forums/293194-seomoz-PRO-feature-requests
  10. http://www.seomoz.org/about/contact
  11. http://www.seomoz.org/features
  12. http://www.seomoz.org/plans
  13. http://www.seomoz.org/community
  14. http://www.seomoz.org/blog
  15. http://www.seomoz.org/ugc
  16. http://www.seomoz.org/users
  17. http://www.seomoz.org/about/events
  18. http://www.seomoz.org/article/recommended
  19. http://www.seomoz.org/resources
  20. http://www.seomoz.org/learn-seo
  21. http://www.seomoz.org/tools
  22. http://www.seomoz.org/q
  23. http://www.seomoz.org/api
  24. http://www.seomoz.org/blog
  25. http://www.seomoz.org/blog
  26. http://www.seomoz.org/ugc
  27. http://www.seomoz.org/about
  28. http://www.seomoz.org/about/mission
  29. http://www.seomoz.org/about/team
  30. http://www.seomoz.org/about/contact
  31. http://www.seomoz.org/about/jobs
  32. http://www.seomoz.org/about/press
  33. http://www.seomoz.org/about/seo-events
  34. http://www.seomoz.org/cart/freetrial?pg=home
  35. http://www.seomoz.org/features
  36. http://www.seomoz.org/plans
  37. http://feeds.feedburner.com/seomoz
  38. http://twitter.com/seomoz
  39. http://www.facebook.com/SEOmoz
  40. https://plus.google.com/112544075040456048636?prsrc=3
  41. http://www.seomoz.org/features
  42. http://www.seomoz.org/features
  43. http://www.seomoz.org/features
  44. http://www.seomoz.org/users/profile/81197
  45. http://www.seomoz.org/blog/winners-mozcation-2012
  46. http://www.seomoz.org/users/profile/81197
  47. http://www.seomoz.org/blog/winners-mozcation-2012
  48. http://www.seomoz.org/blog/winners-mozcation-2012#comments
  49. http://www.seomoz.org/users/profile/402613
  50. http://www.seomoz.org/ugc/does-seo-even-work-for-small-businesses
  51. http://www.seomoz.org/users/profile/402613
  52. http://www.seomoz.org/ugc/does-seo-even-work-for-small-businesses
  53. http://www.seomoz.org/ugc/does-seo-even-work-for-small-businesses#comments
  54. http://www.seomoz.org/cart/freetrial?pg=features
  55. http://www.seomoz.org/dp/distilled
  56. http://www.seomoz.org/features
  57. http://www.seomoz.org/plans
  58. http://www.opensiteexplorer.org/
  59. http://www.seomoz.org/seo-toolbar
  60. http://www.seomoz.org/api
  61. http://www.seomoz.org/tools
  62. http://www.seomoz.org/about
  63. http://www.seomoz.org/blog
  64. http://www.seomoz.org/ugc
  65. http://www.seomoz.org/dp/seomoz-pro-affiliate-program
  66. http://www.seomoz.org/terms-and-privacy
  67. http://www.seomoz.org/pro-perks
  68. http://www.seomoz.org/blog/category/4
  69. http://www.seomoz.org/blog/category/19
  70. http://www.seomoz.org/blog/category/8
  71. http://www.seomoz.org/blog/category/18
  72. http://www.seomoz.org/blog/category/1
  73. http://www.seomoz.org/blog
  74. http://feeds.feedburner.com/seomoz
  75. http://twitter.com/seomoz
  76. http://www.facebook.com/SEOmoz
  77. http://www.linkedin.com/groups?about=&gid=2976409&trk=anet_ug_grppro
  78. http://www.seomoz.org/about/contact
  79. http://www.seomoz.org/sitemap

Answer 2:

您可能需要到grep的<a href="并采取值到下一个报价符号，然后过滤掉所有的JavaScript的东西。虽然这种解决方案可能不是防呆无论是。