{"id":103,"date":"2009-07-30T17:55:28","date_gmt":"2009-07-30T17:55:28","guid":{"rendered":"http:\/\/kumouse.aafox.com\/?p=103"},"modified":"2009-07-30T17:55:28","modified_gmt":"2009-07-30T17:55:28","slug":"%e6%ad%a3%e5%88%99%e8%a1%a8%e8%be%be%e5%bc%8f-%e5%ad%a6%e4%b9%a0%e7%ac%94%e8%ae%b0","status":"publish","type":"post","link":"https:\/\/www.kumouse.com\/?p=103","title":{"rendered":"\u6b63\u5219\u8868\u8fbe\u5f0f \u5b66\u4e60\u7b14\u8bb0"},"content":{"rendered":"

\u6b63\u5219\u8868\u8fbe\u5f0f
\u524d\u8a00\uff1aed vim emacs grep gawk sed\u7b49\u5de5\u5177\u4f7f\u7528\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\uff0c\u8fd9\u4e9b\u8868\u8fbe\u5f0f\u4e0eshell\u7684\u6a21\u7cca\u6587\u4ef6\u5f15\u7528\u4e2d\u4f7f\u7528\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u662f\u4e0d\u540c\u7684<\/p>\n

A1 \u5b57\u7b26
   \u5b57\u7b26\u662f\u9664\u6362\u884c\u4e4b\u5916\u7684\u5176\u4ed6\u4efb\u610f\u5b57\u5b57\u7b26\u3002\u6b63\u5219\u8868\u8fbe\u5f0f\u4e2d\u7684\u5927\u591a\u6570\u5b57\u7b26\u4ee3\u8868\u5b83\u4eec\u81ea\u8eab\uff0c\u800c\u90a3\u4e9b\u4e0d\u4ee3\u8868\u81ea\u8eab\u7684\u5b57\u7b26\u79f0\u4e3a\u7279\u6b8a\u5b57\u7b26\u3002\u5982\u679c\u9700\u8981\u7279\u6b8a\u5b57\u7b26\u4ee3\u8868\u81ea\u8eab\uff0c\u90a3\u4e48\u5c31\u9700\u8981\u5c06\u8fd9\u4e9b\u5b57\u7b26\u8f6c\u4e49\u3002<\/p>\n

A2 \u5b9a\u754c\u7b26
  \u6b63\u5219\u8868\u8fbe\u5f0f\u4f7f\u7528 \/ \u4f5c\u4e3a\u5b9a\u754c\u7b26\uff0cvim\u4e2d\u5141\u8bb8\u4f7f\u7528\u5176\u5b83\u5b9a\u754c\u7b26\uff0c\u800cgrep\u4e0d\u4f7f\u7528\u4efb\u4f55\u5b9a\u754c\u7b26\u3002\u5728\u4e00\u4e9b\u542b\u4e49\u4e0d\u6a21\u7cca\u7684\u60c5\u51b5\u4e0b\uff0c\u7b2c2\u4e2a\u5b9a\u754c\u7b26\u4e0d\u662f\u5fc5\u8981\u7684\u3002\u4f8b\u5982\uff0c\u5f53\u7b2c2\u4e2a\u5b9a\u754c\u7b26\u540e\u9762\u8981\u7d27\u8ddfRETURN\u65f6\uff0c\u5c31\u53ef\u4ee5\u7701\u7565\u7b2c2 \u4e2a\u5b9a\u754c\u7b26<\/p>\n

A3 \u7b80\u5355\u5b57\u7b26\u4e32
\u6700\u57fa\u672c\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u662f\u53ea\u5305\u542b\u975e\u7279\u6b8a\u5b57\u7b26\u548c\u5b9a\u754c\u7b26\u7684\u7b80\u5355\u5b57\u7b26\u4e32\u3002\u7b80\u5355\u5b57\u7b26\u4e32\u53ea\u4e0e\u5b83\u81ea\u8eab\u5339\u914d
\u6b63\u5219\u8868\u8fbe\u5f0f  \u5339\u914d\u5b57\u7b26\u4e32  \u793a\u4f8b
\/ring\/  ring  
\/Thursday\/  Thursday  
\/or not\/  or not  <\/p>\n

A4 \u7279\u6b8a\u5b57\u7b26
  \u6b63\u5219\u8868\u8fbe\u5f0f\u4e2d\u4f7f\u7528\u7279\u6b8a\u5b57\u7b26\u53ef\u4ee5\u4f7f\u5f97\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\u591a\u4e2a\u5b57\u7b26\u4e32<\/p>\n

  A4.1 \u53e5\u70b9
  \/.alk\/ \u53e5\u70b9\u5339\u914d\u4efb\u610f\u5355\u4e2a\u5b57\u7b26\uff0c\u8be5\u5b57\u7b26\u4e0d\u80fd\u4e3a\u7a7a<\/p>\n

  A4.2 \u65b9\u62ec\u53f7
  \/[bB]ill\/  \u4e0ebill\u548cBill\u5339\u914d
  \/t[aeiou].k\/  \u4e0et\u540e\u8ddf\u5143\u97f3\u5b57\u6bcd\u5339\u914d
  \/# [6-9]\/  \u4e0e#\u540e\u8ddf\u7a7a\u683c\u518d\u8ddf6\u52309\u4e4b\u95f4\u7684\u6570\u5b57\u7684\u5b57\u7b26\u4e32\u5339\u914d
  \/[^a-zA-Z]\/ \u4e0e26\u4e2a\u5b57\u6bcd\u4e4b\u5916\u7684\u4efb\u610f\u5b57\u7b26\u5339\u914d<\/p>\n

  A4.3 \u661f\u53f7
  * \u8ddf\u968f\u5728\u4ee3\u8868\u67d0\u4e2a\u5b57\u7b26\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u4e4b\u540e\uff0c\u8868\u793a\u4e0e\u8be5\u6b63\u5219\u8868\u8fbe\u5f0f\u6240\u5339\u914d\u7684 0\u4e2a\u6216\u591a\u4e2a\u5339\u914d\uff0c\u8ddf\u5728\u53e5\u70b9\u540e\u7684\u661f\u53f7\u53ef\u4ee5\u5339\u914d\u4efb\u610f\u5b57\u7b26\u4e32\uff0c\u5b57\u7b26\u5b9a\u4e49\u7c7b\u540e\u8ddf\u661f\u53f7\u53ef\u4ee5\u5339\u914d\u5305\u542b\u8be5\u7c7b\u5b9a\u4e49\u7684\u6210\u5458\u5b57\u7b26\u7684\u4efb\u610f\u5b57\u7b26\u4e32
  \/ab*c\/  a\u540e\u8ddf0\u4e2a\u6216\u591a\u4e2ab\u540e\u518d\u8ddfc\u7684\u5b57\u7b26\u4e32\u5339\u914d
  \/ab.*c\/ \u4e0eab\u540e\u8ddf0\u4e2a\u6216\u591a\u4e2a\u5b57\u7b26\u518d\u8ddfc\u7684\u5b57\u7b26\u4e32\u5339\u914d
  \/t.*ing\/ \u4e0et\u540e\u8ddf0\u4e2a\u6216\u591a\u4e2a\u5b57\u4efb\u518d\u8ddfing\u7684\u5b57\u7b26\u4e32\u5339\u914d
  \/[a-zA-Z]*\/ \u4e0e\u7531\u5b57\u6bcd\u548c\u7a7a\u683c\u7ec4\u6210\u7684\u5b57\u7b26\u4e32\u5339\u914d
  \/(.*)\/ \u4e0e\u5706\u62ec\u53f7\u62ec\u8d77\u6765\u7684\u6700\u957f\u5b57\u7b26\u4e32\u5339\u914d
  \/([^)]*)\/ \u4e0e\u5706\u62ec\u53f7\u62ec\u8d77\u6765\u7684\u6700\u77ed\u5b57\u7b26\u4e32\u5339\u914d
  A4.4   \u8131\u5b57\u7b26\u4e0e\u7f8e\u5143\u7b26\u53f7
    \u4ee5\u8131\u5b57\u7b26\u5f00\u59cb\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u53ea\u80fd\u5339\u914d\u4f4d\u4e8e\u884c\u9996\u7684\u5b57\u7b26\u4e32\uff0c\u4ee5\u7f8e\u5143\u7b26\u53f7\u7ed3\u5c3e\u7684\u6b63\u5219\u8868    \u8fbe\u5f0f\u53ea\u80fd\u5339\u914d\u884c\u672b\u5c3e\u7684\u5b57\u7b26\u4e32
    \/^T\/  \u4e0e\u4f4d\u4e8e\u884c\u9996\u7684T\u5339\u914d
    \/^+[0-9]\/ \u4e0e\u4f4d\u4e8e\u884c\u4e14\u7531\u52a0\u53f7\u540e\u8ddf\u4e00\u4e2a\u6570\u5b57\u7ec4\u6210\u7684\u5b57\u7b26\u4e32\u5339\u914d
    \/:$\/ \u4e0e\u4f4d\u4e8e\u884c\u5c3e\u7684:\u5339\u914d<\/p>\n

  A4.5 \u8f6c\u4e49\u7279\u6b8a\u5b57\u7b26
    \u5728\u7279\u6b8a\u5b57\u7b26\u4e4b\u524d\u4f7f\u7528\u53cd\u659c\u6760\u53ef\u4ee5\u8f6c\u4e49\u9664\u6570\u5b57\u548c\u5706\u62ec\u53f7\u5916\u7684\u7279\u6b8a\u5b57\u7b26\u3002
    \/end.\/  \u4e0eend\u540e\u8ddf\u4e00\u4e2a\u53e5\u70b9\u7684\u5b57\u7b26\u4e32\u5339\u914d
    \/\\\/  \u4e0e\u5355\u72ec\u4e00\u4e2a\u53cd\u659c\u6760\u5339\u914d
    \/*\/ \u4e0e\u5355\u72ec\u4e00\u4e2a\u661f\u53f7\u5339\u914d
    \/[5]\/  \u4e0e [5]\u5339\u914d
    \/and\/or\/  \u4e0eand\/or\u5339\u914d<\/p>\n

A5 \u89c4\u5219
  A5.1 \u6700\u957f\u5339\u914d
    \u6b63\u5219\u8868\u8fbe\u5f0f\u603b\u662f\u4e0e\u5c3d\u53ef\u80fd\u957f\u7684\u5b57\u7b26\u4e32\u5339\u914d\uff0c\u4ece\u884c\u7684\u5f00\u59cb\u5c3d\u53ef\u80fd\u5730\u5411\u524d\u5339\u914d
    \u4f8b\u5982:This (rug) is not what it once was (a long time ago),is it?
    \u8868\u8fbe\u5f0f\/Th.*is\/\u5c06\u5339\u914d
    This (rug) is not what it once was (a long time ago),is
    \u8868\u8fbe\u5f0f\/(.*)\/\u5c06\u5339\u914d
    (rug) is not what it once was (a long time ago)
    \u8868\u8fbe\u5f0f\/([^)]*)\/\u5c06\u5339\u914d
    (rug)
  
  A5.2 \u7a7a\u6b63\u5219\u8868\u8fbe\u5f0f
    \u5bf9\u4e8e\u67d0\u6b64\u5de5\u5177\u4f8b\u5982vim \u548cless,\u4f46\u5bf9\u4e8egrep\u4e0d\u9002\u7528\uff0c\u7a7a\u6b63\u5219\u8868\u8fbe\u5f0f\u4ee3\u8868\u4e0a\u6b21\u4f7f\u7528\u7684\u8868\u8fbe\u5f0f\u3002\u4f8b\u5982\u5728vim \u4e2d\u4f7f\u7528\u4e0b\u9762\u7684\u66ff\u6362\u547d\u4ee4
    :\/s\/mike\/robert
    \u5982\u8981\u518d\u6b21\u4f7f\u7528\u8be5\u66ff\u6362\u53ef\u4ee5\u4f7f\u7528\u4e0b\u9762\u7684
    :s\/\/robert\/
    \u6216\u8005
    \u5148\u67e5\u627emike\u4e32\uff0c\u518d\u8fdb\u884c\u66ff\u6362
    \/mike\/
    :s\/\/robert\/
    \u5176\u4e2d\u7684\u7a7a\u6b63\u5219\u8868\u8fbe\u5f0f\uff08\/\/\uff09\u4ee3\u8868\u4e0a\u6b21\u4f7f\u7528\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\uff08\/mike\/\uff09<\/p>\n

A6 \u62ec\u53f7\u8868\u8fbe\u5f0f
  \u4f7f\u7528\u8f6c\u4e49\u5706\u62ec\u53f7\u53ef\u4ee5\u5c06\u4e0b\u5219\u8868\u8fbe\u5f0f\u62ec\u8d77\u6765\u3002\u4f46\u5e76\u4e0d\u4f1a\u6539\u53d8\u5339\u914d\u6548\u679c\u4f8b\u5982\u4e0b\u4f8b
  \/a(b*)c\/\u4e0e\/ab*c\/\u662f\u4e00\u6837\u7684<\/p>\n

A7 \u66ff\u6362\u5b57\u7b26\u4e32
  A7.1 &\u7b26\u53f7
    \u5728\u66ff\u6362\u5b57\u7b26\u4e32\u4e2d&\u4ee3\u8868\u641c\u7d22\u5b57\u7b26\u4e32\u6240\u5339\u914d\u7684\u5b57\u7b26\u4e32\u7684\u503c\uff0c\u4f8b
    \u5728\u6587\u4ef6 123 123 456 567\u4f7f\u7528:s\/[0-9][0-9]*\/(&)
    \u7ed3\u679c\u662f(123) (123) (456) (567)<\/p>\n

  A7.2 \u8f6c\u4e49\u6570\u5b57
    last-name, first-name initial
    \u8f6c\u6210first-name initial last-name<\/p>\n

    :1,$s\/([^,]*), (.*)\/2 1\/<\/p>\n

A8 \u6269\u5c55\u7684\u6b63\u5219\u8868\u8fbe\u5f0f
  \u5de5\u5177egrep,\u5e26-E\u7684\u5de5\u5177grep,\u548cgawk
  \u6211\u6ca1\u627e\u5230\u7528\u7684\u5730\u65b9\uff0c\u5148\u4e0d\u7ec6\u5199\u4e86\uff0c\u7528\u5230\u4e86\u518d\u52a0\u4e0a
  redhat vi\uff0cgrep\u90fd\u7528\u4e0d\u4e86<\/p>\n

A9 \u5c0f\u7ed3
\u6b63\u5219\u8868\u8fbe\u5f0f\u4e2d\u7684\u7279\u6b8a\u5b57\u7b26
.  \u4e0e\u5355\u4e2a\u5b57\u7b26\u5339\u914d
*  \u4e0e*\u524d\u8fb9\u4e00\u4e2a\u5b57\u7b26\u76840\u4e2a\u6216\u591a\u4e2a\u5339\u914d
^  \u4e0e\u884c\u7684\u5f00\u59cb\u5339\u914d\uff0c\u5728[]\u4e2d\u8868\u793a\u4e0d\u5305\u62ec\u5728\u7c7b\u4e2d
$  \u4e0e\u884c\u7684\u672b\u5c3e\u5339\u914d
  \u7528\u6765\u8f6c\u4e49\u7684
<  \u4e0e\u5b57\u7684\u5f00\u59cb\u5339\u914d
>  \u4e0e\u5b57\u7684\u672b\u5c3e\u5339\u914d<\/p>\n

\u6269\u5c55\u6b63\u5219
\u7565<\/p>\n

\u66ff\u6362\u5b57\u7b26\u4e32
&  \u4ee3\u8868\u5339\u914d\u7684\u5b57\u7b26\u4e32
n  \u8f6c\u4e49n\u4ee3\u8868\u7b2cn\u4e2a\u88ab\u62ec\u53f7\u6b63\u5219\u8868\u8fbe\u5f0f\u6240\u5339\u914d\u7684\u5b57\u7b26\u4e32<\/p>\n","protected":false},"excerpt":{"rendered":"

\u6b63\u5219\u8868\u8fbe\u5f0f\u524d\u8a00\uff1aed vim emacs grep gawk sed\u7b49\u5de5\u5177\u4f7f\u7528\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\uff0c\u8fd9\u4e9b\u8868\u8fbe\u5f0f\u4e0eshe […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-103","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/posts\/103","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=103"}],"version-history":[{"count":0,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/posts\/103\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.kumouse.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=103"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=103"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=103"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}