{"id":29,"date":"2013-04-23T12:05:00","date_gmt":"2013-04-23T04:05:00","guid":{"rendered":"http:\/\/www.pufengdu.org\/srv\/blog\/?p=29"},"modified":"2014-12-05T15:58:09","modified_gmt":"2014-12-05T07:58:09","slug":"sed-%e5%ae%9a%e4%bd%8d%e4%b8%8d%e5%8c%b9%e9%85%8d%e7%9a%84%e8%a1%8c","status":"publish","type":"post","link":"https:\/\/www.pufengdu.org\/blog\/?p=29","title":{"rendered":"sed \u5b9a\u4f4d\u4e0d\u5339\u914d\u7684\u884c"},"content":{"rendered":"

\u5728\u4f7f\u7528sed\u8fdb\u884c\u6587\u672c\u5904\u7406\u7684\u65f6\u5019\uff0c\u6709\u4e9b\u60c5\u51b5\u4e0b\u9700\u8981\u5bf9\u4e0d\u6ee1\u8db3\u6a21\u5f0f\u8981\u6c42\u7684\u884c\u8fdb\u884c\u5904\u7406\u3002sed\u662f\u5177\u6709\u8fd9\u4e2a\u529f\u80fd\u7684\u3002<\/p>\n

\u9996\u5148\uff0c\u8981\u660e\u767dsed\u7684\u547d\u4ee4\u5305\u542b\u4e24\u4e2a\u90e8\u5206\uff0c\u4e00\u4e2a\u90e8\u5206\u662f\u5730\u5740\uff0c\u4e00\u4e2a\u90e8\u5206\u662f\u64cd\u4f5c\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8e\u4eceUniProt\u4e0b\u8f7d\u7684FASTA\u6587\u4ef6\uff0c\u5982\u679c\u60f3\u5148\u628a\u6ce8\u91ca\u884c\u53d8\u6210\u53ea\u6709AC\u7684\u884c\uff0c\u5c31\u9700\u8981\u8fd9\u4e48\u505a\uff1a<\/p>\n

\r\nsed -re '\/^>\/ s\/^>S+|(S+)|.*$\/>1\/g'\r\n<\/pre>\n
-re\u9009\u9879\u7684\u542b\u4e49\u662f\u4f7f\u7528GNU\u6b63\u5219\u8868\u8fbe\u5f0f\u6269\u5c55\uff0c\u8fd9\u6837\u624d\u53ef\u4ee5\u5728\u547d\u4ee4\u884c\u91cc\u9762\u4f7f\u7528\u4f8b\u5982S+\u8fd9\u6837\u7684\u8f6c\u4e49\u5e8f\u5217\uff0c\u5982\u679c\u4e0d\u4f7f\u7528-re\u9009\u9879\uff0c\u90a3\u4e48\u5c31\u9700\u8981\u5199\u6210\u201cS+\u201d\u624d\u80fd\u8bc6\u522b\u3002<\/p>\n
\u66ff\u6362\u90e8\u5206\u7684\u542b\u4e49\u662f\u8981\u5f00\u5934\u662f\u201c>\u201d\u7136\u540e\u662f\u51e0\u4e2a\u53ef\u6253\u5370\u5b57\u7b26\uff0c\u7136\u540e\u662f\u4e24\u4e2a\u201c|\u201d\u4e2d\u95f4\u6709\u82e5\u5e72\u53ef\u6253\u5370\u5b57\u7b26\uff0c\u7136\u540e\u662f\u968f\u4fbf\u4ec0\u4e48\u5b57\u7b26\u76f4\u5230\u7ed3\u675f\u3002\u6211\u4eec\u9700\u8981\u7684AC\u7f16\u53f7\u5c31\u5728\u4e24\u4e2a\u201c|\u201d\u4e2d\u95f4\u3002\u6240\u4ee5\u8981\u628a\u8fd9\u91cc\u7684S+\u7528\u62ec\u53f7\u62ec\u8d77\u6765\uff0c\u5907\u7528\u4e3a\u53cd\u5411\u5f15\u7528\u3002\u7136\u540e\u5728\u66ff\u6362\u90e8\u5206\u4f7f\u7528\u201c1\u201d\uff0c\u6765\u5f15\u7528\u8fd9\u4e2a\u5339\u914d\u90e8\u5206\u3002<\/p>\n
\u90a3\u4e48\uff0c\u6211\u4eec\u77e5\u9053\u670920\u79cd\u6807\u51c6\u7684\u6c28\u57fa\u9178\uff0c\u800cBJOUXZ\u8fd96\u4e2a\u5b57\u6bcd\u90fd\u6709\u53ef\u80fd\u51fa\u73b0\u5728\u5e8f\u5217\u4e2d\uff0c\u5982\u679c\u6211\u4eec\u8fd8\u60f3\u628a\u5e8f\u5217\u91cc\u9762\u7684\u8fd9\u4e9b\u975e\u6807\u51c6\u7b26\u53f7\u90fd\u66ff\u6362\u6210\u201c*\u201d\uff0c\u90a3\u4e48\u600e\u4e48\u529e\u5462\u3002\u8fd9\u5c31\u9700\u8981\u8fdb\u884c\u4e0d\u5339\u914d\u7684\u884c\u7684\u64cd\u4f5c\uff0csed \u7684\u6587\u6863\u91cc\u9762\u5f88\u660e\u786e\u7684\u5199\u9053\u5982\u4e0b\u7684\u5185\u5bb9\uff1a<\/p>\n
\u201cAfter the address (or address-range), and before the command, a !\u00a0 may be inserted, which specifies that the command shall only be executed if the address (or address-range) does not match.\u201d<\/p>\n
\u6240\u4ee5\uff0c\u8981\u60f3\u5339\u914d\u90a3\u4e9b\u5e8f\u5217\u884c\uff0c\u5e76\u4e14\u53bb\u6389\u975e\u6807\u51c6\u7b26\u53f7\uff0c\u53ea\u8981\u4f7f\u7528\u5982\u4e0b\u7684\u547d\u4ee4\u5c31\u597d\u4e86<\/p>\n
\r\nsed -re '\/^>\/ ! s\/[BJOUXZ]\/*\/g'\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"
\u5728\u4f7f\u7528sed\u8fdb\u884c\u6587\u672c\u5904\u7406\u7684\u65f6\u5019\uff0c\u6709\u4e9b\u60c5\u51b5\u4e0b\u9700\u8981\u5bf9\u4e0d\u6ee1\u8db3\u6a21\u5f0f\u8981\u6c42\u7684\u884c\u8fdb\u884c\u5904\u7406\u3002se … \u7ee7\u7eed\u9605\u8bfb →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,5],"tags":[],"_links":{"self":[{"href":"https:\/\/www.pufengdu.org\/blog\/index.php?rest_route=\/wp\/v2\/posts\/29"}],"collection":[{"href":"https:\/\/www.pufengdu.org\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pufengdu.org\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pufengdu.org\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pufengdu.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=29"}],"version-history":[{"count":2,"href":"https:\/\/www.pufengdu.org\/blog\/index.php?rest_route=\/wp\/v2\/posts\/29\/revisions"}],"predecessor-version":[{"id":184,"href":"https:\/\/www.pufengdu.org\/blog\/index.php?rest_route=\/wp\/v2\/posts\/29\/revisions\/184"}],"wp:attachment":[{"href":"https:\/\/www.pufengdu.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=29"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pufengdu.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=29"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pufengdu.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=29"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}