{"id":1198,"date":"2016-09-05T09:44:03","date_gmt":"2016-09-05T01:44:03","guid":{"rendered":"http:\/\/cn.hostease.com\/xueyuan\/?p=1198"},"modified":"2016-09-05T09:44:03","modified_gmt":"2016-09-05T01:44:03","slug":"shell%e5%8e%bb%e9%99%a4%e7%a9%ba%e8%a1%8c%e7%9a%844%e7%a7%8d%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/xueyuan\/jishu\/linux\/shell%e5%8e%bb%e9%99%a4%e7%a9%ba%e8%a1%8c%e7%9a%844%e7%a7%8d%e6%96%b9%e6%b3%95\/","title":{"rendered":"Shell\u53bb\u9664\u7a7a\u884c\u76844\u79cd\u65b9\u6cd5"},"content":{"rendered":"<div id=\"content\">\n<p>\u6709\u65f6\u6211\u4eec\u5728\u5904\u7406\u548c\u67e5\u770b\u6587\u4ef6\u65f6\uff0c\u7ecf\u5e38\u4f1a\u6709\u5f88\u591a\u7a7a\u884c\uff0c\u4e3a\u4e86\u7f8e\u89c2\u6216\u662f\u6709\u9700\u8981\u65f6\uff0c\u5c31\u6709\u5fc5\u8981\u628a\u8fd9\u4e9b\u9664\u884c\u53bb\u6389\u4e86\uff0c\u65b9\u6cd5\u5982\u4e0b:<\/p>\n<p><strong>1\uff09\u7528tr\u547d\u4ee4<\/strong><\/p>\n<div class=\"codetitle\">\u4ee3\u7801\u5982\u4e0b:<\/div>\n<div id=\"code80390\" class=\"codebody\">\ncat \u6587\u4ef6\u540d |tr -s \u2018\\n&#8217;<\/div>\n<p><strong>2\uff09\u7528sed\u547d\u4ee4<\/strong><\/p>\n<div class=\"codetitle\">\u00a0\u4ee3\u7801\u5982\u4e0b:<\/div>\n<div id=\"code72104\" class=\"codebody\">\ncat \u6587\u4ef6\u540d |sed \u2018\/^$\/d&#8217;<\/div>\n<p><strong>3\uff09\u7528awk\u547d\u4ee4<\/strong><\/p>\n<div class=\"codetitle\">\u4ee3\u7801\u5982\u4e0b:<\/div>\n<div id=\"code50078\" class=\"codebody\">\ncat \u6587\u4ef6\u540d |awk \u2018{if($0!=\u201d&#8221;)print}&#8217;<br \/>\ncat \u6587\u4ef6\u540d |awk \u2018{if(length !=0) print $0}&#8217;<\/div>\n<p><strong>4\uff09\u7528grep\u547d\u4ee4<\/strong><\/p>\n<div class=\"codetitle\">\u4ee3\u7801\u5982\u4e0b:<\/div>\n<div id=\"code89599\" class=\"codebody\">\ngrep -v \u201c^$\u201d \u6587\u4ef6\u540d<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u6709\u65f6\u6211\u4eec\u5728\u5904\u7406\u548c\u67e5\u770b\u6587\u4ef6\u65f6\uff0c\u7ecf\u5e38\u4f1a\u6709\u5f88\u591a\u7a7a\u884c\uff0c\u4e3a\u4e86\u7f8e\u89c2\u6216\u662f\u6709\u9700\u8981\u65f6\uff0c\u5c31\u6709\u5fc5\u8981\u628a\u8fd9\u4e9b\u9664\u884c\u53bb\u6389\u4e86\uff0c\u65b9\u6cd5\u5982\u4e0b: 1\uff09 &#8230; <a title=\"Shell\u53bb\u9664\u7a7a\u884c\u76844\u79cd\u65b9\u6cd5\" class=\"read-more\" href=\"https:\/\/cn.hostease.com\/xueyuan\/jishu\/linux\/shell%e5%8e%bb%e9%99%a4%e7%a9%ba%e8%a1%8c%e7%9a%844%e7%a7%8d%e6%96%b9%e6%b3%95\/\" aria-label=\"\u9605\u8bfb Shell\u53bb\u9664\u7a7a\u884c\u76844\u79cd\u65b9\u6cd5\">\u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[49],"tags":[38,62],"class_list":["post-1198","post","type-post","status-publish","format-standard","hentry","category-linux","tag-linux","tag-shell"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/1198","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/comments?post=1198"}],"version-history":[{"count":1,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/1198\/revisions"}],"predecessor-version":[{"id":1199,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/1198\/revisions\/1199"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/media?parent=1198"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/categories?post=1198"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/tags?post=1198"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}