{"id":22742,"date":"2022-11-13T05:13:22","date_gmt":"2022-11-12T21:13:22","guid":{"rendered":"http:\/\/lrxjmw.cn\/?p=22742"},"modified":"2022-11-13T05:13:39","modified_gmt":"2022-11-12T21:13:39","slug":"awk-filt-string","status":"publish","type":"post","link":"https:\/\/lrxjmw.cn\/awk-filt-string.html","title":{"rendered":"\u5982\u4f55\u4f7f\u7528 awk \u6309\u6a21\u5f0f\u7b5b\u9009\u6587\u672c\u6216\u5b57\u7b26\u4e32"},"content":{"rendered":"<table>\n<tbody>\n<tr>\n<td style=\"padding: 5px 12px; width: 25px; font-size: 22px; text-align: center; background: #E8E8E8; line-height: 30px; color: #999;\">\u5bfc\u8bfb<\/td>\n<td style=\"padding: 10px 10px 12px; line-height: 20px;\"><strong>\u5728\u7b5b\u9009\u6587\u672c\u65f6\uff0c\u6709\u65f6\u4f60\u53ef\u80fd\u60f3\u6839\u636e\u67d0\u4e2a\u7ed9\u5b9a\u7684\u6761\u4ef6\u6216\u4f7f\u7528\u4e00\u4e2a\u53ef\u88ab\u5339\u914d\u7684\u7279\u5b9a\u6a21\u5f0f\uff0c\u53bb\u6807\u8bb0\u67d0\u4e2a\u6587\u4ef6\u6216\u6570\u884c\u5b57\u7b26\u4e32\u4e2d\u7684\u67d0\u51e0\u884c\u3002\u4f7f\u7528 awk \u6765\u5b8c\u6210\u8fd9\u4e2a\u4efb\u52a1\u662f\u975e\u5e38\u5bb9\u6613\u7684\uff0c\u8fd9\u4e5f\u6b63\u662f awk \u4e2d\u53ef\u80fd\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\u7684\u51e0\u4e2a\u529f\u80fd\u4e4b\u4e00\u3002<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-24512\" src=\"http:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/08\/awk-filt.jpg\" alt=\"awk-filt\" width=\"700\" height=\"150\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/08\/awk-filt.jpg 700w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/08\/awk-filt-300x64.jpg 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><br \/>\n\u8ba9\u6211\u4eec\u770b\u4e00\u770b\u4e0b\u9762\u8fd9\u4e2a\u4f8b\u5b50\uff0c\u6bd4\u65b9\u8bf4\u4f60\u6709\u4e00\u4e2a\u5199\u6709\u4f60\u60f3\u8981\u8d2d\u4e70\u7684\u98df\u7269\u7684\u8d2d\u7269\u6e05\u5355\uff0c\u5176\u540d\u79f0\u4e3a food_prices.list\uff0c\u5b83\u6240\u542b\u6709\u7684\u98df\u7269\u540d\u79f0\u53ca\u76f8\u5e94\u7684\u4ef7\u683c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre>$ cat food_prices.list \r\nNo  Item_Name       Quantity    Price\r\n1   Mangoes            10       $2.45\r\n2   Apples             20       $1.50\r\n3   Bananas            5        $0.90\r\n4   Pineapples         10       $3.46\r\n5   Oranges            10       $0.78\r\n6   Tomatoes           5        $0.55\r\n7   Onions             5        $0.45\r\n<\/pre>\n<p>\u7136\u540e\uff0c\u4f60\u60f3\u4f7f\u7528\u4e00\u4e2a (*) \u7b26\u53f7\u53bb\u6807\u8bb0\u90a3\u4e9b\u5355\u4ef7\u5927\u4e8e $2 \u7684\u98df\u7269\uff0c\u90a3\u4e48\u4f60\u53ef\u4ee5\u901a\u8fc7\u8fd0\u884c\u4e0b\u9762\u7684\u547d\u4ee4\u6765\u8fbe\u5230\u6b64\u76ee\u7684\uff1a<\/p>\n<pre>$ awk '\/ *\/$[2-9]\/.[0-9][0-9] *\/ { print $1, $2, $3, $4, \"*\" ; } \/ *\/$[0-1]\/.[0-9][0-9] *\/ { print ; }' food_prices.list\r\n<\/pre>\n<p><img decoding=\"async\" src=\"http:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/07\/230539dsxmn3axkmmammm4.gif\" alt=\"awk \u7cfb\u5217\uff1a\u5982\u4f55\u4f7f\u7528 awk \u6309\u6a21\u5f0f\u7b5b\u9009\u6587\u672c\u6216\u5b57\u7b26\u4e32\" \/><\/p>\n<p><em>\u6253\u5370\u51fa\u5355\u4ef7\u5927\u4e8e $2 \u7684\u9879\u76ee<\/em><\/p>\n<p>\u4ece\u4e0a\u9762\u7684\u8f93\u51fa\u4f60\u53ef\u4ee5\u770b\u5230\u5728\u542b\u6709<ruby>\u8292\u679c<rp>\uff08<\/rp><\/ruby><span style=\"line-height: 1.5;\">\u548c<\/span><ruby style=\"line-height: 1.5;\">\u83e0\u841d<\/ruby><span style=\"line-height: 1.5;\">\u7684\u90a3\u884c\u672b\u5c3e\u90fd\u5df2\u7ecf\u6709\u4e86\u4e00\u4e2a (*) \u6807\u8bb0\u3002\u5047\u5982\u4f60\u68c0\u67e5\u5b83\u4eec\u7684\u5355\u4ef7\uff0c\u4f60\u53ef\u4ee5\u770b\u5230\u5b83\u4eec\u7684\u5355\u4ef7\u7684\u786e\u8d85\u8fc7\u4e86 $2 \u3002<\/span><\/p>\n<div   id="j6sjwn9j3u"    class=\"alert alert-info\">\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5df2\u7ecf\u4f7f\u7528\u4e86\u4e24\u4e2a\u6a21\u5f0f\uff1a<br \/>\n\u7b2c\u4e00\u4e2a\u6a21\u5f0f: \/ *\/$[2-9]\/.[0-9][0-9] *\/ \u5c06\u4f1a\u5f97\u5230\u90a3\u4e9b\u542b\u6709\u98df\u7269\u5355\u4ef7\u5927\u4e8e $2 \u7684\u884c\u3002<br \/>\n\u7b2c\u4e8c\u4e2a\u6a21\u5f0f: \/*\/$[0-1]\/.[0-9][0-9] *\/ \u5c06\u67e5\u627e\u90a3\u4e9b\u98df\u7269\u5355\u4ef7\u5c0f\u4e8e $2 \u7684\u90a3\u4e9b\u884c\u3002<\/div>\n<p>\u4e0a\u9762\u7684\u547d\u4ee4\u5177\u4f53\u505a\u4e86\u4ec0\u4e48\u5462\uff1f\u8fd9\u4e2a\u6587\u4ef6\u6709\u56db\u4e2a\u5b57\u6bb5\uff0c\u5f53\u6a21\u5f0f\u4e00\u5339\u914d\u5230\u542b\u6709\u98df\u7269\u5355\u4ef7\u5927\u4e8e $2 \u7684\u884c\u65f6\uff0c\u5b83\u4fbf\u4f1a\u8f93\u51fa\u6240\u6709\u7684\u56db\u4e2a\u5b57\u6bb5\u5e76\u5728\u8be5\u884c\u672b\u5c3e\u52a0\u4e0a\u4e00\u4e2a (*) \u7b26\u53f7\u6765\u4f5c\u4e3a\u6807\u8bb0\u3002<\/p>\n<p>\u7b2c\u4e8c\u4e2a\u6a21\u5f0f\u53ea\u662f\u7b80\u5355\u5730\u8f93\u51fa\u5176\u4ed6\u542b\u6709\u98df\u7269\u5355\u4ef7\u5c0f\u4e8e $2 \u7684\u884c\uff0c\u6309\u7167\u5b83\u4eec\u51fa\u73b0\u5728\u8f93\u5165\u6587\u4ef6 food_prices.list \u4e2d\u7684\u6837\u5b50\u3002<\/p>\n<p>\u8fd9\u6837\u4f60\u5c31\u53ef\u4ee5\u4f7f\u7528\u6a21\u5f0f\u6765\u7b5b\u9009\u51fa\u90a3\u4e9b\u4ef7\u683c\u8d85\u8fc7 $2 \u7684\u98df\u7269\u9879\u76ee\uff0c\u5c3d\u7ba1\u4e0a\u9762\u7684\u8f93\u51fa\u8fd8\u6709\u4e9b\u95ee\u9898\uff0c\u5e26\u6709 (*) \u7b26\u53f7\u7684\u90a3\u4e9b\u884c\u5e76\u6ca1\u6709\u50cf\u5176\u4ed6\u884c\u90a3\u6837\u88ab\u683c\u5f0f\u5316\u8f93\u51fa\uff0c\u8fd9\u4f7f\u5f97\u8f93\u51fa\u663e\u5f97\u4e0d\u591f\u6e05\u6670\u3002<\/p>\n<p>\u6211\u4eec\u5728 awk \u7cfb\u5217\u7684\u7b2c\u4e8c\u90e8\u5206\u4e2d\u4e5f\u770b\u5230\u4e86\u540c\u6837\u7684\u95ee\u9898\uff0c\u4f46\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4e0b\u9762\u7684\u4e24\u79cd\u65b9\u5f0f\u6765\u89e3\u51b3\uff1a<\/p>\n<p>1\u3001\u53ef\u4ee5\u50cf\u4e0b\u9762\u8fd9\u6837\u4f7f\u7528 printf \u547d\u4ee4\uff0c\u4f46\u8fd9\u6837\u4f7f\u7528\u53c8\u957f\u53c8\u65e0\u804a\uff1a<\/p>\n<pre>$ awk '\/ *\/$[2-9]\/.[0-9][0-9] *\/ { printf \"%-10s %-10s %-10s %-10s\/n\", $1, $2, $3, $4 \"*\" ; } \/ *\/$[0-1]\/.[0-9][0-9] *\/ { printf \"%-10s %-10s %-10s %-10s\/n\", $1, $2, $3, $4; }' food_prices.list \r\n<\/pre>\n<p><img decoding=\"async\" src=\"http:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/07\/230540bgvg4e928u96z3z6.gif\" alt=\"awk \u7cfb\u5217\uff1a\u5982\u4f55\u4f7f\u7528 awk \u6309\u6a21\u5f0f\u7b5b\u9009\u6587\u672c\u6216\u5b57\u7b26\u4e32\" \/><\/p>\n<p><em>\u4f7f\u7528 Awk \u548c Printf \u6765\u7b5b\u9009\u548c\u8f93\u51fa\u9879\u76ee<\/em><\/p>\n<p>2\u3001 \u4f7f\u7528 $0 \u5b57\u6bb5\u3002Awk \u4f7f\u7528\u53d8\u91cf <strong>0<\/strong> \u6765\u5b58\u50a8\u6574\u4e2a\u8f93\u5165\u884c\u3002\u5bf9\u4e8e\u4e0a\u9762\u7684\u95ee\u9898\uff0c\u8fd9\u79cd\u65b9\u5f0f\u975e\u5e38\u65b9\u4fbf\uff0c\u5e76\u4e14\u5b83\u8fd8\u7b80\u5355\u3001\u5feb\u901f\uff1a<\/p>\n<pre>$ awk '\/ *\/$[2-9]\/.[0-9][0-9] *\/ { print $0 \"*\" ; } \/ *\/$[0-1]\/.[0-9][0-9] *\/ { print ; }' food_prices.list \r\n<\/pre>\n<p><img decoding=\"async\" src=\"http:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/07\/230540bzajj3zdatbl3web.gif\" alt=\"awk \u7cfb\u5217\uff1a\u5982\u4f55\u4f7f\u7528 awk \u6309\u6a21\u5f0f\u7b5b\u9009\u6587\u672c\u6216\u5b57\u7b26\u4e32\" \/><\/p>\n<p><em>\u4f7f\u7528 Awk \u548c\u53d8\u91cf\u6765\u7b5b\u9009\u548c\u8f93\u51fa\u9879\u76ee<\/em><\/p>\n<div   id="j6sjwn9j3u"    style=\"font-size: 14pt; color: white; background-color: black; border-left: red 10px solid; padding-left: 14px; margin-bottom: 20px; margin-top: 20px;\"><strong>\u7ed3\u8bba<\/strong><\/div>\n<p>\u8fd9\u5c31\u662f\u5168\u90e8\u5185\u5bb9\u4e86\uff0c\u4f7f\u7528 awk \u547d\u4ee4\u4f60\u4fbf\u53ef\u4ee5\u901a\u8fc7\u51e0\u79cd\u7b80\u5355\u7684\u65b9\u6cd5\u53bb\u5229\u7528\u6a21\u5f0f\u5339\u914d\u6765\u7b5b\u9009\u6587\u672c\uff0c\u5e2e\u52a9\u4f60\u5728\u4e00\u4e2a\u6587\u4ef6\u4e2d\u5bf9\u6587\u672c\u6216\u5b57\u7b26\u4e32\u7684\u67d0\u4e9b\u884c\u505a\u6807\u8bb0\u3002<\/p>\n<p style=\"text-align: left; color: #88a6a4;\">\u539f\u6587\u6765\u81ea\uff1a<a href=\"https:\/\/linux.cn\/article-7599-1.html\" target=\"_blank\" rel=\"noopener\">https:\/\/linux.cn\/article-7599-1.html<\/a><\/p>\n<p style=\"text-align: left; color: #88a6a4;\">\u672c\u6587\u5730\u5740\uff1a<a href=\"http:\/\/lrxjmw.cn\/awk-filt-string.html\" target=\"_blank\" rel=\"noopener\">http:\/\/lrxjmw.cn\/awk-filt-string.html<\/a><span style=\"float: right;\">\u7f16\u8f91\u5458\uff1a\u82cf\u897f\u4e91\uff0c\u5ba1\u6838\u5458\uff1a\u51af\u632f\u534e<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f5c\u4e3a awk \u547d\u4ee4\u7cfb\u5217\u7684\u7b2c\u4e09\u90e8\u5206\uff0c\u8fd9\u6b21\u6211\u4eec\u5c06\u770b\u4e00\u770b\u5982\u4f55\u57fa\u4e8e\u7528\u6237\u5b9a\u4e49\u7684\u7279\u5b9a\u6a21\u5f0f\u6765\u7b5b\u9009\u6587\u672c\u6216\u5b57\u7b26\u4e32\u3002<\/p>\n","protected":false},"author":63,"featured_media":24512,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[55],"tags":[],"class_list":["post-22742","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-thread"],"acf":[],"_links":{"self":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/22742","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/users\/63"}],"replies":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/comments?post=22742"}],"version-history":[{"count":14,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/22742\/revisions"}],"predecessor-version":[{"id":257355,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/22742\/revisions\/257355"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media\/24512"}],"wp:attachment":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media?parent=22742"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/categories?post=22742"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/tags?post=22742"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}