$\"awk\u7cfb\u5217\uff1a\u5982\u4f55\u4f7f\u7528awk\u5185\u7f6e\u53d8\u91cf\"$ <\/p>\n

\u6211\u4eec\u5c06\u9010\u6e10\u63ed\u5f00 awk \u529f\u80fd\u7684\u795e\u79d8\u9762\u7eb1\uff0c\u5728\u672c\u8282\u4e2d\uff0c\u6211\u4eec\u5c06\u4ecb\u7ecd awk \u5185\u7f6ebuilt-in\u53d8\u91cf\u7684\u6982\u5ff5\u3002\u4f60\u53ef\u4ee5\u5728 awk \u4e2d\u4f7f\u7528\u4e24\u79cd\u7c7b\u578b\u7684\u53d8\u91cf\uff0c\u5b83\u4eec\u662f\uff1a\u7528\u6237\u81ea\u5b9a\u4e49user-defined\u53d8\u91cf\u548c\u5185\u7f6e\u53d8\u91cf\u3002awk \u5185\u7f6e\u53d8\u91cf\u5df2\u7ecf\u6709\u9884\u5148\u5b9a\u4e49\u7684\u503c\u4e86\uff0c\u4f46\u6211\u4eec\u4e5f\u53ef\u4ee5\u8c28\u614e\u5730\u4fee\u6539\u8fd9\u4e9b\u503c.<\/p>\n

awk \u5185\u7f6e\u53d8\u91cf\u5305\u62ec\uff1a<\/strong><\/div>\n
\n
FILENAME : \u5f53\u524d\u8f93\u5165\u6587\u4ef6\u540d\u79f0<\/li>\n
NR : \u5f53\u524d\u8f93\u5165\u884c\u7f16\u53f7(\u662f\u6307\u8f93\u5165\u884c 1\uff0c2\uff0c3\u2026\u2026\u7b49)<\/li>\n
NF : \u5f53\u524d\u8f93\u5165\u884c\u7684\u5b57\u6bb5\u7f16\u53f7<\/li>\n
OFS : \u8f93\u51fa\u5b57\u6bb5\u5206\u9694\u7b26<\/li>\n
FS : \u8f93\u5165\u5b57\u6bb5\u5206\u9694\u7b26<\/li>\n
ORS : \u8f93\u51fa\u8bb0\u5f55\u5206\u9694\u7b26<\/li>\n
RS : \u8f93\u5165\u8bb0\u5f55\u5206\u9694\u7b26<\/li>\n<\/ul>\n
FILENAME :<\/strong><\/span><\/div>\n
\u8ba9\u6211\u4eec\u7ee7\u7eed\u6f14\u793a\u4e00\u4e9b\u4f7f\u7528\u4e0a\u8ff0 awk \u5185\u7f6e\u53d8\u91cf\u7684\u65b9\u6cd5\uff0c\u60f3\u8981\u8bfb\u53d6\u5f53\u524d\u8f93\u5165\u6587\u4ef6\u7684\u540d\u79f0\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528 FILENAME \u5185\u7f6e\u53d8\u91cf\uff0c\u5982\u4e0b\uff1a$\u00a0awk\u00a0'\u00a0{\u00a0print\u00a0FILENAME\u00a0}\u00a0'\u00a0~\/domains.txt<\/span><\/p>\n
$\"awk\u7cfb\u5217\uff1a\u5982\u4f55\u4f7f\u7528awk\u5185\u7f6e\u53d8\u91cf\"$ <\/p>\n
\u4f60\u4f1a\u770b\u5230\uff0c\u6bcf\u4e00\u884c\u90fd\u4f1a\u5bf9\u5e94\u8f93\u51fa\u4e00\u6b21\u6587\u4ef6\u540d\uff0c\u90a3\u662f\u4f60\u4f7f\u7528 FILENAME \u5185\u7f6e\u53d8\u91cf\u65f6 awk \u9ed8\u8ba4\u7684\u884c\u4e3a\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 NR \u6765\u7edf\u8ba1\u4e00\u4e2a\u8f93\u5165\u6587\u4ef6\u7684\u884c\u6570(\u8bb0\u5f55)\uff0c\u8c28\u8bb0\uff1a\u5b83\u4e5f\u4f1a\u8ba1\u7b97\u7a7a\u884c\uff0c\u6b63\u5982\u6211\u4eec\u5c06\u8981\u5728\u4e0b\u9762\u7684\u4f8b\u5b50\u4e2d\u770b\u5230\u7684\u90a3\u6837\u3002\u00a0\u8f93\u51fa\u6587\u4ef6\u5185\u5bb9 \u5f53\u6211\u4eec\u4f7f\u7528 cat \u547d\u4ee4\u67e5\u770b\u6587\u4ef6 domains.txt \u65f6\uff0c\u4f1a\u53d1\u73b0\u5b83\u6709 14 \u884c\u6587\u672c\u548c 2 \u4e2a\u7a7a\u884c\uff1a$\u00a0cat\u00a0~\/domains.txt<\/span><\/p>\n
$\"awk\u7cfb\u5217\uff1a\u5982\u4f55\u4f7f\u7528awk\u5185\u7f6e\u53d8\u91cf\"$ <\/p>\n
awk \u7edf\u8ba1\u884c\u6570:<\/strong><\/span><\/div>\n
$\u00a0awk\u00a0'\u00a0END\u00a0{\u00a0print\u00a0\"Number\u00a0of\u00a0records\u00a0in\u00a0file\u00a0is:\u00a0\",\u00a0NR\u00a0}\u00a0'\u00a0~\/domains.txt<\/pre>\n
$\"awk\u7cfb\u5217\uff1a\u5982\u4f55\u4f7f\u7528awk\u5185\u7f6e\u53d8\u91cf\"$ <\/p>\n
awk \u7edf\u8ba1\u6587\u4ef6\u4e2d\u7684\u5b57\u6bb5\u6570:<\/strong><\/span><\/div>\n
$\u00a0awk\u00a0'{\u00a0\"Record:\",NR,\"has\",NF,\"fields\"\u00a0;\u00a0}'\u00a0~\/names.txt<\/pre>\n
\u00a0 $\"awk\u7cfb\u5217\uff1a\u5982\u4f55\u4f7f\u7528awk\u5185\u7f6e\u53d8\u91cf\"$ <\/p>\n
FS \u5185\u7f6e\u53d8\u91cf:<\/strong><\/span><\/div>\n
\u4f60\u4e5f\u53ef\u4ee5\u4f7f\u7528 FS \u5185\u7f6e\u53d8\u91cf\u6307\u5b9a\u4e00\u4e2a\u8f93\u5165\u6587\u4ef6\u5206\u9694\u7b26\uff0c\u5b83\u4f1a\u5b9a\u4e49 awk \u5982\u4f55\u5c06\u8f93\u5165\u884c\u5212\u5206\u6210\u5b57\u6bb5\u3002FS \u9ed8\u8ba4\u503c\u4e3a\u201c\u7a7a\u683c\u201d\u548c\u201c\u5236\u8868\u7b26\u201d\uff0c\u4f46\u6211\u4eec\u4e5f\u80fd\u5c06 FS \u503c\u4fee\u6539\u4e3a\u4efb\u4f55\u5b57\u7b26\u6765\u8ba9 awk \u6839\u636e\u60c5\u51b5\u5207\u5206\u8f93\u5165\u884c\u3002\u6709\u4e24\u79cd\u65b9\u6cd5\u53ef\u4ee5\u8fbe\u5230\u76ee\u7684\uff1a\u7b2c\u4e00\u79cd\u65b9\u6cd5\u662f\u4f7f\u7528 FS \u5185\u7f6e\u53d8\u91cf\uff1b\u7b2c\u4e8c\u79cd\u65b9\u6cd5\u662f\u4f7f\u7528 awk \u7684 -F \u9009\u9879\u3002\u6765\u770b Linux \u7cfb\u7edf\u4e0a\u7684 \/etc\/passwd \u6587\u4ef6\uff0c\u8be5\u6587\u4ef6\u4e2d\u7684\u5404\u5b57\u6bb5\u662f\u4f7f\u7528 \u5192\u53f7(:) \u5206\u9694\u7684\uff0c\u56e0\u6b64\uff0c\u5f53\u6211\u4eec\u60f3\u8981\u8fc7\u6ee4\u51fa\u67d0\u4e9b\u5b57\u6bb5\u65f6\uff0c\u53ef\u4ee5\u5c06\u5192\u53f7(:) \u6307\u5b9a\u4e3a\u65b0\u7684\u8f93\u5165\u5b57\u6bb5\u5206\u9694\u7b26\uff0c\u00a0awk \u8fc7\u6ee4\u5bc6\u7801\u6587\u4ef6\u4e2d\u7684\u5404\u5b57\u6bb5 . \u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 -F \u9009\u9879\uff0c\u5982\u4e0b\uff1a$\u00a0awk\u00a0-F':'\u00a0'{\u00a0print\u00a0$1,\u00a0$4\u00a0;}'\u00a0\/etc\/passwd<\/span><\/p>\n
$\"awk\u7cfb\u5217\uff1a\u5982\u4f55\u4f7f\u7528awk\u5185\u7f6e\u53d8\u91cf\"$ <\/p>\n
\u6b64\u5916\uff0c\u6211\u4eec\u4e5f\u53ef\u4ee5\u5229\u7528 FS \u5185\u7f6e\u53d8\u91cf\uff0c\u5982\u4e0b\uff1a$\u00a0awk\u00a0'\u00a0BEGIN\u00a0{\u00a0FS=\u201c:\u201d\u00a0;\u00a0}\u00a0{\u00a0print\u00a0$1,\u00a0$4\u00a0;\u00a0}\u00a0'\u00a0\/etc\/passwd<\/span><\/p>\n
$\"awk\u7cfb\u5217\uff1a\u5982\u4f55\u4f7f\u7528awk\u5185\u7f6e\u53d8\u91cf\"$ <\/p>\n
\u4f7f\u7528 OFS \u5185\u7f6e\u53d8\u91cf:<\/strong><\/span><\/div>\n
\u4f7f\u7528 OFS \u5185\u7f6e\u53d8\u91cf\u6765\u6307\u5b9a\u4e00\u4e2a\u7528\u4e8e\u8f93\u51fa\u7684\u5b57\u6bb5\u5206\u9694\u7b26\uff0c\u5b83\u4f1a\u5b9a\u4e49\u5982\u4f55\u4f7f\u7528\u6307\u5b9a\u7684\u5b57\u7b26\u5206\u9694\u8f93\u51fa\u5b57 \u00a0\u6bb5\u00a0\u4f7f\u7528 awk\u8f93\u51fa\u7684\u5206\u9694\u7b26: \u00a0 $\u00a0awk\u00a0-F':'\u00a0'\u00a0BEGIN\u00a0{\u00a0OFS=\"==>\"\u00a0;}\u00a0{\u00a0print\u00a0$1,\u00a0$4\u00a0;}'\u00a0\/etc\/passwd<\/span><\/p>\n
$\"awk\u7cfb\u5217\uff1a\u5982\u4f55\u4f7f\u7528awk\u5185\u7f6e\u53d8\u91cf\"$ <\/p>\n
\u5728\u672c\u8282\u4e2d\uff0c\u6211\u4eec\u5df2\u7ecf\u5b66\u4e60\u4e86\u4f7f\u7528\u542b\u6709\u9884\u5b9a\u4e49\u503c\u7684 awk \u5185\u7f6e\u53d8\u91cf\u7684\u7406\u5ff5\u3002\u4f46\u6211\u4eec\u4e5f\u80fd\u591f\u4fee\u6539\u8fd9\u4e9b\u503c\uff0c\u867d\u7136\u5e76\u4e0d\u63a8\u8350\u8fd9\u6837\u505a\uff0c\u9664\u975e\u4f60\u660e\u767d\u81ea\u5df1\u5728\u505a\u4ec0\u4e48\uff0c\u5e76\u4e14\u5145\u5206\u7406\u89e3(\u8fd9\u4e9b\u53d8\u91cf\u503c)\u3002<\/p>\n
\u6b64\u540e\uff0c\u6211\u4eec\u5c06\u7ee7\u7eed\u5b66\u4e60\u5982\u4f55\u5728 awk \u547d\u4ee4\u64cd\u4f5c\u4e2d\u4f7f\u7528 shell \u53d8\u91cf\uff0c\u6240\u4ee5\uff0c\u8bf7\u7ee7\u7eed\u5173\u6ce8\u6211\u4eec\u3002<\/p>\n
\n
\u539f\u6587\u6765\u81ea\uff1ahttp:\/\/os.51cto.com\/art\/201608\/515774.htm<\/a><\/p>\n
\u672c\u6587\u5730\u5740\uff1a http:\/\/lrxjmw.cn\/built-awk-variables.html<\/a><\/p>\n
\u7f16\u8f91\u5458\uff1a\u5f20\u96c4\uff0c\u5ba1\u6838\u5458\uff1a\u9004\u589e\u5b9d<\/span><\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"
\u6211\u4eec\u5c06\u9010\u6e10\u63ed\u5f00 awk \u529f\u80fd\u7684\u795e\u79d8\u9762\u7eb1\uff0c\u5728\u672c\u8282\u4e2d\uff0c\u6211\u4eec\u5c06\u4ecb\u7ecd awk \u5185\u7f6ebuilt-in\u53d8\u91cf\u7684\u6982\u5ff5\u3002\u4f60\u53ef\u4ee5\u5728 awk \u4e2d\u4f7f\u7528\u4e24\u79cd\u7c7b\u578b\u7684\u53d8\u91cf\uff0c\u5b83\u4eec\u662f\uff1a\u7528\u6237\u81ea\u5b9a\u4e49user-defined\u53d8\u91cf\u548c\u5185\u7f6e\u53d8\u91cf\u3002<\/p>\n","protected":false},"author":643,"featured_media":26111,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[55],"tags":[],"class_list":["post-25917","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\/25917","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\/643"}],"replies":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/comments?post=25917"}],"version-history":[{"count":9,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/25917\/revisions"}],"predecessor-version":[{"id":77796,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/25917\/revisions\/77796"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media\/26111"}],"wp:attachment":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media?parent=25917"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/categories?post=25917"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/tags?post=25917"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}