{"id":162517,"date":"2019-11-25T09:45:22","date_gmt":"2019-11-25T01:45:22","guid":{"rendered":"https:\/\/lrxjmw.cn\/?p=162517"},"modified":"2019-10-25T09:46:53","modified_gmt":"2019-10-25T01:46:53","slug":"shell-here-document","status":"publish","type":"post","link":"https:\/\/lrxjmw.cn\/shell-here-document.html","title":{"rendered":"Shell \u4e4bHere Document"},"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>Here Document \u662f Shell \u4e2d\u7684\u4e00\u79cd\u7279\u6b8a\u7684\u91cd\u5b9a\u5411\u65b9\u5f0f\uff0c\u7528\u6765\u5c06\u8f93\u5165\u91cd\u5b9a\u5411\u5230\u4e00\u4e2a\u4ea4\u4e92\u5f0f Shell \u811a\u672c\u6216\u7a0b\u5e8f\u3002<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-162518 aligncenter\" src=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2019\/10\/2-16.jpg\" alt=\"\" width=\"500\" height=\"375\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2019\/10\/2-16.jpg 500w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2019\/10\/2-16-300x225.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p><strong>Here Document\u7684\u57fa\u672c\u7684\u5f62\u5f0f\u5982\u4e0b\uff1a<\/strong><\/p>\n<pre>command < < delimiter\r\n    document\r\ndelimiter<\/pre>\n<p>\u5b83\u7684\u4f5c\u7528\u662f\u5c06\u4e24\u4e2a delimiter \u4e4b\u95f4\u7684\u5185\u5bb9(document) \u4f5c\u4e3a\u8f93\u5165\u4f20\u9012\u7ed9 command\u3002<\/p>\n<p><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<p>\u7ed3\u5c3e\u7684delimiter \u4e00\u5b9a\u8981\u9876\u683c\u5199\uff0c\u524d\u9762\u4e0d\u80fd\u6709\u4efb\u4f55\u5b57\u7b26\uff0c\u540e\u9762\u4e5f\u4e0d\u80fd\u6709\u4efb\u4f55\u5b57\u7b26\uff0c\u5305\u62ec\u7a7a\u683c\u548c tab \u7f29\u8fdb\u3002<br \/>\n\u5f00\u59cb\u7684delimiter\u524d\u540e\u7684\u7a7a\u683c\u4f1a\u88ab\u5ffd\u7565\u6389\u3002<br \/>\n\u5b9e\u4f8b<br \/>\n\u5728\u547d\u4ee4\u884c\u4e2d\u901a\u8fc7 wc -l \u547d\u4ee4\u8ba1\u7b97 Here Document \u7684\u884c\u6570\uff1a<\/p>\n<pre>$ wc -l < < EOF\r\n    \u6b22\u8fce\u6765\u5230\r\n    \u83dc\u9e1f\u6559\u7a0b\r\n    www.runoob.com\r\nEOF\r\n3          # \u8f93\u51fa\u7ed3\u679c\u4e3a 3 \u884c\r\n$<\/pre>\n<p>\u6211\u4eec\u4e5f\u53ef\u4ee5\u5c06 Here Document \u7528\u5728\u811a\u672c\u4e2d\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>#!\/bin\/bash\r\n# author:\u83dc\u9e1f\u6559\u7a0b\r\n# url:www.runoob.com\r\n\r\ncat < < EOF\r\n\u6b22\u8fce\u6765\u5230\r\n\u83dc\u9e1f\u6559\u7a0b\r\nwww.runoob.com\r\nEOF<\/pre>\n<p>\u6267\u884c\u4ee5\u4e0a\u811a\u672c\uff0c\u8f93\u51fa\u7ed3\u679c\uff1a<\/p>\n<pre>\u6b22\u8fce\u6765\u5230\r\n\u83dc\u9e1f\u6559\u7a0b\r\nwww.runoob.com<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Here Document\u7684\u57fa\u672c\u7684\u5f62\u5f0f\u5982\u4e0b\uff1a command < < delimiter document d [&hellip;]\n<\/p>\n","protected":false},"author":1470,"featured_media":162519,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[55],"tags":[],"class_list":["post-162517","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\/162517","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\/1470"}],"replies":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/comments?post=162517"}],"version-history":[{"count":2,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/162517\/revisions"}],"predecessor-version":[{"id":162521,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/162517\/revisions\/162521"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media\/162519"}],"wp:attachment":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media?parent=162517"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/categories?post=162517"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/tags?post=162517"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}