{"id":168991,"date":"2020-01-11T11:00:01","date_gmt":"2020-01-11T03:00:01","guid":{"rendered":"https:\/\/lrxjmw.cn\/?p=168991"},"modified":"2020-01-02T13:53:02","modified_gmt":"2020-01-02T05:53:02","slug":"linux-basic-echo","status":"publish","type":"post","link":"https:\/\/lrxjmw.cn\/linux-basic-echo.html","title":{"rendered":"Linux\u57fa\u7840\u547d\u4ee4\uff1aecho\u7684\u4f7f\u7528"},"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>echo\u6307\u4ee4\u53ef\u4ee5\u8f93\u51fa\u5185\u5bb9\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u4ee5\u7a7a\u767d\u5206\u5272\u5b57\u7b26\u4e32\uff0c\u5e76\u4e14\u540e\u9762\u589e\u52a0\u6362\u884c\u3002\u6b64\u547d\u4ee4\u7684\u9002\u7528\u8303\u56f4\uff1aRedHat\u3001RHEL\u3001Ubuntu\u3001CentOS\u3001Fedora\u3002<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div   id="j6sjwn9j3u"    style=\"margin-top:2em;margin-bottom:1em\"><span style=\"color:#1E1E1E;letter-spacing: 2px;border-left:#FF3030 3px solid;border-right:#FF3030 3px solid;padding-left: 8px;padding-right:8px;font-size: 12pt\"><strong>\u8bed\u6cd5<\/strong><\/span><\/div>\n<pre>\r\necho [-neE]  [arg ...]<\/pre>\n<div   id="j6sjwn9j3u"    style=\"margin-top:2em;margin-bottom:1em\"><span style=\"color:#1E1E1E;letter-spacing: 2px;border-left:#FF3030 3px solid;border-right:#FF3030 3px solid;padding-left: 8px;padding-right:8px;font-size: 12pt\"><strong>\u9009\u9879\u5217\u8868<\/strong><\/span><\/div>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2020\/01\/echo_options.jpg\" alt=\"\" width=\"641\" height=\"545\" class=\"aligncenter size-full wp-image-168995\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2020\/01\/echo_options.jpg 641w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2020\/01\/echo_options-300x255.jpg 300w\" sizes=\"auto, (max-width: 641px) 100vw, 641px\" \/><\/p>\n<div   id="j6sjwn9j3u"    style=\"margin-top:2em;margin-bottom:1em\"><span style=\"color:#1E1E1E;letter-spacing: 2px;border-left:#FF3030 3px solid;border-right:#FF3030 3px solid;padding-left: 8px;padding-right:8px;font-size: 12pt\"><strong>\u4f7f\u7528\u793a\u4f8b<\/strong><\/span><\/div>\n<p><strong>\u4f7f\u7528\u201c\\f\u201d\u6362\u884c<\/strong><\/p>\n<pre>[root@localhost ~]# echo -e \"hello\\fworld\"              \/\/\u5fc5\u987b\u4f7f\u7528-e\u9009\u9879\uff0c\\f\u6362\u884c\u4e4b\u540e\uff0c\u5149\u6807\u8fd8\u5728\u7ed3\u5c3e\r\n\r\nhello\r\n\r\n     world\r\n\r\n[root@localhost ~]# <\/pre>\n<p><strong>\u4f7f\u7528\u201c\\n\u201d\u6362\u884c <\/strong><\/p>\n<pre>\r\n\r\n[root@localhost ~]# echo -e \"hello\\nworld\"              \/\/\u5fc5\u987b\u4f7f\u7528-e\u9009\u9879\uff0c\\n\u6362\u884c\u4e4b\u540e\uff0c\u5149\u6807\u5728\u5f00\u5934\r\n\r\nhello\r\n\r\nworld\r\n\r\n[root@localhost ~]# \r\n<\/pre>\n<p><strong>\u8f93\u51faascii\u5b57\u7b26 <\/strong><\/p>\n<pre>\r\n\r\n[root@localhost ~]# echo -e \"\\x31\"                       \/\/\u5341\u516d\u8fdb\u5236\u768431\uff0c\u6362\u7b97\u621049\uff0c\u4ee3\u8868\u7684ascii\u5b57\u7b26\u5c31\u662f1\r\n\r\n1\r\n\r\n[root@localhost ~]# \r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>echo [-neE] [arg &#8230;] \u4f7f\u7528\u201c\\f\u201d\u6362\u884c [root@localhost ~]# echo [&hellip;]<\/p>\n","protected":false},"author":317,"featured_media":150269,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[55],"tags":[],"class_list":["post-168991","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\/168991","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\/317"}],"replies":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/comments?post=168991"}],"version-history":[{"count":3,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/168991\/revisions"}],"predecessor-version":[{"id":168997,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/168991\/revisions\/168997"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media\/150269"}],"wp:attachment":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media?parent=168991"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/categories?post=168991"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/tags?post=168991"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}