{"id":17418,"date":"2024-11-18T08:59:40","date_gmt":"2024-11-18T00:59:40","guid":{"rendered":"https:\/\/fwq.ai\/blog\/17418\/"},"modified":"2024-11-18T08:59:40","modified_gmt":"2024-11-18T00:59:40","slug":"linux-read%e5%91%bd%e4%bb%a4%e7%9a%84%e5%ae%8c%e5%85%a8%e4%bb%8b%e7%bb%8d%e5%92%8c%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/17418\/","title":{"rendered":"Linux read\u547d\u4ee4\u7684\u5b8c\u5168\u4ecb\u7ecd\u548c\u4f7f\u7528\u65b9\u6cd5"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/000\/887\/227\/170868728855613.jpg\" class=\"aligncenter\" title=\"Linux read\u547d\u4ee4\u7684\u5b8c\u5168\u4ecb\u7ecd\u548c\u4f7f\u7528\u65b9\u6cd5\u63d2\u56fe\" alt=\"Linux read\u547d\u4ee4\u7684\u5b8c\u5168\u4ecb\u7ecd\u548c\u4f7f\u7528\u65b9\u6cd5\u63d2\u56fe\" \/><\/p>\n<p>\u6807\u9898\uff1aLinux read\u547d\u4ee4\u8be6\u89e3\u53ca\u7528\u6cd5\u6307\u5357<\/p>\n<p>\u5728Linux\u7cfb\u7edf\u4e2d\uff0cread\u547d\u4ee4\u662f\u4e00\u4e2a\u975e\u5e38\u5e38\u7528\u7684\u547d\u4ee4\uff0c\u7528\u4e8e\u4ece\u6807\u51c6\u8f93\u5165\u6216\u6587\u4ef6\u4e2d\u8bfb\u53d6\u6570\u636e\uff0c\u5e76\u5c06\u6570\u636e\u8d4b\u503c\u7ed9\u53d8\u91cf\u3002\u5b83\u7684\u7528\u6cd5\u7b80\u5355\u7075\u6d3b\uff0c\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u5b9e\u73b0\u5404\u79cd\u4ea4\u4e92\u5f0f\u7684\u64cd\u4f5c\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecdread\u547d\u4ee4\u7684\u8bed\u6cd5\u3001\u53c2\u6570\u4ee5\u53ca\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u7406\u89e3\u548c\u638c\u63e1\u8be5\u547d\u4ee4\u3002<\/p>\n<h3>\u4e00\u3001read\u547d\u4ee4\u8bed\u6cd5\u53ca\u53c2\u6570<\/h3>\n<p>read\u547d\u4ee4\u7684\u57fa\u672c\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre>read [\u9009\u9879] [\u53d8\u91cf\u540d]<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u5e38\u7528\u7684\u9009\u9879\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>-p prompt\uff1a\u6307\u5b9a\u8bfb\u53d6\u6570\u636e\u65f6\u7684\u63d0\u793a\u7b26\u3002<\/li>\n<li>-r\uff1a\u9632\u6b62read\u547d\u4ee4\u5bf9\u53cd\u659c\u6760\u5b57\u7b26\u8fdb\u884c\u8f6c\u4e49\u3002<\/li>\n<li>-t timeout\uff1a\u8bbe\u7f6e\u8d85\u65f6\u65f6\u95f4\uff0c\u5355\u4f4d\u4e3a\u79d2\u3002<\/li>\n<li>-n nchars\uff1a\u6307\u5b9a\u8bfb\u53d6\u7684\u5b57\u7b26\u6570\u3002<\/li>\n<li>-s\uff1a\u9759\u9ed8\u6a21\u5f0f\uff0c\u4e0d\u663e\u793a\u7528\u6237\u8f93\u5165\u5185\u5bb9\u3002<\/li>\n<li>-u fd\uff1a\u4ece\u6587\u4ef6\u63cf\u8ff0\u7b26fd\u4e2d\u8bfb\u53d6\u6570\u636e\u3002<\/li>\n<\/ul>\n<h3>\u4e8c\u3001read\u547d\u4ee4\u793a\u4f8b<\/h3>\n<ol>\n<li>\u8bfb\u53d6\u7528\u6237\u8f93\u5165\u5e76\u5c06\u5176\u8d4b\u503c\u7ed9\u53d8\u91cf\uff1a<\/li>\n<\/ol>\n<pre>read -p \"\u8bf7\u8f93\u5165\u60a8\u7684\u59d3\u540d\uff1a\" name\necho \"\u60a8\u7684\u59d3\u540d\u662f\uff1a$name\"<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u8fd0\u884c\u4e0a\u8ff0\u4ee3\u7801\u4f1a\u63d0\u793a\u7528\u6237\u8f93\u5165\u59d3\u540d\uff0c\u5e76\u5c06\u8f93\u5165\u7684\u503c\u8d4b\u7ed9\u53d8\u91cfname\uff0c\u7136\u540e\u8f93\u51fa\u59d3\u540d\u7684\u503c\u3002<\/p>\n<ol>\n<li>\u8bfb\u53d6\u591a\u4e2a\u6570\u636e\u5e76\u5206\u522b\u8d4b\u503c\u7ed9\u591a\u4e2a\u53d8\u91cf\uff1a<\/li>\n<\/ol>\n<pre>read -p \"\u8bf7\u8f93\u5165\u60a8\u7684\u59d3\u540d\u548c\u5e74\u9f84\uff1a\" name age\necho \"\u60a8\u7684\u59d3\u540d\u662f\uff1a$name\uff0c\u5e74\u9f84\u662f\uff1a$age\"<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u8fd9\u6bb5\u4ee3\u7801\u4f1a\u63d0\u793a\u7528\u6237\u8f93\u5165\u59d3\u540d\u548c\u5e74\u9f84\uff0c\u7136\u540e\u5206\u522b\u5c06\u8f93\u5165\u7684\u503c\u8d4b\u7ed9\u53d8\u91cfname\u548cage\uff0c\u5e76\u8f93\u51fa\u5b83\u4eec\u7684\u503c\u3002<\/p>\n<ol>\n<li>\u4f7f\u7528\u5faa\u73af\u8bfb\u53d6\u591a\u884c\u6570\u636e\uff1a<\/li>\n<\/ol>\n<pre>echo \"\u8bf7\u8f93\u5165\u4e09\u4e2a\u559c\u6b22\u7684\u6c34\u679c\uff1a\"\ncount=0\nwhile [ $count -lt 3 ]\ndo\n    read fruit\n    echo \"\u60a8\u559c\u6b22\u7684\u6c34\u679c\u4e4b\u4e00\u662f\uff1a$fruit\"\n    ((count++))\ndone<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u8fd9\u6bb5\u4ee3\u7801\u4f1a\u5faa\u73af\u63d0\u793a\u7528\u6237\u8f93\u5165\u4e09\u79cd\u559c\u6b22\u7684\u6c34\u679c\uff0c\u5e76\u4f9d\u6b21\u8f93\u51fa\u7528\u6237\u8f93\u5165\u7684\u6bcf\u79cd\u6c34\u679c\u3002<\/p>\n<ol>\n<li>\u8bbe\u7f6e\u8d85\u65f6\u65f6\u95f4\uff1a<\/li>\n<\/ol>\n<pre>if read -t 5 -p \"\u8bf7\u8f93\u5165\u60a8\u7684\u5bc6\u7801\uff1a\" password\nthen\n    echo \"\u5bc6\u7801\u8f93\u5165\u6210\u529f\uff1a$password\"\nelse\n    echo \"\u5bc6\u7801\u8f93\u5165\u8d85\u65f6\"\nfi<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u8fd9\u6bb5\u4ee3\u7801\u4f1a\u57285\u79d2\u5185\u7b49\u5f85\u7528\u6237\u8f93\u5165\u5bc6\u7801\uff0c\u5982\u679c\u8d85\u65f6\u5219\u8f93\u51fa\u201c\u5bc6\u7801\u8f93\u5165\u8d85\u65f6\u201d\uff0c\u5426\u5219\u8f93\u51fa\u7528\u6237\u8f93\u5165\u7684\u5bc6\u7801\u3002<\/p>\n<h3>\u4e09\u3001\u603b\u7ed3<\/h3>\n<p>\u901a\u8fc7\u4ee5\u4e0a\u793a\u4f8b\uff0c\u8bfb\u8005\u53ef\u4ee5\u66f4\u52a0\u6df1\u5165\u5730\u7406\u89e3Linux\u4e2dread\u547d\u4ee4\u7684\u7528\u6cd5\u53ca\u7075\u6d3b\u6027\u3002read\u547d\u4ee4\u5728\u7f16\u5199\u811a\u672c\u3001\u5b9e\u73b0\u4ea4\u4e92\u5f0f\u529f\u80fd\u65f6\u90fd\u975e\u5e38\u6709\u7528\uff0c\u80fd\u591f\u7b80\u5316\u7528\u6237\u8f93\u5165\u6570\u636e\u7684\u64cd\u4f5c\u6d41\u7a0b\u3002\u5e0c\u671b\u672c\u6587\u80fd\u591f\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u638c\u63e1read\u547d\u4ee4\uff0c\u5e76\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u53d1\u6325\u5176\u4f5c\u7528\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fLinux read\u547d\u4ee4\u7684\u5b8c\u5168\u4ecb\u7ecd\u548c\u4f7f\u7528\u65b9\u6cd5\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6807\u9898\uff1aLinux read\u547d\u4ee4\u8be6\u89e3\u53ca\u7528\u6cd5\u6307\u5357 \u5728Linux\u7cfb\u7edf\u4e2d\uff0cread\u547d\u4ee4\u662f\u4e00\u4e2a\u975e\u5e38\u5e38\u7528\u7684\u547d\u4ee4\uff0c\u7528\u4e8e\u4ece\u6807\u51c6\u8f93\u5165\u6216\u6587\u4ef6\u4e2d\u8bfb\u53d6\u6570\u636e\uff0c\u5e76\u5c06\u6570\u636e\u8d4b\u503c\u7ed9\u53d8\u91cf\u3002\u5b83\u7684\u7528\u6cd5\u7b80\u5355\u7075\u6d3b\uff0c\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u5b9e\u73b0\u5404\u79cd\u4ea4\u4e92\u5f0f\u7684\u64cd\u4f5c\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecdread\u547d\u4ee4\u7684\u8bed\u6cd5\u3001\u53c2\u6570\u4ee5\u53ca\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u7406\u89e3\u548c\u638c\u63e1\u8be5\u547d\u4ee4\u3002 \u4e00\u3001read\u547d\u4ee4\u8bed\u6cd5\u53ca\u53c2\u6570 read\u547d\u4ee4\u7684\u57fa\u672c\u8bed\u6cd5\u5982\u4e0b\uff1a read [\u9009\u9879] [\u53d8\u91cf\u540d] \u767b\u5f55\u540e\u590d\u5236 \u5e38\u7528\u7684\u9009\u9879\u5305\u62ec\uff1a -p prompt\uff1a\u6307\u5b9a\u8bfb\u53d6\u6570\u636e\u65f6\u7684\u63d0\u793a\u7b26\u3002 -r\uff1a\u9632\u6b62read\u547d\u4ee4\u5bf9\u53cd\u659c\u6760\u5b57\u7b26\u8fdb\u884c\u8f6c\u4e49\u3002 -t timeout\uff1a\u8bbe\u7f6e\u8d85\u65f6\u65f6\u95f4\uff0c\u5355\u4f4d\u4e3a\u79d2\u3002 -n nchars\uff1a\u6307\u5b9a\u8bfb\u53d6\u7684\u5b57\u7b26\u6570\u3002 -s\uff1a\u9759\u9ed8\u6a21\u5f0f\uff0c\u4e0d\u663e\u793a\u7528\u6237\u8f93\u5165\u5185\u5bb9\u3002 -u fd\uff1a\u4ece\u6587\u4ef6\u63cf\u8ff0\u7b26fd\u4e2d\u8bfb\u53d6\u6570\u636e\u3002 \u4e8c\u3001read\u547d\u4ee4\u793a\u4f8b \u8bfb\u53d6\u7528\u6237\u8f93\u5165\u5e76\u5c06\u5176\u8d4b\u503c\u7ed9\u53d8\u91cf\uff1a read -p &#8220;\u8bf7\u8f93\u5165\u60a8\u7684\u59d3\u540d\uff1a&#8221; name echo &#8220;\u60a8\u7684\u59d3\u540d\u662f\uff1a$name&#8221; \u767b\u5f55\u540e\u590d\u5236 \u8fd0\u884c\u4e0a\u8ff0\u4ee3\u7801\u4f1a\u63d0\u793a\u7528\u6237\u8f93\u5165\u59d3\u540d\uff0c\u5e76\u5c06\u8f93\u5165\u7684\u503c\u8d4b\u7ed9\u53d8\u91cfname\uff0c\u7136\u540e\u8f93\u51fa\u59d3\u540d\u7684\u503c\u3002 \u8bfb\u53d6\u591a\u4e2a\u6570\u636e\u5e76\u5206\u522b\u8d4b\u503c\u7ed9\u591a\u4e2a\u53d8\u91cf\uff1a read -p &#8220;\u8bf7\u8f93\u5165\u60a8\u7684\u59d3\u540d\u548c\u5e74\u9f84\uff1a&#8221; name age echo &#8220;\u60a8\u7684\u59d3\u540d\u662f\uff1a$name\uff0c\u5e74\u9f84\u662f\uff1a$age&#8221; \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u6bb5\u4ee3\u7801\u4f1a\u63d0\u793a\u7528\u6237\u8f93\u5165\u59d3\u540d\u548c\u5e74\u9f84\uff0c\u7136\u540e\u5206\u522b\u5c06\u8f93\u5165\u7684\u503c\u8d4b\u7ed9\u53d8\u91cfname\u548cage\uff0c\u5e76\u8f93\u51fa\u5b83\u4eec\u7684\u503c\u3002 \u4f7f\u7528\u5faa\u73af\u8bfb\u53d6\u591a\u884c\u6570\u636e\uff1a echo &#8220;\u8bf7\u8f93\u5165\u4e09\u4e2a\u559c\u6b22\u7684\u6c34\u679c\uff1a&#8221; count=0 while [ $count -lt 3 ] do read fruit echo &#8220;\u60a8\u559c\u6b22\u7684\u6c34\u679c\u4e4b\u4e00\u662f\uff1a$fruit&#8221; [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-17418","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/17418","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=17418"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/17418\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=17418"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=17418"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=17418"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}