{"id":1954,"date":"2017-03-22T20:45:56","date_gmt":"2017-03-22T12:45:56","guid":{"rendered":"http:\/\/cn.hostease.com\/xueyuan\/?p=1954"},"modified":"2017-03-22T20:45:56","modified_gmt":"2017-03-22T12:45:56","slug":"bash%e5%91%bd%e4%bb%a4%e4%bc%98%e5%85%88%e7%ba%a7","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/xueyuan\/jishu\/linux\/bash%e5%91%bd%e4%bb%a4%e4%bc%98%e5%85%88%e7%ba%a7\/","title":{"rendered":"Bash\u547d\u4ee4\u4f18\u5148\u7ea7"},"content":{"rendered":"<ol>\n<li>\u4e00. Bash\u7b80\u4ecb<\/li>\n<\/ol>\n<p>\u547d\u4ee4\u89e3\u91ca\u5668\uff0c\u4e5f\u5c31\u662f Bourne Again Shell\uff0c\u8d77\u6e90\u4e8eshell\u3002shell\u4fd7\u79f0\u58f3\uff0c\u5b83\u662f\u6307UNIX\u7cfb\u7edf\u4e0b\u7684\u4e00\u4e2a\u547d\u4ee4\u89e3\u6790\u5668\uff1b\u4e3b\u8981\u7528\u4e8e\u7528\u6237\u548c\u7cfb\u7edf\u7684\u4ea4\u4e92\u3002UNIX\u7cfb\u7edf\u4e0a\u6709\u5f88\u591a\u79cdShell\u3002\u9996\u4e2ashell\uff0c\u5373Bourne Shell\uff0c\u4e8e1978\u5e74\u5728V7(AT&amp;T\u7684\u7b2c7\u7248)UNIX\u4e0a\u63a8\u51fa\u3002\u540e\u6765\uff0c\u53c8\u6f14\u53d8\u51faC shell\u3001bash\u7b49\u4e0d\u540c\u7248\u672c\u7684shell\u3002<\/p>\n<p>Bash\u7531\u4e8e\u6613\u7528\u548c\u514d\u8d39\uff0c\u5728\u65e5\u5e38\u5de5\u4f5c\u4e2d\u88ab\u5e7f\u6cdb\u4f7f\u7528\u3002\u540c\u65f6\uff0cBash\u4e5f\u662f\u5927\u591a\u6570Linux\u7cfb\u7edf\u9ed8\u8ba4\u7684Shell\u3002\u5728\u4e00\u822c\u60c5\u51b5\u4e0b\uff0c\u4eba\u4eec\u5e76\u4e0d\u533a\u5206 Bourne Shell \u548c Bourne Again Shell\uff0c\u6240\u4ee5\uff0c\u50cf #!\/bin\/sh\uff0c\u5b83\u540c\u6837\u4e5f\u53ef\u4ee5\u6539\u4e3a#!\/bin\/bash\u3002#!\u544a\u8bc9\u7cfb\u7edf\u5176\u540e\u8def\u5f84\u6240\u6307\u5b9a\u7684\u7a0b\u5e8f\u5373\u662f\u89e3\u91ca\u6b64\u811a\u672c\u6587\u4ef6\u7684Shell\u7a0b\u5e8f\u3002<\/p>\n<ol>\n<li>\u4e8c. \u547d\u4ee4\u7684\u4f18\u5148\u7ea7<\/li>\n<li>\u83b7\u53d6\u4e00\u4e2a\u547d\u4ee4\u6267\u884c\u7684\u4f18\u5148\u7ea7\u522b\uff0c\u81f3\u4e0a\u5f80\u4e0b<\/li>\n<\/ol>\n<p>alias<\/p>\n<p>compound commands<\/p>\n<p>function<\/p>\n<p>build_in<\/p>\n<p>hash<\/p>\n<p>$PATH<\/p>\n<p>error\uff1acommand not found<\/p>\n<ol start=\"2\">\n<li>\u547d\u4ee4\u7684\u5206\u7c7b<\/li>\n<\/ol>\n<p>alias\uff08\u522b\u540d\uff09\uff1a\u662f\u4e3a\u4e86\u7b80\u5316\u8f93\u51fa\u7ed9\u4e00\u4e2a\u957f\u53c2\u6570\u547d\u4ee4\u7684\u6574\u5408\uff0c\u522b\u540d\u7684\u5b9a\u4e49\u65b9\u6cd5 alias la=&#8217;ls -al&#8217; \u53d6\u6d88\u522b\u540d unalias la\uff1b<\/p>\n<p>built_in\uff08\u5185\u90e8\u547d\u4ee4\uff09\uff1abash\u81ea\u5e26\u7684\u547d\u4ee4 \u529f\u80fd\u7b80\u5355,\u5185\u90e8\u547d\u4ee4\u7684\u5e2e\u52a9\u5728builtin(1)\u91cc\uff1b<\/p>\n<p>\u5916\u90e8\u547d\u4ee4\uff1a\u5c31\u662f\u4e00\u4e2a\u5c0f\u7a0b\u5e8f\u5b58\u5728\u4e8e\/bin\/ \/sbin\/ \/usr\/bin \u7b49\u5730\u65b9\u3002<\/p>\n<ol start=\"3\">\n<li>\u547d\u4ee4\u7684\u4f18\u5148\u7ea7\u9a8c\u8bc1<\/li>\n<\/ol>\n<p>a \u9a8c\u8bc1\u522b\u540d\u4f18\u5148\u4e8e\u5185\u90e8\u547d\u4ee4\u548c\u5916\u90e8\u547d\u4ee4<\/p>\n<p>&nbsp;<\/p>\n<p>\u7ed3\u8bba\uff0c\u547d\u4ee4\u7684\u6267\u884c\u641c\u7d22\u987a\u5e8f\uff1a\u522b\u540d (alias\u53ef\u4ee5\u67e5\u770b)\u2014\u2014bash\u5185\u90e8\u547d\u4ee4\u2014\u2014$PATH \u4e2d\u6309\u5192\u53f7\u5206\u5272\u7684\u6bcf\u4e2a\u8def\u5f84\u4e2d\u53bb\u641c\u7d22<br \/>\nb \u9a8c\u8bc1\u522b\u540d\u4f18\u5148\u4e8e\u590d\u5408\u547d\u4ee4\uff08compound command\uff09<\/p>\n<p>&nbsp;<\/p>\n<p>c \u9a8c\u8bc1\u590d\u5408\u547d\u4ee4\u4f18\u5148\u4e8e\u51fd\u6570\uff08function\uff09<\/p>\n<p>&nbsp;<\/p>\n<p>d \u9a8c\u8bc1\u51fd\u6570\u4f18\u5148\u4e8e\u5185\u7f6e\u547d\u4ee4<\/p>\n<p>&nbsp;<\/p>\n<p>\u7ed3\u8bba\uff0c\u547d\u4ee4\u7684\u6267\u884c\u641c\u7d22\u987a\u5e8f\uff1a\u522b\u540d (alias\u53ef\u4ee5\u67e5\u770b)\u2014\u2014\u590d\u5408\u547d\u4ee4\u2014\u2014\u51fd\u6570\u2014\u2014bash\u5185\u90e8\u547d\u4ee4\u2014\u2014$PATH \u4e2d\u6309\u5192\u53f7\u5206\u5272\u7684\u6bcf\u4e2a\u8def\u5f84\u4e2d\u53bb\u641c\u7d22<\/p>\n<p>e \u9a8c\u8bc1hash\u4f18\u5148\u4e8e$PATH<\/p>\n<p>&nbsp;<\/p>\n<p>\u6700\u7ec8\u9a8c\u8bc1\u7ed3\u8bba\u4e3a\uff1a\u547d\u4ee4\u7684\u6267\u884c\u641c\u7d22\u987a\u5e8f\uff1a\u522b\u540d (alias\u53ef\u4ee5\u67e5\u770b)\u2014\u2014\u590d\u5408\u547d\u4ee4\u2014\u2014\u51fd\u6570\u2014\u2014\u5185\u7f6e\u547d\u4ee4\u2014\u2014bash\u5185\u90e8\u547d\u4ee4\u2014\u2014$PATH \u4e2d\u6309\u5192\u53f7\u5206\u5272\u7684\u6bcf\u4e2a\u8def\u5f84\u4e2d\u53bb\u641c\u7d22<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00. Bash\u7b80\u4ecb \u547d\u4ee4\u89e3\u91ca\u5668\uff0c\u4e5f\u5c31\u662f Bourne Again Shell\uff0c\u8d77\u6e90\u4e8eshell\u3002shell\u4fd7\u79f0 &#8230; <a title=\"Bash\u547d\u4ee4\u4f18\u5148\u7ea7\" class=\"read-more\" href=\"https:\/\/cn.hostease.com\/xueyuan\/jishu\/linux\/bash%e5%91%bd%e4%bb%a4%e4%bc%98%e5%85%88%e7%ba%a7\/\" aria-label=\"\u9605\u8bfb Bash\u547d\u4ee4\u4f18\u5148\u7ea7\">\u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[49],"tags":[],"class_list":["post-1954","post","type-post","status-publish","format-standard","hentry","category-linux"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/1954","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/comments?post=1954"}],"version-history":[{"count":1,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/1954\/revisions"}],"predecessor-version":[{"id":1955,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/1954\/revisions\/1955"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/media?parent=1954"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/categories?post=1954"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/tags?post=1954"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}