{"id":432,"date":"2022-07-31T13:58:18","date_gmt":"2022-07-31T05:58:18","guid":{"rendered":"http:\/\/fanaticboy.com\/?p=432"},"modified":"2022-09-06T20:11:46","modified_gmt":"2022-09-06T12:11:46","slug":"%e5%88%9d%e8%af%86shell%e8%84%9a%e6%9c%ac","status":"publish","type":"post","link":"https:\/\/fanaticboy.com\/?p=432","title":{"rendered":"\u521d\u8bc6shell\u811a\u672c"},"content":{"rendered":"\n<p>\u200b<\/p>\n\n\n\n<p>\u5f15\u8a00\uff1a\u73b0\u5728\u8d8a\u6765\u8d8a\u591a\u7684\u4e2a\u4eba\u548c\u4f01\u4e1a\u5728\u4f7f\u7528linux\u64cd\u4f5c\u7cfb\u7edf\uff0c\u6240\u4ee5\u4e00\u4e9b\u57fa\u672c\u7684\u547d\u4ee4\u90fd\u662f\u4e86\u89e3\u7684\u3002\u90a3\u4e48\u5982\u679c\u60f3\u51cf\u5c11\u624b\u52a8\u7684\u8f93\u5165\u53ef\u4ee5\u5417\u3002\u7b54\u6848\u662f\u53ef\u4ee5\u7684\u3002\u7528\u4ec0\u4e48\u65b9\u6cd5\u5462\uff0c\u7b54\u6848\u5c31\u53ef\u4ee5\u5199\u811a\u672c\uff0c\u6700\u65b9\u4fbf\u7684\u5c31\u662flinux\u81ea\u5e26\u7684shell\u811a\u672c\u3002\u63a5\u4e0b\u6765\u5c31\u8ddf\u7740\u6211\u4e00\u8d77\uff0c\u8ba4\u8bc6\u3001\u5b66\u4e60\u5e76\u4f7f\u7528shell\u5b9e\u73b0\u57fa\u672c\u7684\u64cd\u4f5c\uff0c\u8ba9\u6211\u4eec\u5f00\u59cb\u5427\uff01<\/p>\n\n\n\n<p>\u65e2\u7136\u662f\u811a\u672c\uff0c\u90a3\u4e48\u5fc5\u7136\u6709\u89e3\u91ca\u5668\u3002shell\u7684\u89e3\u91ca\u5668\u5f88\u591a\uff0c\u54b1\u4eec\u54b1\u4eec\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u67e5\u770b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>cat&nbsp;\/etc\/shells<\/code><\/pre>\n\n\n\n<p>\u7ed3\u679c\u5982\u4e0b\u56fe\u6240\u793a<\/p>\n\n\n\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/img_convert\/b9a78d4083f5c83776aa424e7fcef5d3.png\" alt=\"\">\u200b<\/p>\n\n\n\n<p>\u54b1\u4eec\u4f7f\u7528\u5176\u4e2d\u4e00\u79cd\u5c31\u53ef\u4ee5\u4e86\uff0c\u5177\u4f53\u600e\u4e48\u4f7f\u7528\u5462\u63a5\u4e0b\u6765\u4f1a\u63d0\u5230<\/p>\n\n\n\n<p>\u4e0b\u9762\u5f00\u59cb\u7f16\u8f91\u811a\u672c\u5e76\u4e14\u6307\u5b9a\u89e3\u91ca\u5668<\/p>\n\n\n\n<p>\u4f7f\u7528\u547d\u4ee4<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>vi test1.sh<\/code><\/pre>\n\n\n\n<p>\u8fdb\u5165\u91cc\u9762\u7f16\u8f91<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#\uff01\/bin\/bash\necho \"hello world\"<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d#\uff01\/bin\/bash \u5c31\u662f\u6307\u5b9a\u89e3\u91ca\u5668\u7684\u4f5c\u7528\u4e86<\/p>\n\n\n\n<p>\u53ef\u4ee5\u6267\u884c\u4e86\uff0c\u4f46\u5728\u6267\u884c\u4e4b\u524d\u8981\u7ed9\u8fd9\u4e2a\u6587\u4ef6\u8d4b\u4e00\u4e2a\u6267\u884c\u6743\u9650<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>chmod&nbsp;+x&nbsp;test1.sh<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<p>\u63a5\u4e0b\u6765\u6267\u884c<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>.\/test1.sh<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/img-blog.csdnimg.cn\/img_convert\/b7d2188449532e0ee949de7556e4d7cb.png\">\u200b<img loading=\"lazy\" decoding=\"async\" src=\"blob:http:\/\/fanaticboy.com\/f84e795b-512f-4709-8d52-92ce84da8592\" width=\"15\" height=\"15\">\u7f16\u8f91<\/p>\n\n\n\n<p>\u8fd9\u4e2a\u5c31\u662f\u6700\u7b80\u5355\u7684shell\u811a\u672c\u4e86\uff0c\u4ec5\u4ec5\u662f\u8f93\u51fa\u4e86hello world<\/p>\n\n\n\n<p>\u4ee5\u540e\u5927\u5bb6\u63a5\u89e6\u66f4\u591a\u7684\u53ef\u80fd\u662f$\uff0c\u90a3\u4e48\u5173\u4e8e\u5b83\u4e00\u4e9b\u5e38\u89c1\u7684\u7ec4\u5408\u4ee5\u53ca\u610f\u601d\u6211\u5728\u8fd9\u91cc\u5217\u4e3e\u51fa\u6765\uff0c\u4ee5\u540e\u9047\u5230\u7684\u65f6\u5019\u4f1a\u7528\u7684\u5230\u7684<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>$0\uff1aShell \u7684\u547d\u4ee4\u672c\u8eab<\/li><li>$1\u52309\uff1a\u8868\u793a Shell \u7684\u7b2c\u51e0\u4e2a\u53c2\u6570<\/li><li>$? \uff1a\u663e\u793a\u6700\u540e\u547d\u4ee4\u7684\u6267\u884c\u60c5\u51b5<\/li><li>$#\uff1a\u4f20\u9012\u5230\u811a\u672c\u7684\u53c2\u6570\u4e2a\u6570<\/li><li>$$\uff1a\u811a\u672c\u8fd0\u884c\u7684\u5f53\u524d\u8fdb\u7a0b ID \u53f7&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/li><li>$*\uff1a\u4ee5\u4e00\u4e2a\u5355\u5b57\u7b26\u4e32\u663e\u793a\u6240\u6709\u5411\u811a\u672c\u4f20\u9012\u7684\u53c2\u6570&nbsp;&nbsp;<\/li><li>$!\uff1a\u540e\u53f0\u8fd0\u884c\u7684\u6700\u540e\u4e00\u4e2a\u8fdb\u7a0b\u7684 ID \u53f7&nbsp;&nbsp;<\/li><li>$-\uff1a\u663e\u793a Shell \u4f7f\u7528\u7684\u5f53\u524d\u9009\u9879<\/li><\/ul>\n\n\n\n<p>\u5927\u5bb6\u53ef\u4ee5\u5c1d\u8bd5\u7740\u53bb\u6572\u4e00\u6572\u8fd9\u4e9b\u547d\u4ee4\u8f93\u51fa\u4e00\u4e0b\uff0c\u6211\u8fd9\u91cc\u7ed9\u5927\u5bb6\u5148\u793a\u8303\u4e00\u4e0b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>echo&nbsp;$0<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/img-blog.csdnimg.cn\/img_convert\/fc87d51eb8b52bc02b04bd89cb9ad1f4.png\">\u200b<img loading=\"lazy\" decoding=\"async\" src=\"blob:http:\/\/fanaticboy.com\/446eeb41-f97d-4c17-8811-76f904c41e19\" width=\"15\" height=\"15\">\u7f16\u8f91<\/p>\n\n\n\n<p>\u4e00\u4e9b\u7b54\u7591<\/p>\n\n\n\n<p>\u95ee\uff1a\u53ef\u4ee5\u4e0d\u6307\u5b9a\u89e3\u91ca\u5668\u5417<\/p>\n\n\n\n<p>\u7b54\uff1a\u53ef\u4ee5\uff0c\u4e0d\u6307\u5b9a\u7684\u8bdd\uff0c\u90a3\u4e48\u5c31\u662f\u9ed8\u8ba4\u7684\u89e3\u91ca\u5668\u53bb\u6267\u884c\u4e86\uff0c\u5373\/bin\/bash<\/p>\n\n\n\n<p>\u95ee\uff1a\u9ed8\u8ba4\u7684\u89e3\u91ca\u5668\u662f\u4ec0\u4e48\u5462<\/p>\n\n\n\n<p>\u7b54\uff1a\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>echo&nbsp;$SHEL<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/img-blog.csdnimg.cn\/img_convert\/418f0d48a76c876969564b41af0af7bf.png\">\u200b<img loading=\"lazy\" decoding=\"async\" src=\"blob:http:\/\/fanaticboy.com\/60dcbbc1-89f7-4705-a04d-2a80e9d567d3\" width=\"15\" height=\"15\">\u7f16\u8f91<\/p>\n\n\n\n<p>\u95ee\uff1a\u8fd8\u6709\u5176\u4ed6\u7684\u6267\u884c\u65b9\u5f0f\u5417<\/p>\n\n\n\n<p>\u7b54\uff1a\u6709\u7684\uff0c\u6b64\u5916\u8fd8\u6709\u4e24\u79cd\u65b9\u5f0f\uff0c\u5927\u5bb6\u6309\u7167\u81ea\u5df1\u7684\u4e60\u60ef\u6765<\/p>\n\n\n\n<p>\u7b2c\u4e00\u4e2a\u5c31\u662f\u6267\u884c\u89e3\u91ca\u5668\uff0c\u6587\u4ef6\u540d\u5f53\u53c2\u6570<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/bin\/bash&nbsp;test1.sh<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<p>\u8fd9\u79cd\u65b9\u5f0f\u7684\u8bdd\u6587\u4ef6\u91cc\u9762\u5c31\u6ca1\u6709\u5fc5\u8981\u53bb\u6307\u5b9a\u89e3\u91ca\u5668\u4e86\uff0c\u56e0\u4e3a\u4ee5\u6267\u884c\u89e3\u91ca\u5668\u4e3a\u4e3b<\/p>\n\n\n\n<p>\u7b2c\u4e8c\u4e2a\u5c31\u662fsource\u547d\u4ee4<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>source&nbsp;test1.sh<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<p>\u4ee5\u4e0a\u4e24\u4e2a\u6267\u884c\u7684\u65b9\u5f0f\u90fd\u4e0d\u7528\u7ed9\u811a\u672c\u8d4b\u4e00\u4e2a\u6267\u884c\u6743\u9650\u4e86\uff0c\u56e0\u4e3a\u6267\u884c\u7684\u4e0d\u662f\u6587\u4ef6\u672c\u8eab<\/p>\n\n\n\n<p>\u95ee\uff1a\u8fd9\u51e0\u4e2a\u6267\u884c\u7684\u65b9\u5f0f\u6709\u4ec0\u4e48\u533a\u522b\u5417<\/p>\n\n\n\n<p>\u7b54\uff1a\u662f\u6709\u533a\u522b\u7684\uff0csource\u7684\u8bdd\u53ef\u4ee5\u7406\u89e3\u4e3a\u987a\u5e8f\u7684\u6267\u884c\u547d\u4ee4\uff0c\u73b0\u5728\u663e\u793a\u7684\u6700\u7ec8\u7ed3\u679c\uff0c\u540c\u65f6\u76ee\u5f55\u662f\u6700\u7ec8\u6267\u884c\u7684\u6240\u5728\u7684\u76ee\u5f55\uff0c\u53e6\u5916\u4e24\u4e2a\u7684\u8bdd\u53ef\u4ee5\u8fd9\u4e48\u7406\u89e3\uff0c \u65b0\u8d77\u4e86\u4e00\u4e2a\u8fdb\u7a0b\uff0c\u5f53\u524d\u548c\u6267\u884c\u73af\u5883\u72ec\u7acb\uff0c\u5bf9\u5f53\u524d\u6ca1\u6709\u5f71\u54cd\u53ef\u4ee5\u4e3e\u4e00\u4e2a\u4f8b\u5b50\u770b\u4e00\u4e0b<\/p>\n\n\n\n<p>\u65b0\u5efa\u4e00\u4e2atest2.sh\u7684\u6587\u4ef6\uff0c\u7136\u540e\u91cc\u9762\u5185\u5bb9\u4e3a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><code>cd \/<\/code>\n<code>cd&nbsp;~<\/code><\/pre>\n\n\n\n<p>\u76f4\u63a5\u89e3\u91ca\u5668\u6267\u884c<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sh&nbsp;test2.sh<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<p>&nbsp;\u7136\u540epwd\u4e00\u4e0b\uff0c\u4f60\u4f1a\u53d1\u73b0\u8def\u5f84\u5e76\u6ca1\u6709\u6539\u53d8<\/p>\n\n\n\n<p>\u90a3\u4e48source\u5462<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>source test2.sh<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<p>\u8fd9\u4e2a\u65f6\u5019\u4f1a\u53d1\u73b0\u8def\u5f84\u5df2\u7ecf\u6539\u53d8\u4e86\uff0c\u533a\u522b\u7684\u8bdd\u4e5f\u5df2\u7ecf\u5f88\u6e05\u6670\u4e86<\/p>\n\n\n\n<p>\u95ee\uff1a\u6211\u7684\u540e\u7f00\u540d\u5fc5\u987b\u662f.sh\u5417<\/p>\n\n\n\n<p>\u7b54\uff1a\u4e0d\u662f\uff0c\u5728linux\u4e2d\uff0c\u6240\u6709\u7684\u6587\u4ef6\u90fd\u6ca1\u6709\u540e\u7f00\u540d\u7684\u6982\u5ff5\uff0c\u53ef\u4ee5\u8d77\u4efb\u4f55\u7684\u540d\u5b57\uff0c\u54b1\u4eec\u8fd9\u4e48\u8d77\u7684\u539f\u56e0\u5c31\u662f\u65b9\u4fbf\u67e5\u770b\uff0c\u65b9\u4fbf\u7406\u89e3<\/p>\n\n\n\n<p>\u4ee5\u4e0a\u5c31\u662f\u5173\u4e8eshell\u811a\u672c\u7684\u57fa\u672c\u5185\u5bb9\u4e86\uff0c\u63a5\u4e0b\u6765\u4f1a\u6301\u7eed\u66f4\u65b0~ \u200b<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u200b \u5f15\u8a00\uff1a\u73b0\u5728\u8d8a\u6765\u8d8a\u591a\u7684\u4e2a\u4eba\u548c\u4f01\u4e1a\u5728\u4f7f\u7528linux\u64cd\u4f5c\u7cfb\u7edf\uff0c\u6240\u4ee5\u4e00\u4e9b\u57fa\u672c\u7684\u547d\u4ee4\u90fd\u662f\u4e86\u89e3\u7684\u3002\u90a3\u4e48\u5982\u679c\u60f3\u51cf\u5c11\u624b\u52a8\u7684 &#8230; <a title=\"\u521d\u8bc6shell\u811a\u672c\" class=\"read-more\" href=\"https:\/\/fanaticboy.com\/?p=432\" aria-label=\"\u9605\u8bfb \u521d\u8bc6shell\u811a\u672c\">\u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":1,"featured_media":590,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24,25],"tags":[],"class_list":["post-432","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-linux","category-shell"],"_links":{"self":[{"href":"https:\/\/fanaticboy.com\/index.php?rest_route=\/wp\/v2\/posts\/432","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fanaticboy.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fanaticboy.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fanaticboy.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fanaticboy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=432"}],"version-history":[{"count":3,"href":"https:\/\/fanaticboy.com\/index.php?rest_route=\/wp\/v2\/posts\/432\/revisions"}],"predecessor-version":[{"id":592,"href":"https:\/\/fanaticboy.com\/index.php?rest_route=\/wp\/v2\/posts\/432\/revisions\/592"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/fanaticboy.com\/index.php?rest_route=\/wp\/v2\/media\/590"}],"wp:attachment":[{"href":"https:\/\/fanaticboy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=432"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fanaticboy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=432"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fanaticboy.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=432"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}