{"id":545,"date":"2024-04-19T00:02:50","date_gmt":"2024-04-18T16:02:50","guid":{"rendered":"https:\/\/levin.ink\/?p=545"},"modified":"2024-04-21T00:12:37","modified_gmt":"2024-04-20T16:12:37","slug":"os%e5%ae%9e%e9%aa%8c-shell-%e7%a8%8b%e5%ba%8f","status":"publish","type":"post","link":"https:\/\/levin.ink\/?p=545","title":{"rendered":"OS\u5b9e\u9a8c-Shell \u7a0b\u5e8f"},"content":{"rendered":"

\u5f15<\/h1>\n

OS\u5b9e\u9a8c\u8bfe\u5b9e\u9a8c\u4e00\uff0c\u4ec5\u505a\u5b66\u4e60\u7528\uff0c\u4ec5\u4f9b\u53c2\u8003\uff0c\u672c\u6587\u8bb0\u5f55\u4e00\u4e9b\u5fc3\u5f97
\ngithub\uff1ahttps:\/\/github.com\/LeviningU\/LinuxShell-ysh<\/a><\/p>\n

jobs fg bg ctrl+z ctrl+c ctrl+\\ &<\/h1>\n

\u8fdb\u7a0b\u7ba1\u7406\uff0c\u521b\u5efa\u5b50\u8fdb\u7a0b\uff0c\u7b97\u662f\u7b2c\u4e8c\u6b21\u63a5\u89e6\u591a\u7ebf\u7a0b\uff08\u83dc\uff09
\n\u547d\u4ee4 \u52a0\u4e2a &\uff0c\u540e\u53f0\u8fd0\u884c\uff0c\u8f93\u51fa\u4f1a\u5728\u524d\u53f0\u663e\u793a
\njobs\uff1a\u67e5\u770b\u8fdb\u7a0b
\nfg\uff1a\u5c06\u540e\u53f0\u8fdb\u7a0b\u653e\u5230\u524d\u53f0\u8fd0\u884c
\nctrl+z\uff1a\u5c06\u524d\u53f0\u547d\u4ee4\u6682\u505c
\nbg\uff1a\u5c06\u6682\u505c\u7684\u8fdb\u7a0b\u5728\u540e\u53f0\u7ee7\u7eed\u8fd0\u884c
\nctrl+c\uff1a\u4e2d\u6b62\u524d\u53f0\u8fdb\u7a0b
\nctrl+\\\uff1a\u53e6\u4e00\u79cd\u4e2d\u6b62\uff08\uff1f\uff09\u672a\u8fc7\u591a\u4e86\u89e3<\/p>\n

\u7ba1\u9053\u4e0e\u91cd\u5b9a\u5411<\/h1>\n

\u7ba1\u9053\u547d\u4ee4\u5176\u5b9e\u4e5f\u76f8\u5f53\u4e8e\u91cd\u5b9a\u5411\u547d\u4ee4\uff0c\u90fd\u662f\u5c06\u6539\u53d8\u547d\u4ee4\u7684\u6807\u51c6\u8f93\u5165\u6d41\u548c\u6807\u51c6\u8f93\u51fa\u6d41
\n\u91cd\u5b9a\u5411\u547d\u4ee4
\n\u201c>\u201d\uff1a\u5c06\u6807\u51c6\u8f93\u51fa\u6d41\u8f93\u51fa\u5230\u4e00\u4e2a\u6587\u4ef6\u4e2d\uff0c\u8986\u76d6\u539f\u5185\u5bb9
\n\u201c>>\u201d\uff1a\u5c06\u6807\u51c6\u8f93\u51fa\u6d41\u8f93\u51fa\u5230\u4e00\u4e2a\u6587\u4ef6\u4e2d\uff0c\u8ffd\u52a0\u5230\u539f\u5185\u5bb9\u540e
\n\u201c<\u201d\uff1a\u5c06\u6807\u51c6\u8f93\u5165\u6d41\u66f4\u6539\u4e3a\u4e00\u4e2a\u6587\u4ef6
\n\u7ba1\u9053\u547d\u4ee4
\n\u201c|\u201d\uff1a\u6b64\u7b26\u53f7\u8fde\u63a5\u7684\u5de6\u53f3\u4e24\u6761\u547d\u4ee4\uff0c\u5de6\u8fb9\u547d\u4ee4\u7684\u8f93\u51fa\u6d41\u4f1a\u8f93\u51fa\u5230\u53f3\u8fb9\u547d\u4ee4\u7684\u8f93\u5165\u6d41\uff08\u5f53\u7136\u5e76\u4e0d\u662f\u76f4\u63a5\u63a5\u4e0a\uff09\uff08\u5e38\u7528\u4e8exxx | grep\u83b7\u53d6\u67d0\u4e9b\u547d\u4ee4\u8f93\u51fa\u4e2d\u60f3\u8981\u7684\u4fe1\u606f\uff09\uff0c\u53ef\u4ee5\u91cd\u590d\u63a5\u7ba1\u9053\u3002<\/p>\n

\u77e5\u9053\u4ee5\u4e0a\u4e24\u4e2a\u4e1c\u4e1c\u4e4b\u540e\u5c31\u53ef\u4ee5\u73a9\u82b1\u6d3b\u4e86\uff08bushi cat < main.cpp | cat > main.cpp \uff09\u53e4\u5e0c\u814a\u638c\u63a7\u8f93\u5165\u8f93\u51fa\u7684\u795e\u3002<\/p>\n

\u4fe1\u53f7\u673a\u5236\u4ee5\u53ca\u5e26\u6765\u7684\u95ee\u9898\u548c\u4e2a\u4eba\u5904\u7406\u65b9\u5f0f<\/h1>\n

\u53ef\u4ee5\u4e3a\u6307\u5b9a\u7684\u4e2d\u65ad\u8bbe\u7f6e\u5904\u7406\u51fd\u6570\uff0c\u6bd4\u5982\u524d\u9762\u63d0\u5230\u7684ctrl+z\uff0cctrl+c\u4e2d\u65ad\uff0c
\n\u53ef\u4ee5\u6355\u83b7\u8be5\u4e2d\u65ad\u81ea\u5df1\u5904\u7406\uff0c\u5f53\u7136\u4e5f\u53ef\u4ee5\u5ffd\u7565
\n\u63a5\u6536\u5230\u8fd9\u4e9b\u4fe1\u53f7\u65f6\uff0c\u7a0b\u5e8f\u4f1a\u505c\u4e0b\u5f53\u524d\u8bed\u53e5\u7684\u6267\u884c\uff0c\u53bb\u6267\u884c\u4fe1\u53f7\u5904\u7406\u51fd\u6570\uff0c\u7136\u540e\u4ece\u505c\u4e0b\u7684\u4f4d\u7f6e\u7684\u4e0b\u4e00\u6761\u547d\u4ee4\uff08\u95ee\u9898\u7684\u5f00\u59cb\uff0c\u547d\u8fd0\u7684\u9f7f\u8f6e\u5f00\u59cb\u8f6c\u52a8\uff09\u5f00\u59cb\u6267\u884c\u3002\u8fd9\u5f88\u597d\u5bf9\u5427\uff0c\u4e0d\u8fd9\u4e0d\u597d\u3002
\n\u5728\u6b63\u5e38\u7684\u7a0b\u5e8f\u8fd0\u884c\u4e2d\uff0c\u6709\u4e24\u4e2a\u5730\u65b9\uff0c\u7b2c\u4e00\u4e2a\u5730\u65b9\u662f\u524d\u53f0\u547d\u4ee4\u6267\u884c\u65f6\uff0c\u7236\u8fdb\u7a0b\u7b49\u5f85\u5b50\u8fdb\u7a0b\u65f6\u7684waitpid\uff0c\u7b2c\u4e8c\u4e2a\u5730\u65b9\u662f\u7b49\u5f85\u7528\u6237\u8f93\u5165\u65f6\u7684getline\uff0c\u5f53\u7a0b\u5e8f\u5728\u8fd9\u4e24\u4e2a\u5730\u65b9\u7b49\u5f85\u65f6\uff0c\u6536\u5230\u4e2d\u65ad\u4fe1\u53f7\uff0c\u8dd1\u53bb\u6267\u884c\u5904\u7406\u51fd\u6570\uff0c\u56de\u6765\u540e\uff0c\u8bf6\uff0c\u6211\u4e0d\u7b49\u4e86\uff0c\u6211\u8fd0\u884c\u540e\u9762\u7684\u53bb\u4e86\u3002
\n\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u5c31\u641e\u5faa\u73af\uff0c\u6b63\u5e38\u7b49\u5230\u7ed3\u679c\u540e\u5c31\u9000\u51fa\uff0c\u88ab\u4e2d\u65ad\u7684\u60c5\u51b5\u5c31\u5faa\u73af\u7ee7\u7eed\u7ed9\u7237\u7b49\u3002<\/p>\n

\/\/waitpid\u6b63\u5e38\u8fd4\u56de\u7b49\u5f85\u7684pid\uff0c\u5e76\u4e14\u4fdd\u8bc1ctrl+z\u6216ctrl+c\u4e2d\u65ad\uff08\u66f4\u6539cur_pid\uff09\u6b63\u5e38\u7ed3\u675f\u7b49\u5f85\nwhile(waitpid(cur_pid, NULL, 0) != cur_pid && cur_pid != 0);\ndo\n{\n    std::cin.clear();\n}\/\/getline\u88ab\u4e2d\u65ad\u4f1a\u8fd4\u56de\u4e2a\u5565\u6765\u7740\uff0c\u53cd\u6b63\u4f1a\u7ee7\u7eed\u5faa\u73af\nwhile (!std::getline(std::cin, input));<\/code><\/pre>\n
\u8fd8\u6709\u5565\uff0c\u60f3\u5230\u518d\u8865\u5145<\/h1>\n","protected":false},"excerpt":{"rendered":"
\u5f15 OS\u5b9e\u9a8c\u8bfe\u5b9e\u9a8c\u4e00\uff0c\u4ec5\u505a\u5b66\u4e60\u7528\uff0c\u4ec5\u4f9b\u53c2\u8003\uff0c\u672c\u6587\u8bb0\u5f55\u4e00\u4e9b\u5fc3\u5f97 github\uff1ahttps:\/\/github.co […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-545","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/levin.ink\/index.php?rest_route=\/wp\/v2\/posts\/545","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/levin.ink\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/levin.ink\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/levin.ink\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/levin.ink\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=545"}],"version-history":[{"count":3,"href":"https:\/\/levin.ink\/index.php?rest_route=\/wp\/v2\/posts\/545\/revisions"}],"predecessor-version":[{"id":552,"href":"https:\/\/levin.ink\/index.php?rest_route=\/wp\/v2\/posts\/545\/revisions\/552"}],"wp:attachment":[{"href":"https:\/\/levin.ink\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=545"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/levin.ink\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=545"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/levin.ink\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=545"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}