{"id":96,"date":"2018-09-15T01:06:00","date_gmt":"2018-09-14T17:06:00","guid":{"rendered":"https:\/\/www.wangliguang.cn\/?p=96"},"modified":"2025-08-05T09:58:57","modified_gmt":"2025-08-05T01:58:57","slug":"linux%e5%b8%b8%e7%94%a8%e6%93%8d%e4%bd%9c","status":"publish","type":"post","link":"https:\/\/wangliguang.cn\/?p=96","title":{"rendered":"Linux\u5e38\u7528\u64cd\u4f5c"},"content":{"rendered":"

1\u3001\u76ee\u5f55\u64cd\u4f5c
\n\u4f7f\u7528mkdir\u521b\u5efa\u76ee\u5f55\uff1a<\/p>\n

\n mkdir $HOME\/testFolder\n<\/p><\/blockquote>\n

\u4f7f\u7528cd\u547d\u4ee4\u5207\u6362\u76ee\u5f55<\/p>\n

\n cd $HOME\/testFolder\n<\/p><\/blockquote>\n

\u4f7f\u7528 cd ..\/ \u547d\u4ee4\u5207\u6362\u5230\u4e0a\u4e00\u7ea7\u76ee\u5f55<\/p>\n

\n cd ..\/\n<\/p><\/blockquote>\n

\u4f7f\u7528 mv \u547d\u4ee4\u79fb\u52a8\u76ee\u5f55<\/p>\n

\n mv $HOME\/testFolder \/var\/tmp\n<\/p><\/blockquote>\n

\u4f7f\u7528 rm -rf \u547d\u4ee4\u5220\u9664\u76ee\u5f55<\/p>\n

\n rm -rf \/var\/tmp\/testFolder\n<\/p><\/blockquote>\n

\u4f7f\u7528 ls \u547d\u4ee4\u67e5\u770b \/etc \u76ee\u5f55\u4e0b\u6240\u6709\u6587\u4ef6\u548c\u6587\u4ef6\u5939<\/p>\n

\n ls \/etc\n<\/p><\/blockquote>\n

2\u3001\u6587\u4ef6\u64cd\u4f5c
\n\u4f7f\u7528 touch \u547d\u4ee4\u521b\u5efa\u6587\u4ef6<\/p>\n

\n touch ~\/testFile\n<\/p><\/blockquote>\n

\u6267\u884c ls \u547d\u4ee4, \u53ef\u4ee5\u770b\u5230\u521a\u624d\u65b0\u5efa\u7684 testFile \u6587\u4ef6<\/p>\n

\n ls ~\n<\/p><\/blockquote>\n

\u4f7f\u7528 cp \u547d\u4ee4\u590d\u5236\u6587\u4ef6<\/p>\n

\n cp ~\/testFile ~\/testNewFile\n<\/p><\/blockquote>\n

\u4f7f\u7528 rm \u547d\u4ee4\u5220\u9664\u6587\u4ef6, \u8f93\u5165 y \u540e\u56de\u8f66\u786e\u8ba4\u5220\u9664<\/p>\n

\n rm ~\/testFile\n<\/p><\/blockquote>\n

\u4f7f\u7528 cat \u547d\u4ee4\u67e5\u770b .bash_history \u6587\u4ef6\u5185\u5bb9<\/p>\n

\n cat ~\/.bash_history\n<\/p><\/blockquote>\n

\u8fc7\u6ee4\u3001\u7ba1\u9053\u3001\u91cd\u5b9a\u5411
\n\u8fc7\u6ee4\u51fa \/etc\/passwd \u6587\u4ef6\u4e2d\u5305\u542b root \u7684\u8bb0\u5f55<\/p>\n

\n grep \u2018root\u2019 \/etc\/passwd\n<\/p><\/blockquote>\n

\u9012\u5f52\u5730\u8fc7\u6ee4\u51fa \/var\/log\/ \u76ee\u5f55\u4e2d\u5305\u542b linux \u7684\u8bb0\u5f55<\/p>\n

\n grep -r \u2018linux\u2019 \/var\/log\/\n<\/p><\/blockquote>\n

\u7b80\u5355\u6765\u8bf4, Linux \u4e2d\u7ba1\u9053\u7684\u4f5c\u7528\u662f\u5c06\u4e0a\u4e00\u4e2a\u547d\u4ee4\u7684\u8f93\u51fa\u4f5c\u4e3a\u4e0b\u4e00\u4e2a\u547d\u4ee4\u7684\u8f93\u5165, \u50cf pipe \u4e00\u6837\u5c06\u5404\u4e2a\u547d\u4ee4\u4e32\u8054\u8d77\u6765\u6267\u884c, \u7ba1\u9053\u7684\u64cd\u4f5c\u7b26\u662f |\u6bd4\u5982, \u6211\u4eec\u53ef\u4ee5\u5c06 cat \u548c grep \u4e24\u4e2a\u547d\u4ee4\u7528\u7ba1\u9053\u7ec4\u5408\u5728\u4e00\u8d77<\/p>\n

\n cat \/etc\/passwd | grep \u2018root\u2019\n<\/p><\/blockquote>\n

\u8fc7\u6ee4\u51fa \/etc \u76ee\u5f55\u4e2d\u540d\u5b57\u5305\u542b ssh \u7684\u76ee\u5f55(\u4e0d\u5305\u62ec\u5b50\u76ee\u5f55)<\/p>\n

\n ls \/etc | grep \u2018ssh\u2019\n<\/p><\/blockquote>\n

\u53ef\u4ee5\u4f7f\u7528 > \u6216 < \u5c06\u547d\u4ee4\u7684\u8f93\u51fa\u91cd\u5b9a\u5411\u5230\u4e00\u4e2a\u6587\u4ef6\u4e2d<\/p>\n

\n echo \u2018Hello World\u2019 > ~\/test.txt\n<\/p><\/blockquote>\n

3\u3001\u8fd0\u7ef4\u5e38\u89c1\u547d\u4ee4
\nping\u547d\u4ee4
\n\u5bf9 cloud.tencent.com \u53d1\u9001 4 \u4e2a ping \u5305, \u68c0\u67e5\u4e0e\u5176\u662f\u5426\u8054\u901a<\/p>\n

\n ping -c 4 cloud.tencent.com\n<\/p><\/blockquote>\n

netstat\u547d\u4ee4
\nnetstat \u547d\u4ee4\u7528\u4e8e\u663e\u793a\u5404\u79cd\u7f51\u7edc\u76f8\u5173\u4fe1\u606f\uff0c\u5982\u7f51\u7edc\u8fde\u63a5, \u8def\u7531\u8868, \u63a5\u53e3\u72b6\u6001\u7b49\u7b49\u5217\u51fa\u6240\u6709\u5904\u4e8e\u76d1\u542c\u72b6\u6001\u7684tcp\u7aef\u53e3<\/p>\n

\n netstat -lt\n<\/p><\/blockquote>\n

\u67e5\u770b\u6240\u6709\u7684\u7aef\u53e3\u4fe1\u606f, \u5305\u62ec PID \u548c\u8fdb\u7a0b\u540d\u79f0<\/p>\n

\n netstat -tulpn\n<\/p><\/blockquote>\n

ps\u547d\u4ee4
\n\u8fc7\u6ee4\u5f97\u5230\u5f53\u524d\u7cfb\u7edf\u4e2d\u7684 ssh \u8fdb\u7a0b\u4fe1\u606f<\/p>\n

\n ps -aux | grep \u2018ssh\u2019\n<\/p><\/blockquote>\n

\u53c2\u8003\u6587\u732e\u2014\u2014\u817e\u8baf\u4e91\u5f00\u53d1\u8005\u5b9e\u9a8c\u5ba4<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

1\u3001\u76ee\u5f55\u64cd\u4f5c \u4f7f\u7528mkdir\u521b\u5efa\u76ee\u5f55\uff1a mkdir $HOME\/testFolder \u4f7f\u7528cd\u547d\u4ee4\u5207\u6362\u76ee\u5f55 c… \u7ee7\u7eed\u9605\u8bfb Linux\u5e38\u7528\u64cd\u4f5c<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[31],"class_list":["post-96","post","type-post","status-publish","format-standard","hentry","category-linux","tag-linux"],"_links":{"self":[{"href":"https:\/\/wangliguang.cn\/index.php?rest_route=\/wp\/v2\/posts\/96","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wangliguang.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wangliguang.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wangliguang.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wangliguang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=96"}],"version-history":[{"count":1,"href":"https:\/\/wangliguang.cn\/index.php?rest_route=\/wp\/v2\/posts\/96\/revisions"}],"predecessor-version":[{"id":690,"href":"https:\/\/wangliguang.cn\/index.php?rest_route=\/wp\/v2\/posts\/96\/revisions\/690"}],"wp:attachment":[{"href":"https:\/\/wangliguang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=96"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wangliguang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=96"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wangliguang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=96"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}