{"id":608,"date":"2016-04-15T15:48:21","date_gmt":"2016-04-15T07:48:21","guid":{"rendered":"http:\/\/cn.hostease.com\/xueyuan\/?p=608"},"modified":"2016-04-15T15:48:21","modified_gmt":"2016-04-15T07:48:21","slug":"%e6%8e%92%e5%ba%8f%e5%91%bd%e4%bb%a4uniq","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/xueyuan\/jishu\/%e6%8e%92%e5%ba%8f%e5%91%bd%e4%bb%a4uniq\/","title":{"rendered":"\u6392\u5e8f\u547d\u4ee4uniq"},"content":{"rendered":"

uniq\u547d\u4ee4\u53ef\u4ee5\u53bb\u9664\u6392\u5e8f\u8fc7\u7684\u6587\u4ef6\u4e2d\u7684\u91cd\u590d\u884c,\u56e0\u6b64uniq\u7ecf\u5e38\u548csort\u5408\u7528.<\/p>\n

\u8bed\u6cd5:<\/p>\n

uniq\u00a0[-icd]<\/p>\n

\u5e38\u89c1\u53c2\u6570:<\/p>\n

-i\u00a0:\u00a0\u5ffd\u7565\u5927\u5c0f\u5199\u5b57\u7b26\u7684\u4e0d\u540c;<\/p>\n

-c\u00a0:\u00a0\u5728\u6bcf\u5217\u65c1\u8fb9\u663e\u793a\u6539\u884c\u91cd\u590d\u51fa\u73b0\u7684\u6b21\u6570;<\/p>\n

-d\u00a0:\u00a0\u4ec5\u663e\u793a\u91cd\u590d\u51fa\u73b0\u7684\u884c\u5217;<\/p>\n

-u\u00a0:\u00a0\u4ec5\u663e\u793a\u4e0d\u91cd\u590d\u51fa\u73b0\u7684\u884c\u5217;<\/p>\n

 <\/p>\n

<1>uniq\u8d77\u4f5c\u7528\u7684\u65f6,\u6240\u6709\u91cd\u590d\u884c\u5fc5\u987b\u662f\u76f8\u90bb\u7684,\u4e0d\u7136\u4f1a\u51fa\u73b0\u4ee5\u4e0b\u7ed3\u679c:<\/p>\n

[root@sqj2015\u00a0~]#\u00a0last\u00a0|\u00a0cut\u00a0-d\u00a0‘\u00a0‘\u00a0-f\u00a01\u00a0|\u00a0uniq\u00a0-c<\/p>\n

1\u00a0root<\/p>\n

1\u00a0reboot<\/p>\n

1\u00a0root<\/p>\n

1\u00a0reboot<\/p>\n

23\u00a0root<\/p>\n

1\u00a0reboot<\/p>\n

1<\/p>\n

1\u00a0wtmp<\/p>\n

\u4f46\u6211\u4eec\u5148\u8fdb\u884csort\u6392\u5e8f\u5462?<\/p>\n

[root@sqj2015\u00a0~]#\u00a0last\u00a0|\u00a0cut\u00a0-d\u00a0‘\u00a0‘\u00a0-f\u00a01\u00a0|\u00a0sort\u00a0|\u00a0uniq\u00a0-c<\/p>\n

1<\/p>\n

3\u00a0reboot<\/p>\n

25\u00a0root<\/p>\n

1\u00a0wtmp<\/p>\n

\u8fd9\u5e94\u8be5\u624d\u662f\u6211\u4eec\u60f3\u8981\u5f97\u5230\u7684\u7ed3\u679c,\u6240\u4ee5uniq\u4e00\u822c\u8ddfsort\u5408\u7528\u624d\u80fd\u8fbe\u5230\u7406\u60f3\u6548\u679c.<\/p>\n

 <\/p>\n

<2>uniq\u00a0-d\/-u\u9009\u9879<\/p>\n

uniq\u00a0-d\u9009\u9879\u53ea\u4f1a\u663e\u793a\u51fa\u91cd\u590d\u51fa\u73b0\u7684\u884c\u5217,\u5982\u4e0b:<\/p>\n

[root@sqj2015\u00a0~]#\u00a0last\u00a0|\u00a0cut\u00a0-d\u00a0‘\u00a0‘\u00a0-f\u00a01\u00a0|\u00a0sort\u00a0|\u00a0uniq\u00a0-cd<\/p>\n

3\u00a0reboot<\/p>\n

25\u00a0root<\/p>\n

\u800cuniq\u00a0-u\u9009\u9879\u786e\u53ea\u4f1a\u663e\u793a\u51fa\u4e0d\u91cd\u590d\u51fa\u73b0\u7684\u884c\u5217,\u5982\u4e0b:<\/p>\n

[root@sqj2015\u00a0~]#\u00a0last\u00a0|\u00a0cut\u00a0-d\u00a0‘\u00a0‘\u00a0-f\u00a01\u00a0|\u00a0sort\u00a0|\u00a0uniq\u00a0-cu<\/p>\n

1<\/p>\n

1\u00a0wtmp<\/p>\n

\u4e3a\u4e86\u8131\u51fa\u662f\u5426\u91cd\u590d\u51fa\u73b0\u95ee\u9898,\u6211\u4eec\u52a0\u5165\u4e86-c\u9009\u9879,\u6765\u8ba1\u6570,\u662f\u4e0d\u662f\u66f4\u6e05\u6670.<\/p>\n","protected":false},"excerpt":{"rendered":"

uniq\u547d\u4ee4\u53ef\u4ee5\u53bb\u9664\u6392\u5e8f\u8fc7\u7684\u6587\u4ef6\u4e2d\u7684\u91cd\u590d\u884c,\u56e0\u6b64uniq\u7ecf\u5e38\u548csort\u5408\u7528. \u8bed\u6cd5: uniq\u00a0[-icd] … \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":[49,5],"tags":[38,62,239],"class_list":["post-608","post","type-post","status-publish","format-standard","hentry","category-linux","category-jishu","tag-linux","tag-shell","tag-uniq"],"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\/608","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=608"}],"version-history":[{"count":1,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/608\/revisions"}],"predecessor-version":[{"id":609,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/608\/revisions\/609"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/media?parent=608"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/categories?post=608"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/tags?post=608"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}