| 先man touch一下，可以看出touch命令主要用来修改文件的access and modification time [root@test test]# date Sun Sep 21 15:53:37 CST 2008 [root@test test]# touch test.txt [root@test test]# ll total 0 -rw-r--r-- 1 root root 0 Sep 21 15:54 test.txt [root@test test]# touch -m -t "0808091252" test.txt [root@test test]# ll total 0 -rw-r--r-- 1 root root 0 Aug 9 12:52 test.txt -t 后面加的是修改时间，格式为[[CC]YY]MMDDhhmm[.ss] 即[年月日时分.秒] -m为修改时间mtime -a为访问时间atime |
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