/usr duplicate /root

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I am learning linux file system from Centos and noticed that:



[root@iz2ze9wve43n2nyuvmsfx5z ~]# ls /
bin dev home lib64 media opt root sbin sys usr
boot etc lib lost+found mnt proc run srv tmp var


and the /usr



[root@iz2ze9wve43n2nyuvmsfx5z ~]# ls /usr
bin etc games include lib lib64 libexec local sbin share src tmp


only one of them is a linked



[root@iz2ze9wve43n2nyuvmsfx5z ~]# ls -l /usr
total 120
dr-xr-xr-x. 2 root root 32768 Sep 18 22:44 bin
drwxr-xr-x. 2 root root 4096 Apr 11 2018 etc
drwxr-xr-x. 2 root root 4096 Apr 11 2018 games
drwxr-xr-x. 51 root root 4096 Jul 4 11:27 include
dr-xr-xr-x. 30 root root 4096 Apr 11 2018 lib
dr-xr-xr-x. 43 root root 36864 Aug 10 16:31 lib64
drwxr-xr-x. 24 root root 4096 Aug 10 13:53 libexec
drwxr-xr-x. 15 root root 4096 Aug 19 02:38 local
dr-xr-xr-x. 2 root root 12288 Sep 6 12:28 sbin
drwxr-xr-x. 96 root root 4096 Aug 10 16:33 share
drwxr-xr-x. 4 root root 4096 Apr 11 2018 src
lrwxrwxrwx 1 root root 10 Jun 15 22:08 tmp -> ../var/tmp


Why they are identical to one another? Is it the rare case on Centos?









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    up vote
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    down vote

    favorite












    I am learning linux file system from Centos and noticed that:



    [root@iz2ze9wve43n2nyuvmsfx5z ~]# ls /
    bin dev home lib64 media opt root sbin sys usr
    boot etc lib lost+found mnt proc run srv tmp var


    and the /usr



    [root@iz2ze9wve43n2nyuvmsfx5z ~]# ls /usr
    bin etc games include lib lib64 libexec local sbin share src tmp


    only one of them is a linked



    [root@iz2ze9wve43n2nyuvmsfx5z ~]# ls -l /usr
    total 120
    dr-xr-xr-x. 2 root root 32768 Sep 18 22:44 bin
    drwxr-xr-x. 2 root root 4096 Apr 11 2018 etc
    drwxr-xr-x. 2 root root 4096 Apr 11 2018 games
    drwxr-xr-x. 51 root root 4096 Jul 4 11:27 include
    dr-xr-xr-x. 30 root root 4096 Apr 11 2018 lib
    dr-xr-xr-x. 43 root root 36864 Aug 10 16:31 lib64
    drwxr-xr-x. 24 root root 4096 Aug 10 13:53 libexec
    drwxr-xr-x. 15 root root 4096 Aug 19 02:38 local
    dr-xr-xr-x. 2 root root 12288 Sep 6 12:28 sbin
    drwxr-xr-x. 96 root root 4096 Aug 10 16:33 share
    drwxr-xr-x. 4 root root 4096 Apr 11 2018 src
    lrwxrwxrwx 1 root root 10 Jun 15 22:08 tmp -> ../var/tmp


    Why they are identical to one another? Is it the rare case on Centos?









    share







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    rider dragon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I am learning linux file system from Centos and noticed that:



      [root@iz2ze9wve43n2nyuvmsfx5z ~]# ls /
      bin dev home lib64 media opt root sbin sys usr
      boot etc lib lost+found mnt proc run srv tmp var


      and the /usr



      [root@iz2ze9wve43n2nyuvmsfx5z ~]# ls /usr
      bin etc games include lib lib64 libexec local sbin share src tmp


      only one of them is a linked



      [root@iz2ze9wve43n2nyuvmsfx5z ~]# ls -l /usr
      total 120
      dr-xr-xr-x. 2 root root 32768 Sep 18 22:44 bin
      drwxr-xr-x. 2 root root 4096 Apr 11 2018 etc
      drwxr-xr-x. 2 root root 4096 Apr 11 2018 games
      drwxr-xr-x. 51 root root 4096 Jul 4 11:27 include
      dr-xr-xr-x. 30 root root 4096 Apr 11 2018 lib
      dr-xr-xr-x. 43 root root 36864 Aug 10 16:31 lib64
      drwxr-xr-x. 24 root root 4096 Aug 10 13:53 libexec
      drwxr-xr-x. 15 root root 4096 Aug 19 02:38 local
      dr-xr-xr-x. 2 root root 12288 Sep 6 12:28 sbin
      drwxr-xr-x. 96 root root 4096 Aug 10 16:33 share
      drwxr-xr-x. 4 root root 4096 Apr 11 2018 src
      lrwxrwxrwx 1 root root 10 Jun 15 22:08 tmp -> ../var/tmp


      Why they are identical to one another? Is it the rare case on Centos?









      share







      New contributor




      rider dragon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      I am learning linux file system from Centos and noticed that:



      [root@iz2ze9wve43n2nyuvmsfx5z ~]# ls /
      bin dev home lib64 media opt root sbin sys usr
      boot etc lib lost+found mnt proc run srv tmp var


      and the /usr



      [root@iz2ze9wve43n2nyuvmsfx5z ~]# ls /usr
      bin etc games include lib lib64 libexec local sbin share src tmp


      only one of them is a linked



      [root@iz2ze9wve43n2nyuvmsfx5z ~]# ls -l /usr
      total 120
      dr-xr-xr-x. 2 root root 32768 Sep 18 22:44 bin
      drwxr-xr-x. 2 root root 4096 Apr 11 2018 etc
      drwxr-xr-x. 2 root root 4096 Apr 11 2018 games
      drwxr-xr-x. 51 root root 4096 Jul 4 11:27 include
      dr-xr-xr-x. 30 root root 4096 Apr 11 2018 lib
      dr-xr-xr-x. 43 root root 36864 Aug 10 16:31 lib64
      drwxr-xr-x. 24 root root 4096 Aug 10 13:53 libexec
      drwxr-xr-x. 15 root root 4096 Aug 19 02:38 local
      dr-xr-xr-x. 2 root root 12288 Sep 6 12:28 sbin
      drwxr-xr-x. 96 root root 4096 Aug 10 16:33 share
      drwxr-xr-x. 4 root root 4096 Apr 11 2018 src
      lrwxrwxrwx 1 root root 10 Jun 15 22:08 tmp -> ../var/tmp


      Why they are identical to one another? Is it the rare case on Centos?







      filesystems





      share







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      rider dragon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.










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      rider dragon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.








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      share






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      asked 4 mins ago









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      rider dragon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






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      Check out our Code of Conduct.

























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