关于Windows中的硬链接

https://zhidao.baidu.com/question/748233720330351012.html

linux中使用硬链接

ln a.txt b.txt

查看硬链接

ls -il

关于硬链接磁盘空间的占用情况

http://www.mamicode.com/info-detail-1914045.html

记得使用du -h;ll -h

mklink /h 002CD3A8-ED84-045E-7480-378A4C52E515_2.mp4 002CD3A8-ED84-045E-7480-378A4C52E515.mp4
为 002CD3A8-ED84-045E-7480-378A4C52E515_2.mp4 <<===>> 002CD3A8-ED84-045E-7480-378A4C52E515.mp4 创建了硬链接


文件总大小由28M上涨到42M

[root@DevServer 00]# ls -li
total 43228
  281474976757712 -rwxr-xr-x 0 root root 15510852 Dec 22 14:03 002CD3A8-ED84-045E-7480-378A4C52E515_2.mp4
  281474976757712 -rwxr-xr-x 0 root root 15510852 Dec 22 14:03 002CD3A8-ED84-045E-7480-378A4C52E515.mp4



在Centos中创建硬链接
ln 002CD3A8-ED84-045E-7480-378A4C52E515.mp4 002CD3A8-ED84-045E-7480-378A4C52E515_3.mp4
42M-->58M

df -h
[root@DevServer 00]# df -h
Filesystem           Size  Used Avail Use% Mounted on
/dev/sda3            484G  449G   11G  98% /
tmpfs                7.8G   17M  7.8G   1% /dev/shm
/dev/sda1            477M  103M  349M  23% /boot
//10.10.14.227/down  100G   42G   59G  42% /usr/local/tomcat7/webapps/dsideal_yy/html/down

====================================================================================================================
[root@DevServer 00]# ln t_resource_info.csv t_resource_info_1.csv
[root@DevServer 00]# ln t_resource_info.csv t_resource_info_2.csv
[root@DevServer 00]# ln t_resource_info.csv t_resource_info_3.csv
[root@DevServer 00]# ln t_resource_info.csv t_resource_info_4.csv
[root@DevServer 00]# ln t_resource_info.csv t_resource_info_5.csv

[root@DevServer 00]# du -h;ll
5.9G    .
total 6085488