On 28/07/12 03:08 PM, Umarzuki Mochlis wrote:
this output is before i hard-linked a 4.4 MB mp3 file
$ df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda2 677688728 112432972 531334324 18% /
tmpfs 1987692 0 1987692 0% /lib/init/rw
udev 1981764 244 1981520 1% /dev
tmpfs 1987692 4 1987688 1% /dev/shm
/dev/sda1 297560 49172 233028 18% /boot
this is after hard-linked that file
umarzuki@v470:~/Videos$ df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda2 677688728 112432940 531334356 18% /
tmpfs 1987692 0 1987692 0% /lib/init/rw
udev 1981764 244 1981520 1% /dev
tmpfs 1987692 4 1987688 1% /dev/shm
/dev/sda1 297560 49172 233028 18% /boot
this is after I deleted the original mp3 file
umarzuki@v470:~/Videos$ df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda2 677688728 112432996 531334300 18% /
tmpfs 1987692 0 1987692 0% /lib/init/rw
udev 1981764 244 1981520 1% /dev
tmpfs 1987692 4 1987688 1% /dev/shm
/dev/sda1 297560 49172 233028 18% /boot
i can still play the mp3 file.
Of course. A hard link is basically the same as a directory entry
pointing to the file.
Why is that the used space is reduced (/dev/sda2) after I hard-linked
that mp3 file?
Why is that the used space is increased after I deleted the source mp3 file?
Could be something to do with the file system being used. The journal,
for example, might shrink or grow. It may have little or nothing to do
with the hard linking.
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