Millions of years after the last post I decided to make it come to live again, lets see for how long.
Simple, simple thing to start the new era, that's how I am usually making the backups from my work directory in my machine to the external disk:
rsync -av --link-dest=/Backups/2010-09-07/ ~/Work/ /Backups//2010-09-08/
This way everything that already exists in the previous backup (2010-09-10 directory) will be hard linked to the new backup, so my space is not all wasted and I can keep track of what was changed from backup to backup.
That's funny how the size is shown when you use those hard links:
$ mkdir 1 2
$ dd if=/dev/zero of=./1/somefile bs=1k count=5120
5120+0 records in
5120+0 records out
5242880 bytes (5.2 MB) copied, 0.0218812 s, 240 MB/s
$ ls -lrth *
2:
total 0
1:
total 5.0M
-rw-r--r-- 1 andre wheel 5.0M Sep 13 17:32 somefile
$ ln 1/somefile 2/somefile-hard-link
$ ls -lrth *
1:
total 5.0M
-rw-r--r-- 2 andre wheel 5.0M Sep 13 17:32 somefile
2:
total 5.0M
-rw-r--r-- 2 andre wheel 5.0M Sep 13 17:32 somefile-hard-link
$ du -ksh *
5.0M 1
0 2
$ rm 1/somefile
$ ls -lrth *
2:
total 5.0M
-rw-r--r-- 1 andre wheel 5.0M Sep 13 17:32 somefile-hard-link
1:
total 0
$ du -ksh *
0 1
5.0M 2
Nice, hm?
