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hi guys, i understand the link command or ln can create hard links (though not to directories) and there are also symbolic links. but i dont understand the practicallity of ...
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- 02-03-2013 #1
- Join Date
- Dec 2012
ln link command and practical use
i understand the link command or ln can create hard links (though not to directories) and there are also symbolic links.
but i dont understand the practicallity of this...when would you use a link, why would you...please help
- 02-03-2013 #2
Here are a couple of real examples.
I have a bash script which is used by one of my conky scripts to get the alliteritive name of the kernel from the mskefile in the Linux source tree. Currently that is on my machine "linux-headers-3.7-5.towo.1-siduction-amd64". It would be a pain to update my script every time the kernel updates (and on Siduction it happens a lot!) so I use a symbolic link called linux which I update instead.
I use a piece of software called back-in-time to dump my data to an external drive every hour. Even with a 1.5TB drive it wouldn't take long to fill up and the drive would be constantly busy if it always copied everything. Instead what it does it copy everything the first time and then only actually copy files that are new or changed. It uses hard links to replicate the structure from the previous backup for files that haven't changed and still exist.What do we want?
When do we want 'em?
Doesn't really matter does it!?
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