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tonydba

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symbolic link

What are the advantages of symbolic link?
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duncanb7

If you have old database or file on your server, you need to remove to some other NEW  location.
But some older user just know the old location. And it is hard to tell all user
your file location is moved to NEW , so just your link to point to new location in the old location so that the users doesn't need to know the exact path of the new file location
and they can read all files  at New location (even they don't know the file is moved to NEW)

The site explain more
http://en.wikipedia.org/wiki/Symbolic_link
The site is how to make a link
http://www.cyberciti.biz/faq/unix-creating-symbolic-link-ln-command/

Duncan
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ASKER

for example

/mnt/source

what will happen after a soft link is created.

ln -s /mnt/source/ted.txt one.txt
when you type or more or vim   or vi or edit  one.txt that will read  /mnt/source/ted.txt
and one.txt is just a link point to  /mnt/source/ted.txt from all linux command
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ASKER

what command I have to link in another server..?

How will know that a particular file is linked..
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Symbolic links are useful for all sorts of things.  

A good example is when you have different versions of software installed.   A symbolic link makes it very easy to swap between versions without having to change paths.

Say you have the following:

/usr/software-1.04-b1
/usr/software-1.05-b1

Then you can create a symbolic link /usr/software to point to whichever version of the software you want active.

That way, you just need /usr/software in your PATH, rather than having to manually update the PATH whenever the software version and path changes.
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omarfarid
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ASKER

yes understood.