What is the main advantage of creating links to a file
instead of copies of the file?
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Answer Posted / daniel
The main advantage is not really that it saves disk space
(though it does that too) but, rather, that a change of
permissions on the file is applied to all the link access
points. The link will show permissions of lrwxrwxrwx but
that is for the link itself and not the access to the file
to which the link points. Thus if you want to change the
permissions for a command, such as su, you only have to do
it on the original. With copies you have to find all of the
copies and change permission on each of the copies.
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