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< title > Linux Frequently Asked Questions !< / title >
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< / style >
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< body class = "article toc2 toc-right" >
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< h1 > Linux Frequently Asked Questions !< / h1 >
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< span id = "author" class = "author" > Apostolos rootApostolos@swarmlab.io< / span > < br >
< / div >
< div id = "toc" class = "toc2" >
< div id = "toctitle" > Πίνακας περιεχομένων< / div >
< ul class = "sectlevel1" >
< li > < a href = "#_what_is_the_difference_between_a_symbolic_link_and_a_hard_link" > 1. What is the difference between a symbolic link and a hard link?< / a > < / li >
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< p > Frequently Asked Questions< / p >
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< / div >
< div class = "sect1" >
< h2 id = "_what_is_the_difference_between_a_symbolic_link_and_a_hard_link" > 1. What is the difference between a symbolic link and a hard link?< / h2 >
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< p > A file in the file system is basically a link to an inode.< / p >
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< p > A hard link, then, just creates another file with a link to the same underlying inode.< / p >
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< pre > A symbolic or soft link is an actual link to the original file, whereas a hard link is a mirror copy of the original file.< / pre >
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< pre > If you delete the original file, the soft link has no value, because it points to a non-existent file.< / pre >
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< pre > But in the case of hard link, it is entirely opposite. Even if you delete the original file, the hard link will still has the data of the original file.< / pre >
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< pre > Because hard link acts as a mirror copy of the original file.< / pre >
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When you delete a file, it removes one link to the underlying inode. The inode is only deleted (or deletable/over-writable) when all links to the inode have been deleted.
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Hard links are only valid within the same File System. Symbolic links can span file systems as they are simply the name of another file.
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Last updated 2020-11-06 10:02:12 UTC
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