жесткая ссылка Linux
# hard link is a FILE that points to another file unlike symbolic link ( aka soft link ) which is a link to another filename
ln file link
#example -> ln speech.txt speech-hard
# when you modify a file that points to an original file or a pointer file which is a hard link file, every hard link that is pointing to the original file will be changed to the one that has been modified as well
# you will see a picture at Operation section that will help you to understand more about hard link in this wesbite -> https://en.wikipedia.org/wiki/Hard_link
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