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Finally, depending on the directory, the -a option can reveal a great number of hidden items of which you weren’t aware. Expect to see them every time you use the -a option. These two hidden files exist in every single folder on your system, and you can’t get rid of them. points to the directory above this one, the parent directory. First, ls -a displays both hidden and unhidden items, so you see both. You should know several things about this listing. If you want to view these hidden elements, just use the -a option (or -all). Your home directory, for instance, is just bursting with hidden files and folders, all made invisible by the placement of a.
Up to this point, you’ve been viewing the visible files in directories, but don’t forget that many directories contain hidden files in them as well. Learn More Buy View Hidden Files and Folders ls -a
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