Linux introduction: Difference between revisions

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{{Command|ls -alth}}
{{Command|ls -alth}}


=== Navigating the file system === <!--T:10-->
=== Navigating the filesystem === <!--T:10-->
To move about in the file system, use the <tt>cd</tt> command (change directory).
To move about in the filesystem, use the <tt>cd</tt> command (change directory).


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Important note: to be able to read or write in a directory, you need to have execute permissions (<tt>x</tt>) set in all parent directories, all the way up to the file system's root ('''<tt>/</tt>'''). So if your home directory has <tt>drwx------</tt> permissions and contains a subdirectory with <tt>drwxr-xr-x</tt> permissions, other users cannot read the contents of this subdirectory because they do not have access (by the executable bit) to its parent directory.
Important note: to be able to read or write in a directory, you need to have execute permissions (<tt>x</tt>) set in all parent directories, all the way up to the filesystem's root ('''<tt>/</tt>'''). So if your home directory has <tt>drwx------</tt> permissions and contains a subdirectory with <tt>drwxr-xr-x</tt> permissions, other users cannot read the contents of this subdirectory because they do not have access (by the executable bit) to its parent directory.


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