-l: displays a long output format that includes additional information about each file, such as access rights, owner, group, size, creation date, etc.-a: displays all files, including hidden files starting with a dot.-h: displays the size of files in human-readable format (for example, "1K", "2M", etc.).-t: displays files in the order of the last modification, starting with the most recent.-r: displays files in reverse order.
$ ls -ltotal 0drwxr-xr-x 2 user user 6 Feb 28 14:25 dir1-rw-r--r-- 1 user user 0 Feb 28 14:25 file1.txt-rw-r--r-- 1 user user 12 Feb 28 14:25 file2.txt
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