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running "ls -lthr" in terminal

Basic question, in terminal, what does the below do?

ls -lthr

what's the difference between the above and the normal

ls -l

Thanks

Solution

  • You've got to understand that each letter after the - is an option.

    You can see those options using ls --help or man : https://man7.org/linux/man-pages/man1/ls.1.html

      -l
    use a long listing format

  -t     
    sort by time, newest first; see --time

  -h, --human-readable
    with -l and -s, print sizes like 1K 234M 2G etc.

  -r, --reverse
    reverse order while sorting