Hi, The manual entry for -f on https://www.gnu.org/software/coreutils/manual/html_node/Sorting-the-output.html#index-_002df-9 contains:
"[...] This is equivalent to the combination of --all (-a), --sort=none (-U), -1, --color=none, and --hyperlink=none [...]." The "-1" option seems to be incorrect because "ls -f" lists more than one file per line with ls 9.4. Regards, Daniel