What is the ls option to list entries by lines instead of by columns?
command will list entries one per line. More generally, you can use the
option. Here <WORD> should be one of the words listed on the left column below:
across -x commas -m horizontal -x long -l single-column -1 verbose -l vertical -C
where the one letter options given on the right colum are just shorthands for the longer version.