column

Format stdin or a file into multiple columns. Columns are filled before rows; the default separator is a whitespace. More information: https://manned.org/column.

printf "header1 header2\nbar foo\n" | column {{[-c|--output-width]}} {{30}}

printf "header1 header2\nbar foo\n" | column {{[-t|--table]}}

printf "header1,header2\nbar,foo\n" | column {{[-t|--table]}} {{[-s|--separator]}} {{,}}

printf "header1\nbar\nfoobar\n" | column {{[-c|--output-width]}} {{30}} {{[-x|--fillrows]}}