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8.5.4 ordering options

Specify the ordering of the entries.

by-columns option.

This is the “print entries in column order” option. Normally, the entries are printed out in order by rows and then columns. This option will cause the entries to be ordered within columns. The final column, instead of the final row, may be shorter than the others.

sort option (-s).

This is the “sort input text” option. This option takes an optional string argument key-pat. Causes the input text to be sorted. If an argument is supplied, it is presumed to be a pattern and the sort is based upon the matched text. If the pattern starts with or consists of an asterisk (*), then the sort is case insensitive.