sort, merge, or sequence check text files |
-k keydef The keydef argument is a restricted sort key field definition. The format of this definition is: |
-n Restrict the sort key to an initial numeric string, consisting of optional <blank>s, optional minus sign, and zero or more digits with an optional radix character and thousands separators (as defined in the current locale), which shall be sorted by arithmetic value. An empty digit string shall be treated as zero. Leading zeros and signs on zeros shall not affect ordering. |
-r Reverse the sense of comparisons. The treatment of field separators can be altered using the options: |