SORT /R /+n /M kilobytes /L locale /REC recordbytes drive1:][path1]filename1 /T drive2:][path2 /O drive3:][path3]filename3 ...

SORT [/R] [/+n] [/M kilobytes] [/L locale] [/REC recordbytes]   [[drive1:][path1]filename1] [/T [drive2:][path2]]   [/O [drive3:][path3]filename3]   /+n                         Specifies the character number, n, to                               begin each comparison.  /+3 indicates that                               each comparison should begin at the 3rd                               character in each line.  Lines with fewer                               than n characters collate before other lines.                               By default comparisons start at the first                               character in each line.   /L[OCALE] locale            Overrides the system default locale with                               the specified one.  The ""C"" locale yields                               the fastest collating sequence and is                               currently the only alternative.  The sort                               is always case insensitive.   /M[EMORY] kilobytes         Specifies amount of main memory to use for                               the sort, in kilobytes.  The memory size is                               always constrained to be a minimum of 160                               kilobytes.  If the memory size is specified                               the exact amount will be used for the sort,                               regardless of how much main memory is                               available.                                The best performance is usually achieved by                               not specifying a memory size.  By default the                               sort will be done with one pass (no temporary                               file) if it fits in the default maximum                               memory size, otherwise the sort will be done                               in two passes (with the partially sorted data                               being stored in a temporary file) such that                               the amounts of memory used for both the sort                               and merge passes are equal.  The default                               maximum memory size is 90% of available main                               memory if both the input and output are                               files, and 45% of main memory otherwise.