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- DUP Filter
- Command
-
-
- ----------------------------------------------------------------
-
- Purpose: Reads data from the standard input, removes adjacent
- duplicated lines, and writes remainder to the standard
- output.
-
- Format: DUP [<infile] [>outfile] [?] [/nn]
-
- Type: Internal External
- ***
-
- Remarks: Duplicate lines must be adjacent to be detected.
- Normally, DUP will be used in a pipeline after
- SORT, which will bring duplicates together.
-
- If option /nn (where nn is a number) is used, the
- comparison is based on only the first nn characters of
- each line.
-
- Option ? prints a command summary help message.
-
- DUP requires DOS 2.0, and will abort and print an error
- message under earlier versions of DOS.
-
- Author: David Whitman
- P.O. Box 1157
- North Wales, PA 19454
-
- This program is in the public domain.