3 uniq \- report repeated lines in a file
19 or the standard input, to the
20 standard output, comparing adjacent lines.
21 In the normal case, the second and succeeding copies
24 Repeated lines must be adjacent
31 Print (one copy of) duplicated lines.
34 Prefix a repetition count and a tab to each output line.
44 together with any blanks before each are ignored.
45 A field is defined as a string of non-space, non-tab characters
46 separated by tabs and spaces from its neighbors.
51 characters are ignored.
52 Fields are skipped before characters.
54 .B /sys/src/cmd/uniq.c
58 Field selection and comparison should be compatible with