| rsc | cfa37a7 | 2004-04-10 18:53:55 +0000 | [diff] [blame] | 1 | .TH UNIQ 1 |
| 2 | .SH NAME |
| 3 | uniq \- report repeated lines in a file |
| 4 | .SH SYNOPSIS |
| 5 | .B uniq |
| 6 | [ |
| 7 | .B -udc |
| 8 | [ |
| 9 | .BI +- num |
| 10 | ] |
| 11 | ] |
| 12 | [ |
| 13 | .I file |
| 14 | ] |
| 15 | .SH DESCRIPTION |
| 16 | .I Uniq |
| 17 | copies the input |
| 18 | .IR file , |
| 19 | or the standard input, to the |
| 20 | standard output, comparing adjacent lines. |
| 21 | In the normal case, the second and succeeding copies |
| 22 | of repeated lines are |
| 23 | removed. |
| 24 | Repeated lines must be adjacent |
| 25 | in order to be found. |
| 26 | .TP |
| 27 | .B -u |
| 28 | Print unique lines. |
| 29 | .TP |
| 30 | .B -d |
| 31 | Print (one copy of) duplicated lines. |
| 32 | .TP |
| 33 | .B -c |
| 34 | Prefix a repetition count and a tab to each output line. |
| 35 | Implies |
| 36 | .B -u |
| 37 | and |
| 38 | .BR -d . |
| 39 | .TP |
| 40 | .BI - num |
| 41 | The first |
| 42 | .IR num |
| 43 | fields |
| 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. |
| 47 | .TP |
| 48 | .BI + num |
| 49 | The first |
| 50 | .IR num |
| 51 | characters are ignored. |
| 52 | Fields are skipped before characters. |
| 53 | .SH SOURCE |
| rsc | b5fdffe | 2004-04-19 19:22:56 +0000 | [diff] [blame] | 54 | .B /usr/local/plan9/src/cmd/uniq.c |
| rsc | cfa37a7 | 2004-04-10 18:53:55 +0000 | [diff] [blame] | 55 | .SH "SEE ALSO" |
| 56 | .IR sort (1) |
| 57 | .SH BUGS |
| 58 | Field selection and comparison should be compatible with |
| 59 | .IR sort (1). |
