Unix and Linux Discussions Tagged with uniq |
|
Thread / Thread Starter |
Last Post |
Replies |
Views |
Forum |
|
|
|
15 |
9,609 |
UNIX for Beginners Questions & Answers |
|
|
|
9 |
3,643 |
Shell Programming and Scripting |
|
|
|
5 |
2,471 |
AIX |
|
|
|
5 |
3,138 |
Shell Programming and Scripting |
|
|
|
4 |
2,293 |
UNIX for Beginners Questions & Answers |
|
|
|
6 |
2,736 |
Shell Programming and Scripting |
|
|
|
4 |
2,581 |
UNIX for Beginners Questions & Answers |
|
|
|
6 |
2,124 |
Shell Programming and Scripting |
|
|
|
1 |
1,474 |
Shell Programming and Scripting |
|
|
|
5 |
5,907 |
Shell Programming and Scripting |
|
|
|
9 |
2,951 |
Shell Programming and Scripting |
|
|
|
2 |
3,203 |
Shell Programming and Scripting |
|
|
|
3 |
21,211 |
Shell Programming and Scripting |
|
|
|
4 |
2,293 |
Shell Programming and Scripting |
|
|
|
23 |
12,632 |
Shell Programming and Scripting |
|
|
|
3 |
3,434 |
Shell Programming and Scripting |
|
|
|
6 |
2,834 |
UNIX for Dummies Questions & Answers |
|
|
|
6 |
4,703 |
Shell Programming and Scripting |
|
|
|
7 |
3,051 |
Shell Programming and Scripting |
|
|
|
6 |
3,101 |
UNIX for Dummies Questions & Answers |
|
|
|
1 |
2,597 |
Shell Programming and Scripting |
|
|
|
5 |
1,896 |
Shell Programming and Scripting |
|
|
|
1 |
2,445 |
OS X (Apple) |
|
|
|
2 |
21,426 |
Shell Programming and Scripting |
|
|
|
1 |
3,719 |
Shell Programming and Scripting |
|
|
|
2 |
3,065 |
Shell Programming and Scripting |
|
|
|
11 |
7,832 |
Shell Programming and Scripting |
|
|
|
4 |
3,455 |
UNIX for Dummies Questions & Answers |
|
|
|
4 |
10,663 |
Shell Programming and Scripting |
|
|
|
3 |
3,019 |
UNIX for Dummies Questions & Answers |
|
|
|
8 |
7,515 |
UNIX for Dummies Questions & Answers |
|
|
|
6 |
3,464 |
UNIX for Dummies Questions & Answers |
|
|
|
5 |
7,122 |
Shell Programming and Scripting |
|
|
|
17 |
88,486 |
Shell Programming and Scripting |
|
|
|
2 |
3,397 |
Shell Programming and Scripting |
|
|
|
3 |
15,850 |
UNIX for Dummies Questions & Answers |
|
|
|
1 |
30,878 |
Shell Programming and Scripting |
|
|
|
5 |
3,056 |
Shell Programming and Scripting |
|
|
|
8 |
5,137 |
UNIX for Dummies Questions & Answers |
|
|
|
5 |
2,745 |
Shell Programming and Scripting |
uniq(1) General Commands Manual uniq(1)
Name
uniq - report repeated lines in a file
Syntax
uniq [-udc[+n][-n]] [input[output]]
Description
The command reads the input file comparing adjacent lines. In the normal case, the second and succeeding copies of repeated lines are
removed; the remainder is written on the output file. Note that repeated lines must be adjacent in order to be found. For further infor-
mation, see
Options
The n arguments specify skipping an initial portion of each line in the comparison:
-n Skips specified number of fields. A field is defined as a string of non-space, non-tab characters separated by tabs and spaces from its
neighbors.
+n Skips specified number of characters in addition to fields. Fields are skipped before characters.
-c Displays number of repetitions, if any, for each line.
-d Displays only lines that were repeated.
-u Displays only unique (nonrepeated) lines.
If the -u flag is used, just the lines that are not repeated in the original file are output. The -d option specifies that one copy of
just the repeated lines is to be written. The normal mode output is the union of the -u and -d mode outputs.
The -c option supersedes -u and -d and generates an output report in default style but with each line preceded by a count of the number of
times it occurred.
See Also
comm(1), sort(1)
uniq(1)