Interested to Buy Any Domain ? << Click Here >> for more details...
what is the use of uniq commmand?
- 8 Answers
- 13648 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / suitable
uniq command removes the duplicate lines from the sorted
file and display on the standard output. the original file
remains unchanged.
| Is This Answer Correct ? | 5 Yes | 1 No |
Answer / rhino
Small correction to Answer #3 If the line is repeated in
the very next line it will be removed , Else this will be
displayed as if it is a new number
Ex. as below -- This has been cross checked before answering
Ex : File duplitest has below lines
RohiBaby
RohiBaby
GunduBaby
ChinniBaby
RohiBaby
Rohith
cmd. : cat duplitest | uniq -- Gives below o/p
RohiBaby
GunduBaby
ChinniBaby
RohiBaby
Rohith
| Is This Answer Correct ? | 4 Yes | 0 No |
The Uniq command is used to report and Remove repeated line
in a file.
This is a value able tool for a lot of scripting and Testing.
Ex-
$ uniq Duplicate_line No_duplicate_line
If You want to see without repeated lines
Ex-
$ cat repeated_line_file | uniq
Thanks,
Jagadeeb@gmail.com
| Is This Answer Correct ? | 3 Yes | 1 No |
Answer / rhino
Sorry Typo error in Answer #4 -- Please read as below
** it will be removed -- it will not be removed
| Is This Answer Correct ? | 2 Yes | 0 No |
Answer / saurabh
This is the output of the command:
>cat skg.txt
aa
aa
bb
cc
bb
dd
cc
ee
--------------
>cat skg.txt | uniq
aa
bb
cc
bb
dd
cc
ee
| Is This Answer Correct ? | 2 Yes | 0 No |
Answer / amedela chandra sekhar
simple it display the unique data in the file
| Is This Answer Correct ? | 0 Yes | 0 No |
uniq command search the uniq data in file and if some
duplicate date then it put only single records in report.
For Example: cat testnumber.txt | uniq <enter>
File contents:
1233
456
678
1233
678
output file shows:
1233
456
678
| Is This Answer Correct ? | 3 Yes | 7 No |
what are the different commands used to create files?
What is the difference between Shell Programming and Shell scripting?
10 Answers HCL, TCS, Wipro,
What is the command to find maximum memory taking process on the server?
what are processor execution levels and priorities?
What is the use of the command 'ls -x chapter[1-5]' ?
What are Unix processes, and how do you manage them?
what is virtual machine?
Enlist some filename manipulation commands in unix.
How do you grep recursively?
How to see unused port number in Solaris?
How can you copy files or directories?
What does sed command do in unix?
Unix Commands 
