Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

removing the duplicate lines in a file

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting removing the duplicate lines in a file
# 1  
Old 08-01-2008
removing the duplicate lines in a file
Hi,

I need to concatenate three files in to one destination file.In this if some duplicate data occurs it should be deleted.
eg:
file1:
-----
data1 value1
data2 value2
data3 value3

file2:
-----
data1 value1
data4 value4
data5 value5

file3:
-----
data1 value1
data4 value4
data3 value3
data6 value6

the result file:
--------------
data1 value1
data2 value2
data3 value3
data4 value4
data5 value5
data6 value6

How to achieve this?
# 2  
Old 08-01-2008
try:
Code:
cat file1 file2 file3 | sort | uniq

# 3  
Old 08-01-2008
No need for sort | uniq because sort -u will do it in one step.
# 4  
Old 08-01-2008
MySQL Try this
sort -u file*

or

sort -u file1 file2 file3
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Removing duplicate lines on first column based with pipe delimiter

Hi, I have tried to remove dublicate lines based on first column with pipe delimiter . but i ma not able to get some uniqu lines Command : sort -t'|' -nuk1 file.txt Input : 38376KZ|09/25/15|1.057 38376KZ|09/25/15|1.057 02006YB|09/25/15|0.859 12593PS|09/25/15|2.803... (2 Replies)
Discussion started by: parithi06
2 Replies

2. Homework & Coursework Questions

Script: Removing HTML tags and duplicate lines

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted! 1. The problem statement, all variables and given/known data: You will write a script that will remove all HTML tags from an HTML document and remove any consecutive... (3 Replies)
Discussion started by: tburns517
3 Replies

3. UNIX for Dummies Questions & Answers

Removing a set of Duplicate lines from a file

Hi, How do i remove a set of duplicate lines from a file. My file contains the lines: abc def ghi abc def ghi jkl mno pqr jkl mno (1 Reply)
Discussion started by: raosr020
1 Replies

4. Shell Programming and Scripting

Removing a block of duplicate lines from a file

Hi all, I have a file with the data 1 abc 2 123 3 ; 4 rao 5 bell 6 ; 7 call 8 abc 9 123 10 ; 11 rao 12 bell 13 ; (10 Replies)
Discussion started by: raosr020
10 Replies

5. Shell Programming and Scripting

removing duplicate lines while maintaing coherence with second file

So I have two files. The first file, file1.txt, has lines of numbers separated by commas. file1.txt 10,2,30,50 22,6,3,15,16,100 73,55 78,40,33,30,11 73,55 99,82,85 22,6,3,15,16,100 The second file, file2.txt, has sentences. file2.txt "the cat is fat" "I like eggs" "fish live in... (6 Replies)
Discussion started by: adrunknarwhal
6 Replies

6. Shell Programming and Scripting

Removing Duplicate Lines per Section

Hello, I am in need of removing duplicate lines from within a file per section. File: ABC1 012345 header ABC2 7890-000 ABC3 012345 Header Table ABC4 ABC5 593.0000 587.4800 ABC5 593.5000 587.6580 <= dup need to remove ABC5 593.5000 ... (5 Replies)
Discussion started by: petersf
5 Replies

7. Shell Programming and Scripting

Removing duplicates from string (not duplicate lines)

please help me in getting following: Input Desired output x="foo" foo x="foo foo" foo x="foo foo" foo x="foo abc foo" foo abc x="foo foo1 foo2" foo foo1 foo2 I need to remove duplicated from string.. (8 Replies)
Discussion started by: vickylife
8 Replies

8. Shell Programming and Scripting

removing duplicate blank lines

Hi, how to remove the blank lines from the file only If we have more than one blank line. thanks rameez (8 Replies)
Discussion started by: rameezrajas
8 Replies

9. UNIX for Dummies Questions & Answers

removing duplicate lines from a file

Hi, I am trying to remove duplicate lines from a file. For example the contents of example.txt is: this is a test 2342 this is a test 34343 this is a test 43434 and i want to remove the "this is a test" lines only and end up with the numbers in the file, that is, end up with: 2342... (4 Replies)
Discussion started by: ocelot
4 Replies

10. UNIX for Dummies Questions & Answers

Removing duplicate lines ignore case

hi, I have the following input in file: abc ab a AB b c a C B When I use uniq -u file,the out put file is: abc ab AB c v B C (17 Replies)
Discussion started by: hellsd
17 Replies
Login or Register to Ask a Question