Visit Our UNIX and Linux User Community


comparing 2 files


 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers comparing 2 files
# 1  
Old 09-10-2009
comparing 2 files

I want to compare two files in unix.
The delemiters in both the files are different (Although both are spaces but no of space is not consistent)

For example
a.txt
Code:
a       123         a.txt
b   24               b.txt

b.txt
Code:
a                     123                 a.txt
b                      24                   b.txt

How can we compare the above file?

Last edited by Franklin52; 09-10-2009 at 09:08 AM.. Reason: Please use code tags!
# 2  
Old 09-10-2009
Code:
diff -b a.txt b.txt

For more info:

Code:
man diff | less -p-b

# 3  
Old 09-10-2009
Thanks Franklin, Later onward I will take care of it.

Hi Raudoulov,
Some addition to my question is,
the second coloumn of both files are having same data till 10th desimal place. in second file there 13 desimal places and in 1st file there are 11 desimal places. In first file it is rounding the value.
Code:
in file.txt
the second coloumn is 
1.12345678957

Code:
in file2.txt
the second coloumn is  
1.1234567895678

I want it should match if upto 10th desimal places are matching. ignore rest.
# 4  
Old 09-11-2009
Something like this?
(use gawk, nawk or /usr/xpg4/bin/awk on Solaris)

Code:
awk 'NR == FNR { 
  $2 = sprintf("%.10f", $2)
  f1[FNR] = $0; next 
  }
{ 
  $2 = sprintf("%.10f", $2)
  if ($0 != f1[FNR]) 
    print $0, "<->", f1[FNR]  
  }'

 

Previous Thread | Next Thread
Test Your Knowledge in Computers #613
Difficulty: Medium
Examples of complex numbers in Python are (-5+4j) and (2.3 - 4.6j).
True or False?

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Comparing two files and list the difference with common first line content of both files

I have two file as given below which shows the ACL permissions of each file. I need to compare the source file with target file and list down the difference as specified below in required output. Can someone help me on this ? Source File ************* # file: /local/test_1 # owner: own #... (4 Replies)
Discussion started by: sarathy_a35
4 Replies

2. Shell Programming and Scripting

Comparing files in a directory against an array of files

I hope I can explain this correctly. I am using Bash-4.2 for my shell. I have a group of file names held in an array. I want to compare the names in this array against the names of files currently present in a directory. If the file does not exist in the directory, that is not a problem.... (5 Replies)
Discussion started by: BudMan
5 Replies

3. Shell Programming and Scripting

Comparing the files

Hi Friends, I have file1.txt file2.txt I tried using the diff and comm but not getting the expected output.. I want where exactly the miss match occurs. probably the field. Sourcevalue|Targetvalue|Linenumber|field 29123975|2923975|3|1 Please help. (6 Replies)
Discussion started by: i150371485
6 Replies

4. Shell Programming and Scripting

Help with comparing two files

Hi all I have to compare two file this time one is P11223 x1124 x1145 t5678 e3456 z2345 another file P11223 x s (2 Replies)
Discussion started by: manigrover
2 Replies

5. UNIX for Advanced & Expert Users

How to find duplicates contents in a files by comparing other files?

Hi Guys , we have one directory ...in that directory all files will be set on each day.. files must have header ,contents ,footer.. i wants to compare the header,contents,footer ..if its same means display an error message as 'files contents same' (7 Replies)
Discussion started by: Venkatesh1
7 Replies

6. Shell Programming and Scripting

Comparing the matches in two files using awk when both files have their own field separators

I've two files with data like below: file1.txt: AAA,Apples,123 BBB,Bananas,124 CCC,Carrot,125 file2.txt: Store1|AAA|123|11 Store2|BBB|124|23 Store3|CCC|125|57 Store4|DDD|126|38 So,the field separator in file1.txt is a comma and in file2.txt,it is | Now,the output should be... (2 Replies)
Discussion started by: asyed
2 Replies

7. Shell Programming and Scripting

Need help comparing two files and deleting some things in those files!

So I have two files: File1 pictures.txt 1.1 1.3 dance.txt 1.2 1.4 treehouse.txt 1.3 1.5 File2 pictures.txt 1.5 ref2313 1.4 ref2345 1.3 ref5432 1.2 ref4244 dance.txt 1.6 ref2342 1.5 ref2352 1.4 ref0695 1.3 ref5738 1.2 ref4948 1.1 treehouse.txt 1.6 ref8573 1.5 ref3284 1.4 ref5838... (24 Replies)
Discussion started by: linuxkid
24 Replies

8. Shell Programming and Scripting

Need Help Comparing two Files

I really need help on creating a script that does the following: I have one file (File 1) with lines in the following format: Name.maf score1 score2 I have a second file (File 2) with lines in the following format: label start end Name What I need to do is compare File 1 and... (1 Reply)
Discussion started by: awknerd
1 Replies

9. Shell Programming and Scripting

Comparing files

I have a file called X, which contains the following: 10 100 200 300 I then have file Y, which containts the following: 10 200 500 800 I want to write a script that will compare the contents of Y with the contents of X and ONLY return values in Y that does not exist in X (output... (5 Replies)
Discussion started by: soliberus
5 Replies

10. UNIX for Advanced & Expert Users

comparing shadow files with real files

Hi I need to compare shadow file sizes with their real file counterparts. If the shadow file size differs form the realfile size then it must send a mail. My problem is that our system has over 1600 shadowfiles in different directories, with different names. the only consistancy is the .sh file... (4 Replies)
Discussion started by: terrym
4 Replies

Featured Tech Videos