Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

how to compare a two files in unix server.

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting how to compare a two files in unix server.
# 1  
Old 10-15-2009
how to compare a two files in unix server.
Hi Friends,

I have a requirement like i have two files in diffrent locations. i want to compare these two files, if both the files are same i want to return "0" else return 1.

Please help me on this.

Thanks
sreenu.
# 2  
Old 10-15-2009
I'd recommend searching for a good book on basic UNIX commands. It's been so long since I had a UNIX class that I'm sure newer and better ones exist than when I was in school.

Try 'man diff' or Google for something like 'unix compare files'.

For something generic and simple like this, Google's probably a better choice than a forum like this. You'll get a lot more information much faster.
# 3  
Old 10-15-2009
Quote:
Originally Posted by sreenu80
i want to compare these two files, if both the files are same i want to return "0" else return 1.

Please help me on this.

Thanks
sreenu.
You could use the diff tool on that.
Please look at the diff man page.

Another solution may be to create checksums on the 2 files
with the md5sum binary, and afterwards compare the 2 checksums in your script.
# 4  
Old 10-15-2009
Code:
diff <file1> <file2> &>/dev/null && echo 0 || echo 1

Code:
[ "$(md5sum <file1> 2>/dev/null | cut -d' ' -f1)" ==  "$(md5sum <file2> 2>/dev/null | cut -d' ' -f1)" ] && echo 0 || echo 1

Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Compare 2 files with different keywords : use server health-check tool

I have two files to be compared to get the output of the differences. File1 has a lot more lists than File2. After searching a lot on this thread I'am unable to find the exact code that im willing to get. This will be used as 'pre-check'/post-check utility (health check Tool) to compare... (1 Reply)
Discussion started by: GeekyJimmy
1 Replies

2. Shell Programming and Scripting

Find and delete files and folders which are n days older from one unix server to another unix server

Hi All, Let me know how can i find and delete files from one unix server to another unix server which are 'N' days older. Please note that I need to delete files on remote unix server.So, probably i will need to use sftp, but question is how can i identify files and folders which are 'N'... (2 Replies)
Discussion started by: sachinkl
2 Replies

3. UNIX for Dummies Questions & Answers

compare zip files from a local to remote server

Good evening I need your help pease I know there are 2 commands(diff, or cp) to compare files in a directory. but the question arises: 1. can i compare zip files or ive got to unzip them? 2. how can i compare 2 files from a local to a remote server? (is there any special commad or ive got... (4 Replies)
Discussion started by: alexcol
4 Replies

4. Shell Programming and Scripting

Compare two files in UNIX

Hi, I have two files File1 Contents: abc dcf sdc File2 Contents: dcf sdc erg Now my program should return the contents existing in File1 but not in File2. In this case output shoud be "abc" as abc is not available in File 2. It should not return "erg" by saying it is... (4 Replies)
Discussion started by: forums123456
4 Replies

5. Shell Programming and Scripting

Compare two files in unix

Hi Gurus I need your kind help sorting the below query I have two text files File1.txt ID Name Address 101 Srinath BBB 102 Sidharth CCC File2.txt ID Name Address 102 Siddharth DDD 103 Suman EEE Now the requirement is if the second file has... (0 Replies)
Discussion started by: Pratik4891
0 Replies

6. Shell Programming and Scripting

script for to take files from FTP server to UNIX server and Unzipped that files

script for to take files from FTP server to UNIX server and Unzipped that files (1 Reply)
Discussion started by: sunilamarnadh
1 Replies

7. UNIX for Advanced & Expert Users

How to compare two files using UNIX?

I have two files which have primary key(s) for each row. I need to compare both the files and produce the output in the following format. Primary key(s),file1 value,file2 value. Both the input files will be comma separated files. I have accomplished this using perl, but it is... (6 Replies)
Discussion started by: gpsridhar
6 Replies

8. UNIX for Dummies Questions & Answers

how can i unix compare two files??

how can i unix compare two files?? var1 = 6499 7328 6351 7583 7573 var2 = 6499 7328 6351 7583 7777 i did: diff $var1 $var2 and i got the output: 1c1 < 6499 7328 6351 7583 7573 --- > 6499 7328 6351 7583 7777 what can i do with it? and what does it tell me?? how can i knoe that... (2 Replies)
Discussion started by: nirnir26
2 Replies

9. UNIX for Dummies Questions & Answers

Unix Compare Files

Hi, I need to compare 2 files based on the first field in each file and output the differences to a new file. example File 1 and File 2 both have first field as Number ie: File 1 1252652355 1859553322 1778899562 File 2 1252652355 1859553322 So I would expect File 3 to... (2 Replies)
Discussion started by: Lagre1
2 Replies

10. UNIX for Advanced & Expert Users

UNIX; Compare two files

Hi Guys, Requirement: Want to compare two files, if the the content of both files is same then show "Good result" else Show "Bad Result" I am using the following logic if( cmp -s a b = 0 ) then echo "Good result" else echo "Bad result" exit 0 fi But this is... (1 Reply)
Discussion started by: abhishek3598
1 Replies
Login or Register to Ask a Question