Login or Register to Ask a Question and Join Our Community


UNIX for Dummies Questions & Answers

Need Some Help with "diff"

 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers Need Some Help with "diff"
# 1  
Old 11-21-2012
RedHat Need Some Help with "diff"
Compare two files and remove duplicates and display the output of "FILE-A"

For instance

FILE-A

Code:
aaaa                   
hhhdh                 
hddscs                 
sdcsdcs               
csdcsd

FILE-B

Code:
hhhdh
bbdbds
aaaa
sdcsdcs
csdcsd

Output should be :

Code:
hddscs

Thanks
-V
Last edited by Scrutinizer; 11-21-2012 at 07:22 PM.. Reason: code tags
# 2  
Old 11-21-2012
Code:
awk 'FNR==NR{f[$0]; next;} { if(!($1 in f)) print;} ' fileB fileA
hddscs

This User Gave Thanks to Yoda For This Post:
8055
# 3  
Old 11-21-2012
See https://www.unix.com/shell-programmin...two-files.html
# 4  
Old 11-22-2012
try and use this
Code:
grep -vf fileb filea

 
Login or Register to Ask a Question

Previous Thread | Next Thread

9 More Discussions You Might Find Interesting

1. AIX

Apache 2.4 directory cannot display "Last modified" "Size" "Description"

Hi 2 all, i have had AIX 7.2 :/# /usr/IBMAHS/bin/apachectl -v Server version: Apache/2.4.12 (Unix) Server built: May 25 2015 04:58:27 :/#:/# /usr/IBMAHS/bin/apachectl -M Loaded Modules: core_module (static) so_module (static) http_module (static) mpm_worker_module (static) ... (3 Replies)
Discussion started by: penchev
3 Replies

2. Shell Programming and Scripting

Bash script - Print an ascii file using specific font "Latin Modern Mono 12" "regular" "9"

Hello. System : opensuse leap 42.3 I have a bash script that build a text file. I would like the last command doing : print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt where : print_cmd ::= some printing... (1 Reply)
Discussion started by: jcdole
1 Replies

3. UNIX for Dummies Questions & Answers

Using "mailx" command to read "to" and "cc" email addreses from input file

How to use "mailx" command to do e-mail reading the input file containing email address, where column 1 has name and column 2 containing “To” e-mail address and column 3 contains “cc” e-mail address to include with same email. Sample input file, email.txt Below is an sample code where... (2 Replies)
Discussion started by: asjaiswal
2 Replies

4. UNIX for Dummies Questions & Answers

Comparing lists when "diff" isn't sufficiently stringent

Greetings. I like to compare two lists of numbers, A.txt and B.txt, to see the numbers that are in B.txt but not in A.txt. I only need the "deletions" with reference to A.txt. Using the diff command doesn't work because it considers too many of the deletions just changes because they are a... (7 Replies)
Discussion started by: Twinklefingers
7 Replies

5. Shell Programming and Scripting

awk command to replace ";" with "|" and ""|" at diferent places in line of file

Hi, I have line in input file as below: 3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL My expected output for line in the file must be : "1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL" Can someone... (7 Replies)
Discussion started by: shis100
7 Replies

6. UNIX for Dummies Questions & Answers

Explain the line "mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'`"

Hi Friends, Can any of you explain me about the below line of code? mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'` Im not able to understand, what exactly it is doing :confused: Any help would be useful for me. Lokesha (4 Replies)
Discussion started by: Lokesha
4 Replies

7. UNIX for Dummies Questions & Answers

Maximum input file size in "Diff" Command

Hello, Can anyone let me know what is the maximum file size that can be given as input for the "Diff" Command in Unix? I have a file size as large as 28MB and which can also increase. Will I face any issues with such a file size. If yes, What is the other alternative. Thanks in advance for... (1 Reply)
Discussion started by: Neeraja
1 Replies

8. UNIX for Dummies Questions & Answers

diff on c-source file always returns "files differ"

I have a c-source file that is evidently seen by unix as a binary file. When doing a diff between it and older versions with substantial differences, diff will only return "files differ". I have tried cat-ing the file to another file; tried using the "-h" on the diff; I have tried ftp-ing it... (7 Replies)
Discussion started by: C-Prog-Man
7 Replies

9. Shell Programming and Scripting

reformat the output from "diff" command

Hi all, I use the diff command and got the output: $> diff -e file1.txt file2.txt 15a 000675695 Yi Chen Chen 200520 EASY 50 2/28/05 0:00 SCAD Debit Card Charge . 12a 000731176 Sarah Anderson 200520 EASY 25 2/28/05 0:00 SCAD Debit Card Charge . 11a... (5 Replies)
Discussion started by: CamTu
5 Replies
Login or Register to Ask a Question