Sponsored Content
Top Forums Shell Programming and Scripting find common elements in 2 files (for loop) Post 302142633 by Lakris on Sunday 28th of October 2007 11:53:05 PM
Old 10-29-2007
Your code use "file1" as argument, not its content.
Try:

Quote:
while read line; do
grep -c "$line" file2;
done < file1
You will need to protect spaces in $line with quotation marks.
 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

To find all common lines from 'n' no. of files

Hi, I have one situation. I have some 6-7 no. of files in one directory & I have to extract all the lines which exist in all these files. means I need to extract all common lines from all these files & put them in a separate file. Please help. I know it could be done with the help of... (11 Replies)
Discussion started by: The Observer
11 Replies

2. Shell Programming and Scripting

Files common in two sets ??? How to find ??

Suppose we have 2 set of files set 1 set 2 ------ ------ abc hgb def ppp mgh vvv nmk sdf hgb ... (1 Reply)
Discussion started by: skyineyes
1 Replies

3. UNIX for Dummies Questions & Answers

how to find common words and take them out from two files

Hi, everyone, Let's say, we have xxx.txt A 1 2 3 4 5 C 1 2 3 4 5 E 1 2 3 4 5 yyy.txt A 1 2 3 4 5 B 1 2 3 4 5 C 1 2 3 4 5 D 1 2 3 4 5 E 1 2 3 4 5 First I match the first column I find intersection (A,C, E), then I want to take those lines with ACE out from yyy.txt, like A 1... (11 Replies)
Discussion started by: kaixinsjtu
11 Replies

4. Shell Programming and Scripting

Script to find NOT common strings in two files

Hi all, I'd like you to help or give any advise about the following: I have two (2) files, file1 and file2, both files have information common to each other. The contents of file1 is a subset of the contents of file2: file1: errormsgadmin esdp esgservices esignipa iprice ipvpn irm... (18 Replies)
Discussion started by: hnux
18 Replies

5. UNIX for Dummies Questions & Answers

Writing a loop to merge multiple files by common column

I have 100 data files labelled 250.1.txt through 250.100.txt. The second column of the data files partially match (there is about %90 overlap). Each data file has 4 columns. I want the merge all these text files by the matching values in the second column. In the output, the first column should... (1 Reply)
Discussion started by: evelibertine
1 Replies

6. Shell Programming and Scripting

Find Common Values Across Two Files

Hi All, I have two files like below: File1 MYFILE_28012012_1112.txt|4 MYFILE_28012012_1113.txt|51 MYFILE_28012012_1114.txt|57 MYFILE_28012012_1115.txt|57 MYFILE_28012012_1116.txt|57 MYFILE_28012012_1117.txt|57 File2 MYFILE_28012012_1110.txt|57 MYFILE_28012012_1111.txt|57... (2 Replies)
Discussion started by: angshuman
2 Replies

7. UNIX for Dummies Questions & Answers

Merging tables: identifiying common and unique elements

Hi all, I know how to merge two tables and to remove the duplicated lines based on a field (Column 2) . My next challenge is to be able to identify in a new column those common elements between table A & B, those elements in table A not present in table B and vice versa. A simple count would be... (6 Replies)
Discussion started by: lsantome
6 Replies

8. Shell Programming and Scripting

Count common elements in a column

HI, I have a 3-column tab separated column (approx 1GB) in which I would like to count and output the frequency of all of the common elements in the 1st column. For instance: If my input was the following: dot is-big 2 dot is-round 3 dot is-gray 4 cat is-big 3 hot in-summer 5 My... (4 Replies)
Discussion started by: owwow14
4 Replies

9. Shell Programming and Scripting

Find common files between two directories

I have two directories Dir 1 /home/sid/release1 Dir 2 /home/sid/release2 I want to find the common files between the two directories Dir 1 files /home/sid/release1>ls -lrt total 16 -rw-r--r-- 1 sid cool 0 Jun 19 12:53 File123 -rw-r--r-- 1 sid cool 0 Jun 19 12:53... (5 Replies)
Discussion started by: sidnow
5 Replies
DIFF3(1)						      General Commands Manual							  DIFF3(1)

NAME
diff3 - 3-way differential file comparison SYNOPSIS
diff3 [ -ex3 ] file1 file2 file3 DESCRIPTION
Diff3 compares three versions of a file, and publishes disagreeing ranges of text flagged with these codes: ==== all three files differ ====1 file1 is different ====2 file2 is different ====3 file3 is different The type of change suffered in converting a given range of a given file to some other is indicated in one of these ways: f : n1 a Text is to be appended after line number n1 in file f, where f = 1, 2, or 3. f : n1 , n2 c Text is to be changed in the range line n1 to line n2. If n1 = n2, the range may be abbreviated to n1. The original contents of the range follows immediately after a c indication. When the contents of two files are identical, the contents of the lower-numbered file is suppressed. Under the -e option, diff3 publishes a script for the editor ed that will incorporate into file1 all changes between file2 and file3, i.e. the changes that normally would be flagged ==== and ====3. Option -x (-3) produces a script to incorporate only changes flagged ==== (====3). The following command will apply the resulting script to `file1'. (cat script; echo '1,$p') | ed - file1 FILES
/tmp/d3????? /usr/lib/diff3 SEE ALSO
diff(1) BUGS
Text lines that consist of a single `.' will defeat -e. Files longer than 64K bytes won't work. DIFF3(1)
All times are GMT -4. The time now is 02:16 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy