hi.. I want to compare records present in 1 file with those in 3 other files and print those records of file 1 which are not present in any of the files. for eg -
nawk 'NR==FNR{a[$0]++;next} !a[$0] or !a[$0] or !a[$0]' file1 file2 file3 file4
i am using this code but i dont think it is correct.. problem arised when the file which i wanted to compare was huge and nawk ran out of space giving out of space tostring error.. so now i have splitted the file into 3 parts and then comparing.. also can we have different names for arrays used in this script to avoid the similar situation. I am using solaris system..
I'm trying to compare the first column values in two different files that use a numerical value as the key and output the more meaningful value found in the second column of file1 in front of the matching line(s) in file2. My problem is that file2 has multiple records. For example given:
FILE1... (4 Replies)
Using awk I have an index file which has been seperated into 5 fields. The first field contains file names. What I need to do is check to see if a file exists in my current directory that is not in the first field of my index file. If its not i print out a message.
Please help! (4 Replies)
I am not an expert in awk, SED, etc... but I really hope there is a way to do this, because I don't want to have to right a program. I am using C shell.
FILE 1 FILE 2
H0000000 H0000000
MA1 MA1
CA1DDDDDD CA1AAAAAA
MA2 ... (2 Replies)
I have 2 zip files which have about 20 million records in each file. file 2 will have additional records than file 1. I want to compare the records in both the files and capture the new records from file 2 into another file file3. Please help me with a command/script which provides me the desired... (8 Replies)
Hi ,
My requirement is to Compare 2 files having different number of columns and records and get the ouptut containing all the non-matching records from File A(with all column values ) .Example data below :
File A contains following :
Aishvarya |1234... (4 Replies)
Hi,
I have a situation to compare one file, say file1.txt with a set of files in directory.The directory contains more than 100 files.
To be more precise, the requirement is to compare the first field of file1.txt with the first field in all the files in the directory.The files in the... (10 Replies)
Good morning all,
I have a problem that is one step beyond a standard awk compare.
I would like to compare three files which have several thousand records against a fourth file. All of them have a value in each row that is identical, and one value in each of those rows which may be duplicated... (1 Reply)
Hi Guys,
I wanted to compare a delimited file and positional file, for a particular key files and if it matches then append the positional file with some data.
Example:
Delimited File
--------------
Byer;Amy;NONE1;A5218257;E5218257
Byer;Amy;NONE1;A5218260;E5218260
Positional File... (3 Replies)
Hi,
I am using Sun Solaris - SunOS. I have two fixed width files shown below. I am trying to find the changes in the records in the Newfile.txt for the records where the key column matches. The first column is a key column (example: A123).
If there are any new or deletion of records in the... (4 Replies)
Discussion started by: Saanvi1
4 Replies
LEARN ABOUT OPENDARWIN
merge
MERGE(1) General Commands Manual MERGE(1)NAME
merge - three-way file merge
SYNOPSIS
merge [ options ] file1 file2 file3
DESCRIPTION
merge incorporates all changes that lead from file2 to file3 into file1. The result ordinarily goes into file1. merge is useful for com-
bining separate changes to an original. Suppose file2 is the original, and both file1 and file3 are modifications of file2. Then merge
combines both changes.
A conflict occurs if both file1 and file3 have changes in a common segment of lines. If a conflict is found, merge normally outputs a
warning and brackets the conflict with <<<<<<< and >>>>>>> lines. A typical conflict will look like this:
<<<<<<< file A
lines in file A
=======
lines in file B
>>>>>>> file B
If there are conflicts, the user should edit the result and delete one of the alternatives.
OPTIONS -A Output conflicts using the -A style of diff3(1), if supported by diff3. This merges all changes leading from file2 to file3 into
file1, and generates the most verbose output.
-E, -e These options specify conflict styles that generate less information than -A. See diff3(1) for details. The default is -E. With
-e, merge does not warn about conflicts.
-L label
This option may be given up to three times, and specifies labels to be used in place of the corresponding file names in conflict
reports. That is, merge -L x -L y -L z a b c generates output that looks like it came from files x, y and z instead of from files
a, b and c.
-p Send results to standard output instead of overwriting file1.
-q Quiet; do not warn about conflicts. -V Print 's version number.
DIAGNOSTICS
Exit status is 0 for no conflicts, 1 for some conflicts, 2 for trouble.
IDENTIFICATION
Author: Walter F. Tichy.
Manual Page Revision: 1.1.1.1; Release Date: 2002/04/30.
Copyright (C) 1982, 1988, 1989 Walter F. Tichy.
Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995 Paul Eggert.
SEE ALSO diff3(1), diff(1), rcsmerge(1), co(1).
BUGS
It normally does not make sense to merge binary files as if they were text, but merge tries to do it anyway.
GNU 2002/04/30 MERGE(1)
02-18-2014
