Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Comparing Columns and printing the difference from a particular file
Top Forums Shell Programming and Scripting Comparing Columns and printing the difference from a particular file Post 302386589 by alister on Tuesday 12th of January 2010 09:42:08 PM
Old 01-12-2010
Hello, rdcwayx:

The empty for loop compares the relevant fields ($2 through $(NF-1) ... NF is always empty) and stops when either a difference has been found or we've run out of fields to compare. If we ran out of fields to compare, i equals NF and i<NF will be false. In this case, nothing happens, as desired. If instead the for loop terminates due to a difference between $2 and some relevant field, $i, then i<NF will be true and the default action of print $0 will be executed.

Hope that clears it up.

Take care,
alister
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Help with comparing columns from a csv file

Hi there, I have an csv file. I want to compare the 16th and 18th columns. They contain alpha numeric characters. Some are same and some are different. We have to pick the ones which are different. But with certain rules. 16th col. 18th col. ---------- ... (1 Reply)
Discussion started by: sickboy
1 Replies

2. Shell Programming and Scripting

Columns comparision of two large size files and printing the difference

Hi Experts, My requirement is to compare the second field/column in two files, if the second column is same in both the files then compare the first field. If the first is not matching then print the first and second fields of both the files. first file (a .txt) < 1210018971FF0000,... (6 Replies)
Discussion started by: krao
6 Replies

3. UNIX Desktop Questions & Answers

COMPARING COLUMNS IN A TEXT FILE

Hi, Good day. I currently have this data called database.txt and I would like to check if there are no similar values (all unique) on an entire row considering the whole column data is unique. the data is as follows cL1 cL2 cL3 cL4 a12 c13 b13 c15 b11 a15 c19 b11 c15 c17 b13 f14 with... (1 Reply)
Discussion started by: whitecross
1 Replies

4. UNIX for Dummies Questions & Answers

Comparing the 2nd column in two different files and printing corresponding 9th columns in new file

Dear Gurus, I am very new to UNIX. I appreciate your help to manage my files. I have 16 files with equal number of columns in it. Each file has 9 columns separated by space. I need to compare the values in the second column of first file and obtain the corresponding value in the 9th column... (12 Replies)
Discussion started by: Unilearn
12 Replies

5. Shell Programming and Scripting

Comparing columns in a file

I have two files. One a small one and another one is big. The smaller one look like this: Filename: 1.tmp 3453 0 326543 1 2321 0 3212 1 The big file looks like this: Filename 1.res 0.3232 2321 9.2922 123 0.983 3212 8.373 326543 0.9 3453 1.098 3432 I want to extract those lines... (2 Replies)
Discussion started by: shoaibjameel123
2 Replies

6. Shell Programming and Scripting

Comparing text in 2 files and output difference in another file.

I have 2 files of almost same text apart from 2,3 ending lines. Now I want to get that difference in another file. e.g file1.txt is Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_livecd-lv_root 18G 2.4G 15G 14% / tmpfs 504M ... (12 Replies)
Discussion started by: kashif.live
12 Replies

7. Shell Programming and Scripting

Comparing Columns and writing a new file

I have a table with one column File1.txt 1 2 3 4 5 6 7 8 9 10 Another table with two columns; This has got a subset of entries from File 1 but not unique because they have differing values in col 2. File2.txt 1 a 2 d 2 f 6 r 6 e (3 Replies)
Discussion started by: cs_novice
3 Replies

8. Shell Programming and Scripting

Comparing two files with numbers and taking difference in third file

Hi All, I have two files in the following format, with numbers being defined under columns(described by a set of headers) and rows(again defined by a set of identifiers) 2013 2013 Make200 Make201 Merc BMW Jpur Del ... (9 Replies)
Discussion started by: dev.devil.1983
9 Replies

9. Shell Programming and Scripting

Awk: Comparing arguments with in line values of file and printing the result

I need to develop a script where I will take two date arguments as parameter date1 and date2 which will in format YYYYMM. Below is the input file say sample.txt. sample.txt will have certain blocks starting with P1. Each block will have a value 118,1:TIMESTAMP. I need to compare the... (7 Replies)
Discussion started by: garvit184
7 Replies

10. Shell Programming and Scripting

Comparing two columns in two files and printing a third based on a match

Hello all, First post here. I did not notice a previous post to help me down the right path. I am looking to compare a column in a CSV file against another file (which is not a column match one for one) but more or less when a match is made, I would like to append a third column that contains a... (17 Replies)
Discussion started by: dis0wned
17 Replies

LEARN ABOUT OPENSOLARIS

mp_compareoids

MP_CompareOIDs(3MPAPI)				   Common Multipath Management Library Functions			    MP_CompareOIDs(3MPAPI)

NAME

       MP_CompareOIDs - compare two object IDs

SYNOPSIS

       cc [ flag... ] file... -lMPAPI [ library... ]
       #include <mpapi.h>

       MP_STATUS MP_CompareOIDs(MP_OID oid1, MP_OID oid2);

PARAMETERS

       oid1    An object ID that has type MP_OIDs for two objects to compare.

       oid2    An object ID that has type MP_OIDs for two objects to compare.

DESCRIPTION

       The  MP_CompareOIDs()  function compares two object IDs (OIDs) for equality to see whether they refer to the same object. The fields in the
       two object IDs are compared field-by-field for equality.

RETURN VALUES

       MP_STATUS_FAILED    The object IDs do not compare.

       MP_STATUS_SUCCESS    The two object IDs refer to the same object.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard: ANSI  INCITS  412  |
       |			     |Multipath Management API	   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       libMPAPI(3LIB), attributes(5)

       Multipath Management API Version 1.0

SunOS 5.11							    15 Feb 2006 					    MP_CompareOIDs(3MPAPI)
All times are GMT -4. The time now is 06:50 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy