comm is the ideal candidate for doing the job. It is faster than awk.
ourput consists of three columns as shown.
You can skip the particular column by giving it's number as option to comm.
skips both 1 & 2 and gives you the common contents of both files. (3 row)
For your job the command would be:
gives the list of deleted records in new_file.
row 1 : contains the elements unique to file_orig (not there in file_new)
I have a flat file like this
0001 THER ULT HEAD & NECK VES
0002 THER ULTRASOUND OF HEART
0003 THER ULT PERIPHERAL VES
0009 OTHER THERAPEUTIC ULTSND
0010 IMPLANT CHEMOTHERA AGENT
0011 INFUS DROTRECOGIN ALFA
0012 ADM INHAL NITRIC OXIDE
I need to conver this to a comma delimited flat file... (2 Replies)
Hi All,
I am giving an example similar to the problem I have.
I have two data files of 10 columns each in which fields are delimited by comma(,). I need to compare compare the two files using the uniq col(col3). If there are any records in file1 and are not in file2 then I have check the value... (3 Replies)
Hi,
I need to compare two flat files (yesterday & today's data) and get only the changed data from flat files. In flat file i dont have data column or anything its just a string data in flat file.Can any one please let me know the script
With Regds
Shashi (3 Replies)
Hi Gurus,
I searched the forum but didnt get much info.
I want to compare 2 files.
1)Newfile comes today with
2)Old file of previous day.
The files are same ,just the new files might have new records sometimes.
So I want to capture these new records in another file.
Can anyone help... (5 Replies)
Before i start doing something, I wanted to know whether the approach to compare XML file with UNIX file system structure. I have a pre-configured file(contains a list of paths to executables) and i need to check against the UNIX directory structure. what are the various approches should i use ? I... (6 Replies)
Hello,
I am strugling from quite a some time to compare flat files with over 1 million records could anyone please help me.
I want to compare two pipe delimited flat files, file1 with file2 and output the unmatched rows from file2 in file3
Sample File1:
... (9 Replies)
I have four files, I need to compare these files together.
As such i know "sdiff and comm" commands but these commands compare 2 files together. If I use sdiff command then i have to compare each file with other which will increase the codes.
Please suggest if you know some commands whcih can... (6 Replies)
Hi,
I'm a newbie to scripting and am trying to compare two files using awk.
The files are exactly the same dimensions. Where the first file has 0's I would like to create an updated version of the second file which has the corresponding elements set to zero also.
eg:
file1:
12345 1 2 0... (3 Replies)
compare to flat files using awk .but in 4th field contains non ordered substring. how to do that.
file1.txt
john|0.0|4|**:25;JP:50;UY:25
file2.txt
andy|0.0|4|JP:50;**:25;UY:25 (4 Replies)
How to convert this:
F1-R1 F1-R2 F1-R3 into a flat file for bash?? Each record
F2-R1 F2-R2 F2-R3
F3-R1 F3-R2 F3-R3
F4-R1 F4-R2 F4-R3is on one line with all fields for that record, put into an output file. The output file should look like this when converted:
F1-R1,F2-R1,F3-R1,F4-R1... (6 Replies)
Discussion started by: bud1738
6 Replies
LEARN ABOUT HPUX
comm
comm(1) General Commands Manual comm(1)NAME
comm - select or reject lines common to two sorted files
SYNOPSIS
file1 file2
DESCRIPTION
comm reads file1 and file2, which should be ordered in increasing collating sequence (see sort(1) and Environment Variables below), and
produces a three-column output:
Column 1: Lines that appear only in file1,
Column 2: Lines that appear only in file2,
Column 3: Lines that appear in both files.
If is used for file1 or file2, the standard input is used.
Options 1, 2, or 3 suppress printing of the corresponding column. Thus prints only the lines common to the two files; prints only lines in
the first file but not in the second; does nothing useful.
EXTERNAL INFLUENCES
Environment Variables
determines the collating sequence expects from the input files.
determines the language in which messages are displayed.
If is not specified in the environment or is set to the empty string, the value of determines the language in which messages are displayed.
If is not specified in the environment or is set to the empty string, the value of is used as a default. If is not specified or is set to
the empty string, a default of ``C'' (see lang(5)) is used instead of If any internationalization variable contains an invalid setting,
behaves as if all internationalization variables are set to ``C''. See environ(5).
International Code Set Support
Single- and multi-byte character code sets are supported.
EXAMPLES
The following examples assume that and have been ordered in the collating sequence defined by the or environment variable.
Print all lines common to and (in other words, print column 3):
Print all lines that appear in but not in (in other words, print column 1):
Print all lines that appear in but not in (in other words, print column 2):
SEE ALSO cmp(1), diff(1), sdiff(1), sort(1), uniq(1).
STANDARDS CONFORMANCE comm(1)