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 SUNOS
comm
comm(1) User Commands comm(1)NAME
comm - select or reject lines common to two files
SYNOPSIS
comm [-123] file1 file2
DESCRIPTION
The comm utility reads file1 and file2, which must be ordered in the current collating sequence, and produces three text columns as output:
lines only in file1; lines only in file2; and lines in both files.
If the input files were ordered according to the collating sequence of the current locale, the lines written will be in the collating
sequence of the original lines. If not, the results are unspecified.
OPTIONS
The following options are supported:
-1 Suppresses the output column of lines unique to file1.
-2 Suppresses the output column of lines unique to file2.
-3 Suppresses the output column of lines duplicated in file1 and file2.
OPERANDS
The following operands are supported:
file1 A path name of the first file to be compared. If file1 is -, the standard input is used.
file2 A path name of the second file to be compared. If file2 is -, the standard input is used.
USAGE
See largefile(5) for the description of the behavior of comm when encountering files greater than or equal to 2 Gbyte ( 2**31 bytes).
EXAMPLES
Example 1: Printing a list of utilities specified by files
If file1, file2, and file3 each contain a sorted list of utilities, the command
example% comm -23 file1 file2 | comm -23 - file3
prints a list of utilities in file1 not specified by either of the other files. The entry:
example% comm -12 file1 file2 | comm -12 - file3
prints a list of utilities specified by all three files. And the entry:
example% comm -12 file2 file3 | comm -23 -file1
prints a list of utilities specified by both file2 and file3, but not specified in file1.
ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables that affect the execution of comm: LANG, LC_ALL, LC_COLLATE,
LC_CTYPE, LC_MESSAGES, and NLSPATH.
EXIT STATUS
The following exit values are returned:
0 All input files were successfully output as specified.
>0 An error occurred.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWesu |
+-----------------------------+-----------------------------+
|CSI |enabled |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
SEE ALSO cmp(1), diff(1), sort(1), uniq(1), attributes(5), environ(5), largefile(5), standards(5)SunOS 5.10 3 Mar 2004 comm(1)