Sponsored Content
Top Forums Shell Programming and Scripting AWK: combining consecutive values in a field Post 302543124 by polsum on Friday 29th of July 2011 03:41:19 PM
Old 07-29-2011
AWK: combining consecutive values in a field

Hi,

Here is my sample input

X 2 AAA
Y 3 BBB
Y 2 CCC
Z 4 DDD
In field 1, if the value of one line is same as that of next line, I want to concatenate the corresponding value of the second line in the third field with the value of the third field of first line. And I dont need the third line in the out put. phew!

Needed Output

X 2 AAA
Y 3 BBB_CCC
Z 4 DDD
I am a biologist and have no Idea regarding awk scripting. So please dont ask me what I have tried Smilie

Thank you very much in advance.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Awk search for max and min field values

hi, i have an awk script and I managed to figure out how to search the max value but Im having difficulty in searching for the min field value. BEGIN {FS=","; max=0} NF == 7 {if (max < $6) max = $6;} END { print man, min} where $6 is the column of a field separated by a comma (3 Replies)
Discussion started by: Kirichiko
3 Replies

2. Shell Programming and Scripting

concatenate consecutive field values

Hi, I have a file like this A Bob A Sam A John B David C Paul C Sandra If the consecutive field values in column one is same, then concatenate the corresponding strings. So, I need an output like this, A Bob_Sam_John B David C Paul_Sandra I usually work with excel but... (3 Replies)
Discussion started by: polsum
3 Replies

3. Shell Programming and Scripting

How to compare the values of a column in awk in a same file and consecutive lines..

I would like to compare the values of 2nd column of consecutive lines of same file in such a way so that if the difference between first value and second value is more than 100 it should print complete line else ignore line. Input File ========== PDB 2500 RTDB 123 RTDB-EAGLE 122 VSCCP 2565... (4 Replies)
Discussion started by: manuswami
4 Replies

4. Shell Programming and Scripting

Putting values into order in a field using awk

Hi, I am using UBUNTU 12.04. I have a dataset as follows: Column#1 Column#2 Column#3 .... Column#50 1 154878 1 145145 2 189565 2 454121 ... (5 Replies)
Discussion started by: Homa
5 Replies

5. Shell Programming and Scripting

awk help - matching a field with certail values

Hello there, I have a file with few fields separated by ":". I wrote a below awk to manipulate this file: awk 'BEGIN { FS=OFS=":" }\ NR != 1 && $2 !~ /^98/ && $8 !~ /^6/{print $0}' $in_file > $out_file What I wanted was that if $8 field contains any of the values - 6100, 6110, 6200 -... (2 Replies)
Discussion started by: juzz4fun
2 Replies

6. UNIX for Dummies Questions & Answers

Values with common field in same line with awk

Hi all ! I almost did it but got a small problem. input: cars red cars blue cars green truck black Wanted: cars red-blue-green truck black Attempt: gawk 'BEGIN{FS="\t"}{a = a (a?"-":"")$2; $2=a; print $1 FS $2}' input But I also got the intermediate records... (2 Replies)
Discussion started by: beca123456
2 Replies

7. Shell Programming and Scripting

awk print values between consecutive lines

I have a file in below format: file01.txt TERM TERM TERM ABC 12315 68.53 12042013 165144 ABC 12315 62.12 12042013 165145 ABC 12315 122.36 12052013 165146 ABC 12315 582.18 12052013 165147 ABC 12316 2.36 12052013 165141 ABC 12316 ... (8 Replies)
Discussion started by: alex2005
8 Replies

8. UNIX for Dummies Questions & Answers

Generating all possible combinations of values in field 1 (awk)

Input: A|1 B|2 C|3 D|4 Output: A+B|3 A+C|4 A+D|5 B+C|5 B+D|6 C+D|7 A+B+C|6 A+B+D|7 A+C+D|8 B+C+D|9 A+B+C+D|10 I only managed to get the output for pairs of $1 values (i.e. combination of length 2): (4 Replies)
Discussion started by: beca123456
4 Replies

9. Shell Programming and Scripting

Insert field values in a record using awk command

Hi Friends, Below is my input file with "|" (pipe) as filed delimiter: My Input File: HDR|F1|F2||||F6|F7 I want to inser values in the record for field 4 and field 5. Expected output HDR|F1|F2||F4|F5|F6|F7 I am able to append the string to the end of the record, but not in between the... (3 Replies)
Discussion started by: Ajay Venkatesan
3 Replies

10. UNIX for Beginners Questions & Answers

awk - If field value of consecutive records are the identical print portion of lines

I have some data that looks like this: PXD= ZW< 1,6 QR> QRJ== 1,2(5) QR> QRJ== 4,1(2) QR> QRJ== 4,2 QRB= QRB 4,2 QWM QWM 6,2 R<C ZW< 11,2 R<H= R<J= 6,1 R>H XZJ= 1,2(2) R>H XZJ= 2,6(2) R>H XZJ= 4,1(2) R>H XZJ= 6,2 RDP RDP 1,2 What I would like to do is if fields $1 and $2 are... (5 Replies)
Discussion started by: jvoot
5 Replies
CREATE FOREIGN 
TABLE(7) PostgreSQL 9.2.7 Documentation CREATE FOREIGN TABLE(7) NAME
CREATE_FOREIGN_TABLE - define a new foreign table SYNOPSIS
CREATE FOREIGN TABLE [ IF NOT EXISTS ] table_name ( [ { column_name data_type [ OPTIONS ( option 'value' [, ... ] ) ] [ NULL | NOT NULL ] } [, ... ] ] ) SERVER server_name [ OPTIONS ( option 'value' [, ... ] ) ] DESCRIPTION
CREATE FOREIGN TABLE will create a new foreign table in the current database. The table will be owned by the user issuing the command. If a schema name is given (for example, CREATE FOREIGN TABLE myschema.mytable ...) then the table is created in the specified schema. Otherwise it is created in the current schema. The name of the foreign table must be distinct from the name of any other foreign table, table, sequence, index, or view in the same schema. CREATE FOREIGN TABLE also automatically creates a data type that represents the composite type corresponding to one row of the foreign table. Therefore, foreign tables cannot have the same name as any existing data type in the same schema. To be able to create a table, you must have USAGE privilege on all column types. PARAMETERS
IF NOT EXISTS Do not throw an error if a relation with the same name already exists. A notice is issued in this case. Note that there is no guarantee that the existing relation is anything like the one that would have been created. table_name The name (optionally schema-qualified) of the table to be created. column_name The name of a column to be created in the new table. data_type The data type of the column. This can include array specifiers. For more information on the data types supported by PostgreSQL, refer to Chapter 8, Data Types, in the documentation. NOT NULL The column is not allowed to contain null values. NULL The column is allowed to contain null values. This is the default. This clause is only provided for compatibility with non-standard SQL databases. Its use is discouraged in new applications. server_name The name of an existing server for the foreign table. OPTIONS ( option 'value' [, ...] ) Options to be associated with the new foreign table or one of its columns. The allowed option names and values are specific to each foreign data wrapper and are validated using the foreign-data wrapper's validator function. Duplicate option names are not allowed (although it's OK for a table option and a column option to have the same name). EXAMPLES
Create foreign table films with film_server: CREATE FOREIGN TABLE films ( code char(5) NOT NULL, title varchar(40) NOT NULL, did integer NOT NULL, date_prod date, kind varchar(10), len interval hour to minute ) SERVER film_server; COMPATIBILITY
The CREATE FOREIGN TABLE command largely conforms to the SQL standard; however, much as with CREATE TABLE, NULL constraints and zero-column foreign tables are permitted. SEE ALSO
ALTER FOREIGN TABLE (ALTER_FOREIGN_TABLE(7)), DROP FOREIGN TABLE (DROP_FOREIGN_TABLE(7)), CREATE TABLE (CREATE_TABLE(7)), CREATE SERVER (CREATE_SERVER(7)) PostgreSQL 9.2.7 2014-02-17 CREATE FOREIGN TABLE(7)
All times are GMT -4. The time now is 10:08 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy