awk or grep to search one column and output the other
Hello,
it would be great if someone can help me with the following:
I want to search for the rows from fileA in column 1 of fileB and output column 2 of fileB if found in fileC. In the moment I search within the complete file. How can I change the code so only column 1 is searched?
Last edited by Scott; 07-20-2013 at 04:47 AM..
Reason: Code tags
Hi,
I have a file that has many columns. Let us say "Employee_number" "Employee_name" "Salary". I want to display all entries in a column by giving all or part of the column name. For example if I input "name" I want all the employee names printed. Is it possible to do this in a simple manner... (2 Replies)
Hi friends ,
I am new to unix ,need your help to fix this
there is a ~ deliminated file. how to find the 5th column of the row.
awk 'print $5 ' abc.txt
it doesnot work . it works for table deliminated file. My data file is like the following manner.
abc.txt
--------
a~b~c~d~e~f... (3 Replies)
I have a data in a file like this
1 praveen bmscollege
2 shishira bnmit
3 parthiva geethamce
I want to search "praveen" using awk command i tried like this but i did not get
awk `$2="praveen" {print $0} ` praveen.lst
can anyone help me solving this problem in... (2 Replies)
I am trying to search a given text in a file and find its last occurrence index. The task is to append the searched index in the same file but in a separate column. I am able to accomplish the task partially and looking for a solution.
Following is the detailed description:
names_file.txt
... (17 Replies)
Hi have a large spreadsheet which has 4 columns
APM00111803814 server_2 96085 Corp IT Desktop and Apps
APM00111803814 server_2 96085 Corp IT Desktop and Apps
APM00111803814 server_2 96034 Storage Mgmt Team
APM00111803814 server_2 96152 GWP... (6 Replies)
Want to search a pattern in column
using the below command which not helpful
awk -F"\|" '$1 == '"${VAR}"' {print $1,$2}' file
how to search using "==" with variable other than the below case.
awk -F"\|" '$1 ~ /'"${VAR}"'/ {print $1,$2}' file (14 Replies)
Hello,
I have a comma seperate metadata as follows:
CITY ,COUNTY,STATE,COUNTRY
NEW_YORK,NYC ,NY ,USA
NEWARK ,ESSEX ,NJ ,USA
CHICAGO ,COOK ,IL ,USA
SEATTLE ,MINER ,WA ,USA
In my process, I get two key values ie
CITY NAME (can be one of the... (7 Replies)
I'm interested to match column pattern through awk using an external variable for data:
-9 1:751343:T:A -9 0 T A 0.726 -5.408837e-03 9.576603e-03 7.967536e-01 5.722312e-01
-9 1:751756:T:C -9 0 T C 0.727 -5.360458e-03 9.579447e-03 7.966977e-01 5.757858e-01... (7 Replies)
Hello,
Similar question to my previous posts. I am sorry for the trouble...
Just checked my old threads but I can not implement any solution into this case..
My aim is to grab each line in fileA, check it in fileB and merge with fileC (tab separated) in corresponding line as given below:
FileA:... (2 Replies)
Discussion started by: baris35
2 Replies
LEARN ABOUT CENTOS
spi_modifytuple
SPI_MODIFYTUPLE(3) PostgreSQL 9.2.7 Documentation SPI_MODIFYTUPLE(3)NAME
SPI_modifytuple - create a row by replacing selected fields of a given row
SYNOPSIS
HeapTuple SPI_modifytuple(Relation rel, HeapTuple row, int ncols,
int * colnum, Datum * values, const char * nulls)
DESCRIPTION
SPI_modifytuple creates a new row by substituting new values for selected columns, copying the original row's columns at other positions.
The input row is not modified.
ARGUMENTS
Relation rel
Used only as the source of the row descriptor for the row. (Passing a relation rather than a row descriptor is a misfeature.)
HeapTuple row
row to be modified
int ncols
number of column numbers in the array colnum
int * colnum
array of the numbers of the columns that are to be changed (column numbers start at 1)
Datum * values
new values for the specified columns
const char * Nulls
which new values are null, if any (see SPI_execute_plan for the format)
RETURN VALUE
new row with modifications, allocated in the upper executor context; NULL only if row is NULL
On error, SPI_result is set as follows:
SPI_ERROR_ARGUMENT
if rel is NULL, or if row is NULL, or if ncols is less than or equal to 0, or if colnum is NULL, or if values is NULL.
SPI_ERROR_NOATTRIBUTE
if colnum contains an invalid column number (less than or equal to 0 or greater than the number of column in row)
PostgreSQL 9.2.7 2014-02-17 SPI_MODIFYTUPLE(3)