I need to insert data into a perticular field of a csv file, lets say second field.
Can any one help me to do this?
I found that we can do it with sed. can any one guide me to accomplish this?
thanks in advance. (12 Replies)
SHELL SCRIPT
Hi,
I have 3 separate files within a folder. Every File contains data in a single column like
File1 contains data
mayank
sushant
dheeraj
File2 contains
DSA_AT
MG_AT
FLAT_09
File3 contains data
123123
232323 (2 Replies)
Hi,
I have a requirment where I need to pull different columns from a .csv file.
Here is the sample of the csv file.
account,item,flag1,flag2,flag3,flag4,flag5,......feed,tran
I will be have a config.txt file which will have the following information.
item,flag5,flag10,feed,tran... (2 Replies)
Hi All,
I want to remove the rows from File1.csv by comparing the columns/fields in the File2.csv. I only need the records whose first column is same and the second column is different for the same record in both files.Here is an example on what I need.
File1.csv:
RAJAK|ACTIVE|1... (2 Replies)
Hello
I have a csv file which I need to insert addtional commas into. The csv is of the format
field1,field2,field3,field4,...etc...,field13,field14
I need to add extra commas in each record so that the final output looks like
... (1 Reply)
Hi Tech Guru,
I have a test file as below , which needs some more fields to be populated randomly :
dks3243;12;20130823;1420;25m;0;syt
dks3243;rocy;10
dks3243;kiop;18
sde21p4;77;20151210;8479;7py;9;vfr
sde21p4;temp;67
sfq6i01;12;20120123;3412;4rd;7;jui
sfq6i01;uymk;90
sfq6i01;kiop;51
... (8 Replies)
Hi,
i have a csv file which have headers and values of it like below :
headers --> CI Ref SerialNumber LastScanDate
values --> VMware-42,VMware-42,Tue, 20 May 2014 11:03:44 +0000
i want to have a above csv in below format :
headers --> CI Name CI Description CI Ref... (6 Replies)
I have a csv file which is produced out of a SED command sed 's/|/","/g; s/^/"/; s/$/"/' A4.txt > A5.csv and I need either an addition to the SED command or a separate command to convert the following characters which occur within the fields in multiple lines
1) "=" to ="
and
2)""~ to " (4 Replies)
I'm trying to use awk to count the occurrences of two matching fields of a CSV file.
For instance, for data that looks like this...
Joe,Blue,Yes,No,High
Mike,Blue,Yes,Yes,Low
Joe,Red,No,No,Low
Joe,Red,Yes,Yes,Low
I've been trying to use code like this...
countvar=`awk ' $2~/$color/... (4 Replies)
I am trying to parse two csv files and make a match in one column then print the entire file to a new file and append an additional column that gives description from the match to the new file. If a match is not made, I would like to add "NA" to the end of the file
Command that Ive been using... (6 Replies)
Discussion started by: dis0wned
6 Replies
LEARN ABOUT REDHAT
csv
csv(n) CSV processing csv(n)
NAME
csv - Procedures to handle CSV data.
SYNOPSIS
package require Tcl 8.3
package require csv ?0.3?
::csv::join values {sepChar ,}
::csv::joinlist values {sepChar ,}
::csv::read2matrix chan m {sepChar ,} {expand none}
::csv::read2queue chan q {sepChar ,}
::csv::report cmd matrix ?chan?
::csv::split line {sepChar ,}
::csv::split2matrix m line {sepChar ,} {expand none}
::csv::split2queue q line {sepChar ,}
::csv::writematrix m chan {sepChar ,}
::csv::writequeue q chan {sepChar ,}
DESCRIPTION
The csv package provides commands to manipulate information in CSV FORMAT (CSV = Comma Separated Values).
COMMANDS
The following commands are available:
::csv::join values {sepChar ,}
Takes a list of values and returns a string in CSV format containing these values. The separator character can be defined by the
caller, but this is optional. The default is ",".
::csv::joinlist values {sepChar ,}
Takes a list of lists of values and returns a string in CSV format containing these values. The separator character can be defined
by the caller, but this is optional. The default is ",". Each element of the outer list is considered a record, these are separated
by newlines in the result. The elements of each record are formatted as usual (via ::csv::join).
::csv::read2matrix chan m {sepChar ,} {expand none}
A wrapper around ::csv::split2matrix (see below) reading CSV-formatted lines from the specified channel (until EOF) and adding them
to the given matrix. For an explanation of the expand argument see ::csv::split2matrix.
::csv::read2queue chan q {sepChar ,}
A wrapper around ::csv::split2queue (see below) reading CSV-formatted lines from the specified channel (until EOF) and adding them
to the given queue.
::csv::report cmd matrix ?chan?
A report command which can be used by the matrix methods format 2string and format 2chan. For the latter this command delegates the
work to ::csv::writematrix. cmd is expected to be either printmatrix or printmatrix2channel. The channel argument, chan, has to be
present for the latter and must not be present for the first.
::csv::split line {sepChar ,}
converts a line in CSV format into a list of the values contained in the line. The character used to separate the values from each
other can be defined by the caller, via sepChar, but this is optional. The default is ",".
::csv::split2matrix m line {sepChar ,} {expand none}
The same as ::csv::split, but appends the resulting list as a new row to the matrix m, using the method add row. The expansion mode
specified via expand determines how the command handles a matrix with less columns than contained in line. The allowed modes are:
none This is the default mode. In this mode it is the responsibility of the caller to ensure that the matrix has enough columns to
contain the full line. If there are not enough columns the list of values is silently truncated at the end to fit.
empty In this mode the command expands an empty matrix to hold all columns of the specified line, but goes no further. The overall
effect is that the first of a series of lines determines the number of columns in the matrix and all following lines are
truncated to that size, as if mode none was set.
auto In this mode the command expands the matrix as needed to hold all columns contained in line. The overall effect is that after
adding a series of lines the matrix will have enough columns to hold all columns of the longest line encountered so far.
::csv::split2queue q line {sepChar ,}
The same as ::csv::split, but appending the resulting list as a single item to the queue q, using the method put.
::csv::writematrix m chan {sepChar ,}
A wrapper around ::csv::join taking all rows in the matrix m and writing them CSV formatted into the channel chan.
::csv::writequeue q chan {sepChar ,}
A wrapper around ::csv::join taking all items in the queue q (assumes that they are lists) and writing them CSV formatted into the
channel chan.
FORMAT
Each record of a csv file (comma-separated values, as exported e.g. by Excel) is a set of ASCII values separated by ",". For other lan-
guages it may be ";" however, although this is not important for this case (The functions provided here allow any separator character).
If a value contains itself the separator ",", then it (the value) is put between "".
If a value contains ", it is replaced by "".
EXAMPLE
The record
123,"123,521.2","Mary says ""Hello, I am Mary"""
is parsed as follows:
a) 123
b) 123,521.2
c) Mary says "Hello, I am Mary"
SEE ALSO
matrix, queue
KEYWORDS
csv, matrix, queue, package, tcllib
csv 0.3 csv(n)