How to (n)awk lines of CSV with certain number of fields?
I have a CSV file with a variable number of fields per record. How do I print lines of a certain number of fields only? Several permutations of the following (including the use of escape characters) have failed to retrieve the line I'm after (1,2,3,4)...
Any ideas? Thanks in advance...
---------- Post updated at 02:48 PM ---------- Previous update was at 02:42 PM ----------
Hi there, been pondering how to deal with this and hoping someone would give me an insight on this.
I need help on creating a reusable bash funtion to parse csv files containing different number of fields (comma-seperated).
My initial thought is to create function for each input csv file (20+... (2 Replies)
I'm working on formatting some attendance data to meet a vendors requirements to upload to their system. With some help on the forums here, I have the data close. But they've since changed what they want.
The vendor wants me to submit three fields to them. Field 1 is the studentid field,... (4 Replies)
hi, i really need it ...it's not simple to explain but as it's part of a crontab i can't split the file manually...and the file can change every day so the lines are not a good base.
example: how to split 1 csv file in 15 files?
thank you very much
regards :b: (4 Replies)
Hi Fellows,
I have been struggling to fix an issue in csv records to compose sql statements and have been really losing sleep over it. Here is the problem:
I have csv files in the following pipe-delimited format:
Column1|Column2|Column3|Column4|NEWLINE
Address Type|some descriptive... (4 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)
I want to use awk to split fields and put them into a file
but I don't know the number of fields
for example, in the following line
Ports: 22/filtered/tcp//ssh///, 53/open/tcp//tcpwrapped///, 111/filtered/tcp//rpcbind///, 543/filtered/tcp//klogin///, 544/filtered/tcp//kshell///,... (3 Replies)
Hi,
With:
# VALUES="one~two~~~"
# echo $VALUES | awk 'BEGIN {FS="~"} {print NF}'
5
I can determine the number of fields.
How to determine the number of fields with a value ?
In this case 2.
Thanks in advance,
ejdv (6 Replies)
If a file has following kind of data, comma delimited
1,2,3,4
1
1
1,2,3,4
1,2
2
2,3,4
My required output must have only 4 columns with comma delimited
1,2,3,4
111,2,3,4
1,222,3,4
I have tried many awk command using ORS="" but couldnt progress (10 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)
In the awk below, what I am attempting to do is check each line in the tab-delimeted input, which has ~20 lines in it, for a keyword
SVTYPE=Fusion. If the keyword is found I am splitting $3 using the . (dot) and reading the portion before and after the dot in an array a.
If it does have that... (12 Replies)
Discussion started by: cmccabe
12 Replies
LEARN ABOUT DEBIAN
anydata::format::csv
AnyData::Format::CSV(3pm) User Contributed Perl Documentation AnyData::Format::CSV(3pm)NAME
AnyData::Format::CSV - tiedhash & DBI/SQL access to CSV data
SYNOPSIS
use AnyData;
my $table = adTable( 'CSV', $filename,'r',$flags );
while (my $row = each %$table) {
print $row->{name},"
" if $row->{country} =~ /us|mx|ca/;
}
# ... other tied hash operations
OR
use DBI
my $dbh = DBI->connect('dbi:AnyData:');
$dbh->func('table1','CSV', $filename,$flags,'ad_catalog');
my $hits = $dbh->selectall_arrayref( qq{
SELECT name FROM table1 WHERE country = 'us'
});
# ... other DBI/SQL operations
DESCRIPTION
This is a plug-in format parser for the AnyData and DBD::AnyData modules. It will read column names from the first row of the file, or
accept names passed by the user. In addition to column names, the user may set other options as follows:
col_names : a comma separated list of column names
eol : the end of record mark,
by default
quote_char : the character used to quote fields " by default
escape_char : the character used to escape the quote char, " by default
If you are using this with DBD::AnyData, put ad_ in front of the flags, e.g. ad_eol.
Please refer to the documentation for AnyData.pm and DBD::AnyData.pm for further details.
AUTHOR & COPYRIGHT
copyright 2000, Jeff Zucker <jeff@vpservices.com> all rights reserved
perl v5.10.1 2004-08-17 AnyData::Format::CSV(3pm)