Hi Friends,
I want to delete specific columns from a file.
Say my file content is as follows:
"1","a","ww1",1234"
"2","b","wwr3","2222"
"3","c","erre","3333"
Now i want to delete the column 2 and 4 from this file.
That is I want the file content to be:
"1","ww1"
"2","wwr3"... (11 Replies)
Hi,
I would like to know how can I find the number of columns in each line in a csv file.
I have a csv file wiht comma separated an dhas 10000 line in it.
I want to verify the number of columns in each line.
is there any way to find it out using awk or any other commands?
Thanks.... (2 Replies)
Hi All,
Am working on perl script which should delete columns in existing CSV file.
If my file is :
AA,BB,CC,DD
00,11,22,33
00,55,66,77
00,99,88,21
AA,BB... are all my headers can come in any order (e.g AA,CC,BB...) and rest are values. I want to delete column CC...
Can anybody help... (2 Replies)
Dear specialists out there, please help a poor awk newbie:
I have a very huge file to process consisting of 300000 columns and 1500 rows. About 20000 columns shall be deleted from that file. So it is clear, that I can't do this by writing down all the columns in an awk command like $1, $x etc.... (5 Replies)
Hi All,
I have two .csv's
input.csv having values as (7 columns)
ABC,A19907103,ABC DEV YUNG,2.17,1000,2157,07/07/2006
XYZ,H00213850,MM TRUP HILL,38.38,580,23308,31/08/2010
output.csv having (25 columns)
A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y... (4 Replies)
Hi Friends,
I have come across some files where some of the columns don not have data.
Key, Data1,Data2,Data3,Data4,Data5
A,5,6,,10,,
A,3,4,,3,,
B,1,,4,5,,
B,2,,3,4,,
If we see the above data on Data5 column do not have any row got filled. So remove only that column(Here Data5) and... (4 Replies)
Hi all, I'm pretty much a newbie to UNIX. I would appreciate any help with UNIX coding on comparing two large csv files (greater than 10 GB in size), and output a file with matching columns.
I want to compare file1 and file2 by 'id' and 'chain' columns, then extract exact matching rows'... (5 Replies)
Hi,
I have a file of csv data, which looks like this:
file1:
1AA,LGV_PONCEY_LES_ATHEE,1,\N,1,00020460E1,0,\N,\N,\N,\N,2,00.22335321,0.00466628
2BB,LES_POUGES_ASF,\N,200,200,00006298G1,0,\N,\N,\N,\N,1,00.30887539,0.00050312... (10 Replies)
Hi,
I have 2 csv files with 15 000 lines, which looks like this:
Daily.csv
"CODE","BRAND","DESIGNER","SIZE","TYPE","GENDER","SET","DESCRIPTION","IMAGE","COST","WEIGHT","MSRP","UPC"
"M-1001","212","Caroline Her","1.7 oz","EDT... (4 Replies)
Discussion started by: olivieraz
4 Replies
LEARN ABOUT DEBIAN
dbm::deep::iterator::file::index
DBM::Deep::Iterator::File::Index(3pm) User Contributed Perl Documentation DBM::Deep::Iterator::File::Index(3pm)NAME
DBM::Deep::Iterator::Index - mediate between DBM::Deep::Iterator and DBM::Deep::Engine::Sector::Index
PURPOSE
This is an internal-use-only object for DBM::Deep. It acts as the mediator between the DBM::Deep::Iterator object and a
DBM::Deep::Engine::Sector::Index sector.
OVERVIEW
This object, despite the implied class hiearchy, does NOT inherit from DBM::Deep::Iterator. Instead, it delegates to it, essentially acting
as a facade over it. "get_next_key" in DBM::Deep::Iterator will instantiate one of these objects as needed to handle an Index sector.
METHODS
new(\%params)
The constructor takes a hashref of params and blesses it into the invoking class. The hashref is assumed to have the following elements:
o iterator (of type DBM::Deep::Iterator
o sector (of type DBM::Deep::Engine::Sector::Index
at_end()
This takes no arguments.
This returns true/false indicating whether this sector has any more elements that can be iterated over.
get_next_iterator()
This takes no arguments.
This returns an iterator (built by "get_sector_iterator" in DBM::Deep::Iterator) based on the sector pointed to by the next occupied
location in this index.
If the sector is exhausted, it returns nothing.
perl v5.14.2 2012-06-24 DBM::Deep::Iterator::File::Index(3pm)
03-15-2012
