Deleting all the fields(columns) from a .csv file if all rows in that columns are blanks
Hi Friends,
I have come across some files where some of the columns don not have data.
If we see the above data on Data5 column do not have any row got filled. So remove only that column(Here Data5) and leave all the other column data as it is even tough there some cells with empty values.
In actual I have 100's of columns in my data with its own column filled in as per column1(Key).
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)
Hi,
I want to delete rows that dont have a certain # of columns. In my case, rows that are less than 8 should be removed (those greater than 8 are ok).
For instance:
1 2 3 4 5 6 7 8
2 3 2 4 3 2 1 5
1 2 3 4 5 6 8
2 2 4 3 1
1 1 1 1 1 1 1 1
after:
1... (8 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)
I have a text file that looks like this:
1 rs523634 8.22486
1
1 rs585160 8.22488
1 rs497228 8.2249
1
1 rs600933 8.225
1 rs480106 8.22531
1 rs600199 8.22533
1 rs529015 8.22534
1 rs598894 8.22534
I want to delete the rows with empty... (2 Replies)
Hi All,
i have a .Csv file in the below format
startTime, endTime, delta, gName, rName, rNumber, m2239max, m2239min, m2239avg, m100016509avg, m100019240max, metric3min, m100019240avg, propValues
11-Mar-2012 00:00:00, 11-Mar-2012 00:05:00, 300.0, vma3550a, a-1_CPU Index<1>, 200237463, 0.0,... (9 Replies)
Hi,
I have a requirement to convert rows into columns. data looks like:
c1,c2,c3,..
r1,r2,r3,..
p1,p2,p3,..
and so on..
output shud be like this:
c1,r1,p1,..
c2,r2,p2,..
c3,r3,p3,..
Thanks in advance, (12 Replies)
Hi all, I know this sounds suspiciously like a homework course; but, it is not.
My goal is to take a file, and match my "ID" column to the "Date" column, if those conditions are true, add the total number of minutes worked and place it in this file, while not printing the original rows that I... (6 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)
I have a series of csv files in the following format
eg file1
Experiment Name,XYZ_07/28/15,
Specimen Name,Specimen_001,
Tube Name, Control,
Record Date,7/28/2015 14:50,
$OP,XYZYZ,
GUID,abc,
Population,#Events,%Parent
All Events,10500,
P1,10071,95.9
Early Apoptosis,1113,11.1
Late... (6 Replies)
Discussion started by: pawannoel
6 Replies
LEARN ABOUT LINUX
colrm
COLRM(1) BSD General Commands Manual COLRM(1)NAME
colrm -- remove columns from a file
SYNOPSIS
colrm [start [stop]]
DESCRIPTION
The colrm utility removes selected columns from the lines of a file. A column is defined as a single character in a line. Input is read
from the standard input. Output is written to the standard output.
If only the start column is specified, columns numbered less than the start column will be written. If both start and stop columns are spec-
ified, columns numbered less than the start column or greater than the stop column will be written. Column numbering starts with one, not
zero.
Tab characters increment the column count to the next multiple of eight. Backspace characters decrement the column count by one.
ENVIRONMENT
The LANG, LC_ALL and LC_CTYPE environment variables affect the execution of colrm as described in environ(7).
EXIT STATUS
The colrm utility exits 0 on success, and >0 if an error occurs.
SEE ALSO awk(1), column(1), cut(1), paste(1)HISTORY
The colrm command appeared in 3.0BSD.
BSD August 4, 2004 BSD