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Full Discussion: awk based script to ignore all columns from a file which contains character strings
Top Forums Shell Programming and Scripting awk based script to ignore all columns from a file which contains character strings Post 302716217 by ks_reddy on Tuesday 16th of October 2012 05:11:59 AM
Old 10-16-2012
Thanks
Hi Pamu/All,
Your code works perfectly.
I am sorry for little confusion here.
My actual input data looks like this
Code:
Type,Data1,Data2,Data3 
A,2,3,4 
B,3,4,SOME STRING 
C,4,Inf,5 
D,5,4,4

Where column header Type is a string which says case of each row. Some times there will be many like Type1,Type2 etc columns and I want to preserve them
and make your code work on the rest of the columns like 4 to last column.
Basically I want to offset column number from where I need to remove columns that have strings.

If possible modify your code to account for my request.

Thanks
Sidda
Last edited by ks_reddy; 10-16-2012 at 06:23 AM.. Reason: Small correction in input.
 

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LEARN ABOUT OSX

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
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