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Top Forums Shell Programming and Scripting Compare value of a column in a file Post 302851419 by Vivekit82 on Sunday 8th of September 2013 11:43:05 PM
Old 09-09-2013
Compare value of a column in a file

i have a file which has few columns.From those columns i need to check the value of column 9 if it is 1 or not.If it is 1 then only i need to print column 4,5,7,9.

Code:
 
Sample input.
 
Column 1,Column 2,Column 3,Column 4,Column 5,Column 5,Column 6,Column 7,column 8,Column 9,Column 10.
 
Heading 1
value 1h,Value 2h,,value 4h,value 5h,Value 6h,Value 7h,Value 8h,1,value 10h
 
Heading 2
value 1b,Value 2b,,value 4b,value 5b,Value 6b,Value 7b,Value 8b,0,value 10b
 
Heading 3
value 1c,Value 2c,,value 4c,value 5c,Value 6c,Value 7c,Value 8c,1,value 10c
 
Output
 
Column 4,Column 5,Column 7,Column 9
value 4h,value 5h,Value 7h,1
value 4c,value 5c,Value 7c,1

In the above input heading 1,heading 2 and heading 3 are various headings in the file.

Also first column header start from line 3 in the file.
 

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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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