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Top Forums Shell Programming and Scripting Find columns in a file based on header and print to new file Post 302986459 by RudiC on Friday 25th of November 2016 02:26:53 PM
Old 11-25-2016
This works if the name column is added to the headers file:
Code:
awk '
NR == FNR       {T[$1] = NR
                 next
                }
FNR == 1        {MX = NR - 1
                 for (i=1; i<=NF; i++) if ($i in T) C[T[$i]] = i
                }
                {for (j=1; j<=MX; j++) printf "%s%s", $C[j], (j == MX)?RS:"\t"
                }
' file2 file1
name	col_1	col_6	col_3	col_4	col_8	
name,1	2	0	1	0	9.6154	
name,2	7	0	0	0	8.6310	
name,3	4	0	1	0.6	4.6420	
name,4	6	0	1	0	7.7778	
name,5	2	0	3	0.833333	4.2924

This User Gave Thanks to RudiC For This Post:
 

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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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