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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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NSAPI_REQUEST_HEADERS(3)						 1						  NSAPI_REQUEST_HEADERS(3)

nsapi_request_headers - Fetch all HTTP request headers

SYNOPSIS
array nsapi_request_headers (void ) DESCRIPTION
nsapi_request_headers(3) gets all the HTTP headers in the current request. This is only supported when PHP runs as a NSAPI module. Note Prior to PHP 4.3.3, getallheaders(3) was only available for the Apache servers. After PHP 4.3.3, getallheaders(3) is an alias for nsapi_request_headers(3) if you use the NSAPI module. Note You can also get at the value of the common CGI variables by reading them from the $_SERVER superglobal, which works whether or not you are using PHP as a NSAPI module. RETURN VALUES
Returns an associative array with all the HTTP headers. EXAMPLES
Example #1 nsapi_request_headers(3) example <?php $headers = nsapi_request_headers(); foreach ($headers as $header => $value) { echo "$header: $value <br /> "; } ?> PHP Documentation Group NSAPI_REQUEST_HEADERS(3)
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