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awk print header as text from separate file with getline

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# 1  
Old 12-14-2011
awk print header as text from separate file with getline
I would like to print the output beginning with a header from a seperate file like this:

Code:
awk 'BEGIN{FS="_";print ((getline < "header.txt")>0)} { if (! ($0 ~ /EL/ )  print }" input.txt

What am i doing wrong?
# 2  
Old 12-14-2011
Try:
Code:
awk 'NR==FNR{print;next}!/EL/' header.txt input.txt

This User Gave Thanks to bartus11 For This Post:
sdf
# 3  
Old 12-14-2011
Quote:
Originally Posted by bartus11
Try:
Code:
awk 'NR==FNR{print;next}!/EL/' header.txt input.txt

Thanks! Just curious, how would the code look like with text from a sperate second file at the end/bottom of the output-file?
# 4  
Old 12-14-2011
You appear to be trying to print the return value of getline, but it returns a status, not the record read.

getline sets $0 if you don't specify a variable, so you could have:
Code:
awk 'BEGIN{FS="_"; if ((getline < "header.txt") > 0) {print}} { if (! ($0 ~ /EL/ )  print }" input.txt

# 5  
Old 12-14-2011
Code:
awk 'NR==FNR && !/EL/;NR!=FNR' input.txt end.txt

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