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Forum: UNIX for Dummies Questions & Answers 01-10-2013

Pick out columns according to list of column names

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try: awk ' NR==FNR {col[$1]=$1; next} ...

try:
awk '
NR==FNR {col[$1]=$1; next} # fill column array with values from File_A
FNR==1 {for (i=1; i<=NF; i++) { # for record 1 of File_B search columns for
if...

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