Replace every comma not enclosed in a pair of double quotes with '|' [closed]

Answer 1

Here's one way using GNU awk and the FPAT variable:

awk 'BEGIN { FPAT="([^,]+)|(\"[^\"]+\")"; OFS="|" } $1=$1' file

Results:

A|B|"C,D"|E|"F,G"|H|"I,J,K"
"Chang, Yao-Jen"|33|MIS|"Taiwan, Taipei"|M