awk: duplicate a column into a new one

view full story

http://www.unix.com – Hi ! I have a "|" delimited file: Code: field 1|field2|field3|field4 AAA|BBB|CCC|DDD EEE|FFF|GGG|HHH Using awk, I need to duplicate the 2nd column and print it into a 5th new column, like that: output: Code: field 1|field2|field3|field4|field 2 AAA|BBB|CCC|DDD|BBB EEE|FFF|GGG|HHH|FFF Thanks for your help ! (HowTos)