2009/9/17 matt <maht-9f...@maht0x0r.net>: > sed 's/^([^ ]+ +)([^ ]+)/\1HELL/'
Well, actually, my problem is a part of a more complicated script; I don't know in advance neither the column nor what to put there. I currently have this awk ' /TH/ {$'$pos'='$new'} {print} ' inpch where 'TH' plays a role of a guard, and $pos and $new are the field to be changed and with what, respectively. I am afraid this rules out sed. Thanks Ruda