#!/bin/awk -f BEGIN { FS="," } /^T_/ { s2=$2; for(i = 3; i <= NF; i++) s2 = s2","$i; aa[$1] = s2; } END { while (getline < "english.lng") { if (aa[$1] != "") printf("%s,%s\n", $1, aa[$1]); else printf("%s, NULL,\n", $1); } }