awk ' { if(first == 0){ first = 1 lastline = $0 word = $1 next } if($1 == word && $2 !~ /[a-zA-Z]/&& length($2) > 1 && $0 ~ /^ /){ sub(/.* /,", ",$0) print lastline $0 first = 0 } else { print lastline lastline = $0 word = $1 } } END { print lastline } '