Pour nettoyer la sortir :

cat $1 | grep -v memory | grep -v buff | perl -p -e "s|  | |g" -| perl -p -e "s|  | |g" - | perl -p -e "s|  | |g" - | awk 'BEGIN {x=1}; {print x++ " " $1 " " $2 " " $3 " " $4 " " $5 " " $6 " " $7 " " $8 " " $9 " " $10 " " $11 " " $12 " " $13 " " $14 " " $15 " " $16;}'