bash-3.2# swap -s
total: 263584k bytes allocated + 23992k reserved = 287576k used, 39459544k available
# swap -s | awk ‘{ print $9 $11 }’| awk -Fk ‘{print $1 * 100 / ( $1 + $2 ) }’
91.7329
#
bash-3.2# swap -s | awk ‘{ print $9 $11 }’| awk -Fk ‘{print $1 * 100 / ( $1 + $2 ) }’
0.725205