Memory Swaps:

[See swap info in system]

swapon -s

or

cat /proc/swaps

——

[To see all partitions (including swap memory partition)]

lsblk -o TYPE,NAME,KNAME,UUID,MOUNTPOINT,SIZE 

——

[To see used and free swap memory]

free -h 

——

[To free swap memory]

swapoff -a && swapon -a