On Slackware, the swapon command uses the -s option:
Code:
$ /sbin/swapon -s
Filename Type Size Used Priority
/dev/hda10 partition 987956 194220 -1
Or, you can just check the /proc info:
Code:
$ cat /proc/swaps
Filename Type Size Used Priority
/dev/hda10 partition 987956 194220 -1