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From my blog post, Scripting Linux Swap Space: Scripting Linux Swap Space
#!/bin/sh
# does the swap file exist?
grep -q "swapfile" /etc/fstab
# if it does then remove it
if [ $? -eq 0 ]; then
echo 'swapfile found. Removing swapfile.'
sed -i '/swapfile/d' /etc/fstab
echo "3" > /proc/sys/vm/drop_caches
swapoff -a
rm -f /swapfile
else
echo 'No swapfile found. No changes made.'
fi
# output results to terminal
cat /proc/swaps
cat /proc/meminfo | grep Swap
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