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wvdschel/mkswapimg.sh

Created June 4, 2012 07:45
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Swap image creator
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mkswapimg.sh
#!/bin/bash
SIZE=`expr $1 \* 1024`
if [[ x$SIZE == x ]]
then
MEM=`free | grep Mem | sed -e "s/[^0-9]*\([0-9]\+\).*/\1/"`
SIZE=`expr $MEM + $MEM / 4`
echo "No size provided, using 125% of memory size (${SIZE}KB)"
fi
COUNT=`expr $SIZE / 4`
dd if=/dev/zero of=swap.img bs=4096 count=$COUNT
mkswap swap.img
swapon swap.img
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