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arpat/mk1Gswapfile.sh

Created November 17, 2016 14:32
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Make a swapfile on Linux of 1GB
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mk1Gswapfile.sh
#!/bin/bash
## blame: arunsmtp@gmail.com
## Make a 1G swapfile in CWD
SwapFile="~~SWAPFILE.$(date +%H%m%s%N | sha1sum | cut -c1-12)"
# fallocate -l 1G $SwapFile \ ## caused issue for f2fs
dd if=/dev/zero of="$SwapFile" bs=1024 count=1048576 \
&& chmod 600 $SwapFile \
&& mkswap $SwapFile \
&& swapon $SwapFile
echo "MAKE SURE to switch swap off before making $SwapFile inaccessible with"
echo " swapoff $PWD/$SwapFile"
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