Created
April 1, 2021 14:12
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Shell script for adding swap to Linux
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| #!/bin/sh | |
| # size of swapfile in megabytes | |
| swapsize=1024 | |
| # does the swap file already exist? | |
| grep -q "swapfile" /etc/fstab | |
| # if not then create it | |
| if [ $? -ne 0 ]; then | |
| echo 'swapfile not found. Adding swapfile.' | |
| fallocate -l ${swapsize}M /swapfile | |
| chmod 600 /swapfile | |
| mkswap /swapfile | |
| swapon /swapfile | |
| echo '/swapfile none swap defaults 0 0' >> /etc/fstab | |
| else | |
| echo 'swapfile found. No changes made.' | |
| fi | |
| # output results to terminal | |
| df -h | |
| cat /proc/swaps | |
| cat /proc/meminfo | grep Swap |
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