Answers for "how to give reference of javascript file in html"

clear swap memory linux

sudo swapoff -a; sudo swapon -a

linux swap flush

#!/bin/bash

free_mem="$(free | grep 'Mem:' | awk '{print $7}')"
used_swap="$(free | grep 'Swap:' | awk '{print $3}')"

echo -e "Free memory:\t$free_mem kB ($((free_mem / 1024)) MiB)\nUsed swap:\t$used_swap kB ($((used_swap / 1024)) MiB)"
if [[ $used_swap -eq 0 ]]; then
    echo "No swap is in use."
elif [[ $used_swap -lt $free_mem ]]; then
    echo "Freeing swap..."
    sudo swapoff -a
    sudo swapon -a
else
    echo "Not enough free memory. Exiting."
    exit 1
fi

how to increase the swap space in linux 7

# lvextend -l +100%FREE /dev/vg_main/lv_swap

how to link javascript to html

<script src = "index.js"></script>