setup_hotspot.sh

#!/bin/bash

# Update and upgrade the system
sudo apt-get update && sudo apt-get upgrade -y

# Install required packages
sudo apt-get install -y hostapd dnsmasq

# Configure dhcpcd.conf
sudo bash -c 'cat << EOF >> /etc/dhcpcd.conf
interface wlan0
static ip_address=192.168.4.1/24
nohook wpa_supplicant
EOF'

# Configure hostapd
sudo bash -c 'cat << EOF > /etc/hostapd/hostapd.conf
interface=wlan0
driver=nl80211
ssid=LibraryHotspot
hw_mode=g
channel=7
wmm_enabled=0
macaddr_acl=0
auth_algs=1
ignore_broadcast_ssid=0
wpa=2
wpa_passphrase=YourPassword
wpa_key_mgmt=WPA-PSK
rsn_pairwise=CCMP
EOF'

sudo sed -i 's|#DAEMON_CONF="|DAEMON_CONF="/etc/hostapd/hostapd.conf"|g' /etc/default/hostapd

# Configure dnsmasq
sudo mv /etc/dnsmasq.conf /etc/dnsmasq.conf.orig
sudo bash -c 'cat << EOF > /etc/dnsmasq.conf
interface=wlan0
dhcp-range=192.168.4.2,192.168.4.20,255.255.255.0,24h
EOF'

# Enable and start services
sudo systemctl restart dhcpcd
sudo systemctl unmask hostapd
sudo systemctl enable hostapd
sudo systemctl start hostapd
sudo systemctl enable dnsmasq
sudo systemctl start dnsmasq

echo "Hotspot setup complete."