New logic and use

wpe

@@ -1,11 +1,65 @@
 #!/usr/bin/env bash
+set -euo pipefail
+
+# Display information about the required options
+usage() {
+  cat <<'EOF'
+Usage: $(basename "$0") -i <interface>
+
+Options:
+  -i, --iface  Network interface name (e.g., wlan0, eth0). Required.
+  -h, --help   Show this help and exit.
+
+Example:
+  $(basename "$0") -i wlan0
+EOF
+}
+
+iface="wlan0"
 
 # Check if script is run as root
 if [[ $EUID -ne 0 ]]; then
-    echo "[!] This script must be run as root!" >&2
+    echo "[!] This script requires root permissions." >&2
     exit 1
 fi
 
+# Translate long options to short for getopts
+# Keeping the script POSIX-friendly without relying on GNU getopt
+if [[ $# -gt 0 ]]; then
+  args=()
+  while [[ $# -gt 0 ]]; do
+    case "$1" in
+      --iface) args+=("-i"); shift ;;
+      --help)  args+=("-h"); shift ;;
+      *)       args+=("$1"); shift ;;
+    esac
+  done
+  set -- "${args[@]}"
+fi
+
+# Parse short options
+while getopts ":i:h" opt; do
+  case "$opt" in
+    i) iface="$OPTARG" ;;
+    h) usage; exit 0 ;;
+    \?) echo "Error: Invalid option -$OPTARG" >&2; usage; exit 1 ;;
+    :)  echo "Error: Option -$OPTARG requires an argument." >&2; usage; exit 1 ;;
+  end
+done
+
+# Require -i/--iface
+if [[ -z "${iface}" ]]; then
+  echo "Error: A network interface must be pecified with -i/--iface." >&2
+  echo "Example: $(basename "$0") -i wlan0" >&2
+  exit 1
+fi
+
+# Validate the interface exists on the system
+if ! ip link show "$iface" &>/dev/null; then
+  echo "Error: Interface '$iface' does not exist on this system." >&2
+  exit 1
+fi
+
 # Check if hostapd-wpe is installed
 if ! command -v hostapd-wpe &>/dev/null; then
     read -r -p "[!] hostapd-wpe is not installed. Install it now? (Y/n): " choice
@@ -21,24 +75,6 @@ fi
     fi
 fi
 
-# List network interfaces and their capabilities
-echo "[+] Available network interfaces:"
-iw dev | awk '/Interface/ {iface=$2; print "- Interface: " iface} /type/ {print "  Current Mode: "$2}';
-# echo "[+] Supported modes for each interface:";
-# iw list | awk '/Wiphy/ {wiphy=$2} /Supported interface modes:/ {getline; while ($1 ~ /^[ 	]/) {print "  " wiphy " supports: " $1; getline}}';
-
-# Prompt user for the network card
-while true; do
-    read -r -p "[?] Enter the interface to use for hostapd-wpe (default: wlan0): " iface
-    iface=${iface:-wlan0}
-    
-    if ip link show "$iface" &>/dev/null; then
-        break
-    else
-        echo "[!] Interface $iface does not exist. Please enter a valid interface."
-    fi
-done
-
 echo "[+] Preparing $iface for hostapd-wpe..."
 nmcli device set "$iface" managed no
 ip link set "$iface" down