added wifi-list.sh

Author: freddii

wifi-list.sh

@@ -0,0 +1,50 @@
+#!/bin/sh
+
+if [ $# -lt 1 ]; then
+	echo "usage: $(basename $0) INTERFACE" >&2
+	exit 1
+fi
+
+iwlist "$1" scan | awk '
+	BEGIN {
+		c[0]  = "C";   a[0] = "Address";
+		q[0]  = "Q";   s[0] = "ESSID";
+		l[0]  = "L";   e[0] = -1;
+		k[-1] = "Enc"; k[0] = "None"; k[1] = "WEP";
+		k[3]  = "WPA"; k[5] = "WPA2"; k[7] = "WPA+WPA2";
+	}
+	$1 == "Cell" {
+		a[++n] = $5;
+	}
+	$1 ~ "^Channel:" {
+		split($1, t, ":");
+		c[n] = t[2];
+	}
+	$1 ~ "^Quality=" {
+		split($1, t, "=");
+		q[n] = t[2];
+		split($3, t, "=");
+		l[n] = t[2];
+	}
+	$1 ~ "^ESSID:" {
+		split($0, t, "\"");
+		s[n] = t[2]
+	}
+	$0 ~ "Encryption key:on" {
+		e[n] = 1;
+	}
+	$0 ~ "IE: WPA" {
+		e[n] += 2;
+	}
+	$0 ~ "IEEE 802.11i/WPA2" {
+		e[n] += 4;
+	}
+	END {
+		if (n > 0) {
+			for (i = 0; i <= n; i++) {
+				printf("%-17s  %2s  %5s  %3s  %-8s  %s\n",
+				       a[i], c[i], q[i], l[i], k[int(e[i])], s[i]);
+			}
+		}
+	}'
+