+#! /usr/bin/awk -f
+#
+# Example iwconfig output:
+# -----------------------
+# $ iwconfig wlp3s0
+# wlp3s0 IEEE 802.11 ESSID:"BPLUNWIRED"
+# Mode:Managed Frequency:5.785 GHz Access Point: E2:55:2D:C0:64:B8
+# Bit Rate=135 Mb/s Tx-Power=15 dBm
+# Retry short limit:7 RTS thr:off Fragment thr:off
+# Power Management:on
+# Link Quality=59/70 Signal level=-51 dBm
+# Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
+# Tx excessive retries:0 Invalid misc:0 Missed beacon:0
+#
+#
+# USAGE: khatus_parse_iwconfig -v requested_interface="$wifi_interface"
+
+/^[a-z0-9]+ +IEEE 802\.11 +ESSID:/ {
+ interface = $1
+ split($4, essid_parts, ":")
+ essid[interface] = essid_parts[2]
+ gsub("\"", "", essid[interface])
+}
+
+/^ +Link Quality=[0-9]+\/[0-9]+ +Signal level=/ {
+ split($2, lq_parts_eq, "=")
+ split(lq_parts_eq[2], lq_parts_slash, "/")
+ cur = lq_parts_slash[1]
+ max = lq_parts_slash[2]
+ link[interface] = cur / max * 100
+}
+
+END {
+ i = requested_interface
+ status = link[i] ? sprintf("%s %s:%d%%", i, essid[i], link[i]) : "--"
+ print(status)
+}