added optional extenral IP timeout

nicparseMacos.bash

@@ -1,47 +1,61 @@
 #!/bin/bash
 # Macos all addresses parser
+# run with ./nicparser.bash, for example in your .bash_profile
+#
 # Copyright 2023 by Moshix - All right reserved
 # You may only execute this script but not redistribute or enhance without first including the full 
 #  script in its entirety as comment in your own changes or enhancements
 # v 0.1 Humble beginnings
 # v 0.2 Exclude non IP4 interfaces
+# v 0.3 Color!
+# v 0.4 Generalized version for MacOs and Linux
+# v 0.5 Nicer output
+# v 0.6 Gets your external IP or times out telling you no external IP
+# v 0.7 Get extenral IP optional with -e switch 
+# v 0.8 Set time out in second argument to n.n seconds (e.g. 2.1) with 2.2, only if -e is present, (e.g. -e 1.2)
 
-for counter in 0 1 2 3 4 5 6 ;
-do
-   result=`ifconfig vmenet"$counter" 2>/dev/null`
-   if grep -q "inet " <<< "$result"; then
-      echo -n -e "NIC vmenet$counter:\t"
-      ifconfig vmenet"$counter" |  grep "inet " | awk '{print $2}'
-   fi
+set_color() {
+# terminal handling globals
+red=`tput setaf 1`
+green=`tput setaf 2`
+yellow=`tput setaf 3`
+blue=`tput setaf 4`
+magenta=`tput setaf 5`
+cyan=`tput setaf 6`
+white=`tput setaf 7`
+blink=`tput blink`
+rev=`tput rev`
+reset=`tput sgr0`
+# echo "${red}red text ${green}green text${reset}"
+}
+
+get_external() {
+# now lets get external IP or timeout
+echo -e "${blue}External IP: \t${white}"`timeout $delay curl ifconfig.me 2>/dev/null || echo "${red}no external IP${reset}"`
+}
+
+# main loop here
+set_color
+
+for nictype in lo en utun bridge docker tap tun ens eth
+do 
+  for counter in 0 1 2 3 4 5 6 100 101 102 103 104 160 161 162
+     do
+        result=`ifconfig $nictype$counter 2>/dev/null`
+        if grep -q "inet " <<< "$result"; then #NIC exists...
+           echo -n -e "${blue}$nictype$counter:     \t${reset}"
+           ifconfig "$nictype$counter" |  grep "inet " | awk 'BEGIN{ORS=""}{print $2}' # ORS controls new line
+           echo  -e "${reset}"
+        fi
+     done
 done
 
-
-for counter in 0 1 2 3 4 5 6;
-do
-   result=`ifconfig en"$counter" 2>/dev/null`
-   if grep -q "inet " <<< "$result"; then
-      echo -n -e "NIC en$counter:\t"
-      ifconfig en"$counter" |  grep "inet " | awk '{print $2}'
+if [[ "$1" == "-e" ]]; then
+   if [[ -z "$2" ]]; then 
+      delay=1.8
+      get_external # call external IP routine
+   else
+      delay=$2
+      get_external
    fi
-done
-
-
-
-for counter in 0 1 2 3 4 5 6;
-do
-   result=`ifconfig utun"$counter" 2>/dev/null`
-   if grep -q "inet " <<< "$result"; then
-      echo -n -e "NIC utun$counter:\t"
-      ifconfig utun"$counter" |  grep "inet " | awk '{print $2}' 
-   fi
-done
-
-
-for counter in 100 101 102 103 104;
-do
-   result=`ifconfig bridge"$counter" 2>/dev/null`
-   if grep -q "inet " <<< "$result"; then
-      echo -n -e "NIC bridge$counter:\t"
-      ifconfig bridge"$counter" |  grep "inet " | awk '{print $2}'
-   fi
-done
+fi