getipaddr

#!/bin/sh

CMDNAME=`basename $0`

while getopts glt OPT
do
    case $OPT in
        "g" ) FLG_G="TRUE" ;;
        "l" ) FLG_L="TRUE" ;;
        "t" ) FLG_T="TRUE" ;;
          * ) echo "Usage: $CMDNAME [-g] [-l] [-t]" 1>&2 
              exit 1 ;;
    esac
done

getlocalipaddr(){
    local=`ifconfig | grep 'inet ' | grep -v 127.0.0.1 | awk '{print $2;}' | cut -d: -f2`
    if [ "$local" = "" ]; then
        exit 1
    else
        echo "$1$local"
    fi
}

getglobalipaddr(){
    global=`curl -s http://ifconfig.me/ip`
    if [ "$global" = "" ]; then
        exit 1
    else
        echo "$1$global"
    fi
}

if [ "$FLG_T" = "TRUE" ]; then
    sec=`date +"%S"`
    if [ $sec -ge 30 ]; then
        getglobalipaddr ' | g:'
    else
        getlocalipaddr ' | l:'
    fi
elif [ "$FLG_L" = "TRUE" ]; then
    getlocalipaddr
elif [ "$FLG_G" = "TRUE" ]; then
    getglobalipaddr
else
    getlocalipaddr 'local: '
    getglobalipaddr 'global: '
fi