53 lines
986 B
Bash
53 lines
986 B
Bash
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#!/bin/bash
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function myip()
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{
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declare ipaddrs=(
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$(curl -s ifconfig.co) # query interwebs
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$(ifconfig | awk '/inet(6)? (addr:)?/ {print $2}') # machine interfaces
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)
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if (( ! ${#ipaddrs[*]} ))
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then
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echo "
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myip: error: I'm having trouble determining what our IP address is...
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Are we connected to a network?
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"
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return 1
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fi
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declare prompt="
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Please choose the IP address you want to advertise to the network:
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0) ${ipaddrs[0]} <====== this one was returned by the interwebs...
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"
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for ((i=1; i < ${#ipaddrs[*]}; i++))
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do
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prompt+=" $i) ${ipaddrs[i]}
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"
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done
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while read -p "${prompt}
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please enter a number [0 for default]: " which
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do
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[[ -z ${which} ]] && break;
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[[ ${which} =~ [0-9]+ ]] && (( which < ${#ipaddrs[*]} )) && break;
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echo "Ug. invalid entry \"${which}\"...
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"
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sleep 1
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done
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which=${which:-0}
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echo "${ipaddrs[which]}"
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}
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if [[ ${0} == ${BASH_SOURCE[0]} ]]
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then
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myip "$@"
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fi
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