75 lines
1.4 KiB
Bash
Executable File
75 lines
1.4 KiB
Bash
Executable File
#!/bin/bash
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function helpexit() {
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echo "Print your public internet IP address."
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echo "-n return as host name."
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echo "-l display only local addresses."
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echo "-j JSON output from ifconfig.co"
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exit
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}
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function locals_only() {
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ip -4 -o addr | awk '!/^[0-9]*: ?lo|link\/ether/ {printf "%18s %s\n", $4, $2}' | sort -k 2
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exit $?
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}
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function ifconfig_service() {
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which jq &>/dev/null && JQ="jq ." || JQ="cat -"
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$CURL ifconfig.co/json | $JQ
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exit $?
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}
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function setup_curl() {
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which curl &>/dev/null && {
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CURL="curl -s -4"
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return
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}
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which wget &>/dev/null && {
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CURL="wget -q -O - "
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return
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}
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echo "No curl or wget present" >2
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exit 1
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}
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for (( i=1; i<=$#; i++ )); do
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[[ "${!i}" = "--help" ]] && helpexit
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[[ "${!i}" = "-h" ]] && helpexit
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done
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for (( i=1; i<=1; i++ )); do
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[[ "${!i}" = "-n" ]] && { NAME=1; continue; }
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[[ "${!i}" = "-l" ]] && { LOCAL=1; continue; }
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[[ "${!i}" = "-j" ]] && { JSON=1; continue; }
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done
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setup_curl
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if [[ "$LOCAL" -eq 1 ]]; then
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locals_only
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fi
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if [[ "$JSON" -eq 1 ]]; then
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ifconfig_service
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fi
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IP=$( $CURL ifconfig.co/ip )
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if [[ -z "$IP" ]]; then
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which dig &> /dev/null || {
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echo Install apt dnsutils >&2
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exit 1
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}
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IP=$( dig +short myip.opendns.com @resolver1.opendns.com )
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fi
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if [[ "$NAME" -eq 1 ]]; then
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output=$( dig +short -x "$IP" )
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else
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output="$IP"
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fi
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if [[ -z "$output" ]]; then
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exit 1
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fi
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echo "$output"
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