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|
#!/bin/sh
set -eu
usage() {
cat <<-'EOF'
Usage:
getip [-4|-6]
getip -h
EOF
}
help() {
cat <<-'EOF'
Options:
-4 get IPv4
-6 get IPv6 (default)
-h, --help show this message
The the internet facing IP address of the current machine.
Examples:
Expose IPv6::
$ echo "http://$(getip -6)/sub/" >> index.html
EOF
}
for flag in "$@"; do
case "$flag" in
--)
break
;;
--help)
usage
help
exit
;;
*)
;;
esac
done
V=6
while getopts '46h' flag; do
case "$flag" in
4)
V=4
;;
6)
V=6
;;
h)
usage
help
exit
;;
*)
usage >&2
exit 2
;;
esac
done
shift $((OPTIND - 1))
curl -s https://euandre.org/b/ipv"$V"
|
