more choices for whatis

This commit is contained in:
Q
2019-11-28 19:24:08 +02:00
parent 1b6248733a
commit e81fb4714f

View File

@@ -5,23 +5,40 @@ function helpexit() {
echo "Print your public internet IP address."
echo "-n return as host name."
echo "-l display only local addresses."
echo "-j JSON output from ifconfig.co"
exit
}
function locals_only() {
ip -4 -o addr | awk '!/^[0-9]*: ?lo|link\/ether/ {printf "%18s %s\n", $4, $2}' | sort -k 2
exit $?
}
function ifconfig_service() {
which curl &>/dev/null && {
curl ifconfig.co/json; exit $?
}
which wget &>/dev/null && {
wget -q -O - ifconfig.co/json; exit $?
}
}
for (( i=1; i<=$#; i++ )); do
[[ "${!i}" = "--help" ]] && helpexit
[[ "${!i}" = "-h" ]] && helpexit
done
for (( i=1; i<=1; i++ )); do
[[ "${!i}" = "-n" ]] && { NAME=1; continue; }
[[ "${!i}" = "-l" ]] && { LOCAL=1; continue; }
[[ "${!i}" = "-j" ]] && { JSON=1; continue; }
done
if [[ "$LOCAL" -eq 1 ]]; then
locals_only
fi
if [[ "$JSON" -eq 1 ]]; then
ifconfig_service
fi
which dig &> /dev/null || {
echo Install apt dnsutils >&2
exit 1