test.sh

test.sh

#!/bin/bash
# Name: test.sh
# Purpose: Demos compgen and complete
# Author: Vivek Gite, under GPL v2.x+
# ------------------------------------------

# My default interface
if_default="br0"

# Help
USAGE="usage: $0 -d -h -i -r -H"

# CLI args
# -d for date
# -h for hostname
# -i for IP address
# -r for routing
# -H get help
# -----------------------------
while getopts :dhirH opt_char
do
case $opt_char in
	d)
		echo "Date: $(date)"
		exit;;
	h)
		echo "Hostname: $HOSTNAME"
		exit;;
	i)
		echo -e "IP for $if_default interface\n $(ip addr show $if_default)\n"
		exit;;
	r)
		echo -e "Default routing for $HOSTNAME:\n $(ip route show)\n"
		exit;;
	H)
		echo "$USAGE"
		exit;;
	\?)
	echo "$OPTARG is not a valid option."
	echo "$USAGE"
	exit;;
esac
done

echo "$USAGE"
exit