Servers Controller CLI

servers_controller_cli.sh

#!/bin/sh

# Configurations.

serviceDirectory="/usr/lib/systemd/system"

# Constants (do not touch).

menuServiceOptions="return status start stop restart enable disable exit"
menuGlobalOptions=$(ls $serviceDirectory)

# Functions.

# Main menu.
# Contains all services in folder to choose.
menuGlobal()
{
	echo -e "\nServer controller CLI\n"
	
	i=0
	for file in $menuGlobalOptions
	do
		i=$((i + 1))
		name=$(basename $file)
		echo -e " $i\t$name"
	done
	echo

	read -p "Choose server: " answer
	
	if ! validateInput $answer $i
	then
		echo "Not a option."
		exit 1
	fi

	clear

	menuService $(echo $menuGlobalOptions | cut -d ' ' -f $answer)
}

# Service menu.
# Contains service control.
menuService()
{
	while true
	do
		echo -e "\n$1\n"

		i=0
		for option in $menuServiceOptions
		do
			i=$((i + 1))
			echo -e " $i\t$option"
		done
	
		echo

		read -p "Choose option: " answer

		optionChoosen=$(echo $menuServiceOptions | cut -d ' ' -f $answer)

		if ! validateInput $answer $i
		then
			echo "Not a option."
			exit 1
		fi

		clear

		case $answer in
			1)
				menuGlobal
				;;
			2)
				getServiceStatus $1
				;;
			8)
				exit 0
				;;
			*)
				eval "systemctl $optionChoosen $1"
				;;
		esac
	done
}

#
# Prints service status.
# 
# Parameters:
# 1 - input service
#
getServiceStatus()
{
	#status=$(systemctl status $1)

	echo
	systemctl status $1
	#echo Active: $(echo $status | grep "Active" | cut -d ' ' -f 7)
	#echo
}

validateInput()
{
	if [ "$1" -ne "$1" -o "$1" -le "0" -o "$1" -gt "$2" ]
	then
		return 1
	fi

	return 0
}

clear
menuGlobal