vm-mgr

#!/bin/bash
PS3='Option: '
options=("Start a VM" "Create a VM" "Delete a VM" "Help" "Quit")
select opt in "${options[@]}"
do
    case $opt in
        "Start a VM")
            clear

	    echo "---CHOOSE A VM---"
	    prompt="VM:"
	    options=( $(ls -1 ~/.vm-mgr/* | sed s/^.*\\/\// | sed 's/.qcow2//g') )

	    PS3="$prompt "
	    select opt in "${options[@]}" "Quit" ; do 
    	    if (( REPLY == 1 + ${#options[@]} )) ; then
         	    exit

    	    elif (( REPLY > 0 && REPLY <= ${#options[@]} )) ; then
        #echo  "You picked $opt which is file $REPLY"
        	    break

    	    else
          	    echo "Invalid option. Try another one."
      	    fi
	    done    

	    clear

	    read -p "Threads: " core_0
	    read -p "Memory: " ram_0


	    qemu-system-x86_64 -enable-kvm -m $ram_0 -smp $core_0 -hda ~/.vm-mgr/$opt.qcow2 -boot d -netdev user,id=net0,net=192.168.0.0/24,dhcpstart=192.168.0.9 -device virtio-net-pci,netdev=net0 -vga qxl -device AC97 &

       	    exit 0
	    clear
	    break
            ;;
        "Create a VM")
            clear
            read -p "VM Name: " dis_0
            read -p "Threads: " core_0
            read -p "Memory: " ram_0
            read -p "Disk Size: " disk_0
            clear
            echo "---Choose An Image---"
            prompt="Image:"
            options=( $(find ~ -type f -name '*.iso'; find ~ -type f -name '*.img') )

            PS3="$prompt "
            select opt in "${options[@]}" "Quit" ; do 
                if (( REPLY == 1 + ${#options[@]} )) ; then
                    exit

                elif (( REPLY > 0 && REPLY <= ${#options[@]} )) ; then
                    break

                else
                    echo "Invalid option. Try another one."
                fi
            done    


            ls -ld "$opt"


            qemu-img create -f qcow2 ~/.vm-mgr/$dis_0.qcow2 $disk_0


            echo -e "\e[33mConfig Done!\e[0m"
            sleep 0.7
            clear
            echo "Staring $dis_0 in"
            echo "3"
            sleep 0.8
            echo "2"
            sleep 0.8
            echo "1"

            qemu-system-x86_64 -enable-kvm -m $ram_0 -smp $core_0 -hda ~/.vm-mgr/$dis_0.qcow2 -boot d -cdrom $opt -netdev user,id=net0,net=192.168.0.0/24,dhcpstart=192.168.0.9 -device virtio-net-pci,netdev=net0 -vga qxl -device AC97 &
            disown
            exit 0
            break
            ;;
        "Delete a VM")
            clear
            echo "---Choose a vm to delete---"
            prompt="VM:"
            options=( $(ls -1 ~/.vm-mgr/* | sed s/^.*\\/\// | sed 's/.qcow2//g') )


            PS3="$prompt "
            select opt in "${options[@]}" "Quit" ; do 
                if (( REPLY == 1 + ${#options[@]} )) ; then
                    exit

                elif (( REPLY > 0 && REPLY <= ${#options[@]} )) ; then
        #echo  "You picked $opt which is file $REPLY"
                    break

                else
                    echo "Invalid option. Try another one."
                fi
            done 

            rm -rf ~/.vm-mgr/$opt.qcow2

            echo -e "\e[31m$opt was deleted\e[0m"
            exit 0
            break
            ;;
	"Help")
	    clear
            echo -e "
            Type the number next to the option you want to execute, so to start a VM type "1"

            We recomend to do set threads to about half $(nproc)

            When setting memory or disk sizes please end the size with "M" (for megabyte) or "G" (gigabyte). 
            So when setting disk size do 4G or 4000M (same applies to ram!) 

            All Virtual Machine(VM) disks are stored in ~/.vm-mgr/

	    1) Start a VM - start an already created vm.
	    2) Create a VM - Make a VM install the OS from the img then start the vm from vm-manager and the "Start a VM" option.
	    3) Delete a VM - delete any VM.
	    "
	    break
	    ;;
        "Quit")
            break
            ;;
        *) echo "invalid option $REPLY";;
    esac
done

exit 0