#!/bin/bash
# Generate a numbered tap device name

TAP="tap0"
COUNT=0

while [[ true ]]; do
    FOUND=false

    for INT in $(ls /sys/class/net); do
        if [[ $INT == $TAP ]]; then
            ((COUNT++))

            TAP="tap$COUNT"
            FOUND=true
            continue
        fi
    done

    if [[ !$FOUND ]]; then
        break
    fi
done