Script to help you to connect to the next level of the bandit game of overthewire.org

bandit.overthewire.sh

#!/bin/bash

# $1 = starting level, zero if unset
# $2 = end level, 34 if unset

NORMAL="\e[0m"
RED="\e[1;31m"

i=${1:-0}
end=${2:-34}

while [[ $i -le $end ]]; do
        # if there is a key file, try that first
        if [[ -f "level${i}.priv" ]]; then
                ssh "bandit${i}@bandit.labs.overthewire.org" -p 2220 -i "level${i}.priv"
        elif [[ $i -eq 18 ]]; then
                ssh "bandit${i}@bandit.labs.overthewire.org" -p 2220
                echo -e "${RED}\nDid work right?\n Now give me your custom ssh command:${NORMAL}"
                read ssh_cmd
                $ssh_cmd
        else
                ssh "bandit${i}@bandit.labs.overthewire.org" -p 2220
        fi
        # ssh endded gracefully
        if [[ $? -eq 0 ]]; then
                # in level 16 you get a ssh key
                if [[ $i -eq 16 ]]; then
                        echo -e "${RED}Write the ssh priv key (ctrl+d to finish)${NORMAL}\n"
                        cat > "level$((i+1)).priv"
                        chmod 400 "level$((i+1)).priv"
                fi
                i=$((i+1))
        # error on ssh command, probably wrong password
        else
                echo -ne "\n${RED}Wrong password! ${NORMAL}Try to find again? [Y/n] "
                read again;
                if [[ $again == "n" ]]; then
                        exit -1
                else
                        i=$((i-1))
                fi
        fi
done