mc

#!/bin/bash

if [ ! -f ~/minecraft.jar ] ; then
    wget https://s3.amazonaws.com/MinecraftDownload/launcher/minecraft.jar -O ~/minecraft.jar
fi

BASE="$HOME/mc-installs"

mkdir -p "$BASE"

declare -a dirs

while true ; do
    if [ "$(ls -1 "$BASE" | wc -l)" -lt 1 ] ; then
        dirs=()
    else
        dirs=($BASE/*)
    fi
    select DIR in ${dirs[@]#$BASE/} new quit ; do
        case "$DIR" in 
            new)
                read -p 'name: ' NAME
                mkdir -p "$BASE/$NAME"
                break
                ;;
            quit)
                exit
                ;;
            '')
                echo 'Choose a number'
                ;;
            *)
                unshare -m ~/bin/mc-run "$BASE/$DIR"
        esac
    done
done

mc-run

#!/bin/bash
bindfs -n "$1" ~/.minecraft
/usr/java/jre1.7.0_02/bin/java -Xmx1024M -Xms512M -jar ~/minecraft.jar
fusermount -u ~/.minecraft