报错日志：
-e /tmp/zookeeper echo /tmp/zookeeper
mkdir: illegal option – e
usage: mkdir [-pv] [-m mode] directory …
-e /tmp/zookeeper echo /tmp/zookeeper/zookeeper_server.pid
-n Starting zookeeper …
zkServer.sh: line 176: -e /tmp/zookeeper
echo /tmp/zookeeper/zookeeper_server.pid: No such file or directory
FAILED TO WRITE PID

原因：获取变量多字符-- e
解决方法：
修改conf配置zoo.cfg添加配置目录dataLogDir
dataLogDir=/tmp/zookeeper/log

并且注释掉多余的ZOO_DATADIR