今天安装kafka时，因为使用了echo命令配置环境变量
错误命令：echo export KAFKA_HOME=/opt/soft/kafka/kafka-1.1.1 > /etc/profile
正确命令：echo ‘export KAFKA_HOME=/opt/soft/kafka/kafka-1.1.1’ >> /etc/profile
然后整体的/etc/profile就成了这样[root@bruce03 etc]# vim profile
export PATH=.:/opt/hbase/hbase-1.3.1/bin:.:/opt/zookeeper/zookeeper-3.4.10/bin:.:/opt/sqoop/sqhutdown -r nowop-1.4.6/bin:.:/usr/local/mysql/bin:.:/opt/hive/hive-1.2.2/bin:/opt/hadoop/hadoop-2.7.7/bin:/opt/hadoop/hadoop-2.7.7/sbin:.:/opt/java/jdk1.8.0/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin:/bin
并且命令全部可用，找了好久不知道怎么解决，特此记录一下
准备全部删除，然后再把之前的都加进去
