kafka终端管理工具，该工具使用linux文件系统命令，实现kafka节点简单查找和修改等操作。当前支持命令以及对应的功能如下：

"ls       --List information about the Nodes (the current directory by default)"
"cd       --Switch to the specified directory"
"pwd      --Print current directory"
"mkdir    --Create a new node\n"
"rm       --Delete the specified directory"
"vim      --Edit node data"
".        --The current directory"
"..       --The upper directory"
"exit     --Exit the program"
"source   --Import nodedatas from File"
"help     --Print information";