ECS 安装FTP问题

wget -c http: // lamp.phpstudy.net/phpstudy-ftpd.sh

FTP 安装了三遍不知有影响吗，如何删除啊




# Generated by iptables-save v1.4.21 on Sat Jun 17 18:17:05 2017
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
-A INPUT -p tcp -m tcp --dport 20 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 21 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 20 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 21 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 20 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 21 -j ACCEPT
COMMIT
# Completed on Sat Jun 17 18:17:05 2017


还有安装好后

[root@iZuf64awiw9dvoofcnk0vkZ ~]# phpstudy ftp add
-bash: phpstudy: command not found
  提示这个无法创建用户，密码


          请问这要怎么处理，请大神赐教~~~