bash支持elif吗？为什么错误阿？

#!/bin/bash
  2
  3 echo "Guess the secret color"
  4
  5 read COLOR
  6
  7 if [ $COLOR="purple" ] then
  8         echo "You are right"
  9 elif [ $COLOR="blue" ] then   #这行为什么出错
10         echo "You are close"
11 else
12         echo "Your guess was incorrect"
13 fi
14

if [ $COLOR="purple" ] then
=>
if [ $COLOR="purple" ];then
elif同理，否则then会被当命令参数

if [ $COLOR="purple" ] then
加个;号，改为：
if [ $COLOR="purple" ]; then
或者分两行
if [ $COLOR="purple" ]
then