意外令牌附近的语法错误＆＃39; elif＆＃39; - cygwin

Question

我是shell脚本的新手，以下是我目前的脚本。

os=$(uname -a)
if [[ $os == *"Linux"* ]];
then
    val=$(~/local/bin/python2.7 Main.py)
elif [[ $os = *"CYGWIN_NT"* ]]
then
    val=$(python Main.py)
fi

我收到错误

-bash: ./run.sh: line 8: syntax error near unexpected token `elif'
'bash: ./run.sh: line 8: `elif [[ $os = *"CYGWIN_NT"* ]]

尝试从Cygwin bash shell运行它。