使用 {} 執行多個指令時出現 bash 腳本錯誤

Question

我正在編寫一個 bash 腳本（如下）並使用

sudo bash ./script.bash 

結果錯誤：

line 22: syntax error near unexpected token `fi'

劇本：

getent passwd myuser > /dev/null
if [ $? -eq 0 ]; then
    echo "info: user myuser already exists"
else
    sudo useradd -M myuser > /dev/null || { echo "ERROR: could not create user myuser."; exit 1 }
    echo "info: user myuser created successfully"
fi

如果我刪除該行：

|| { echo "ERROR: could not create user fiminion"; exit 1 }

一切似乎都有效..我不明白我錯過了什麼..：/