写一个在linux系统环境下的ble扫描连接测试脚本

以下是一个在Linux系统环境下使用BlueZ库进行BLE扫描和连接测试的脚本：

#!/bin/bash

# 设置要扫描的设备名称
DEVICE_NAME="MyDevice"

# 扫描超时时间（秒）
SCAN_TIMEOUT=10

# 连接超时时间（秒）
CONNECT_TIMEOUT=10

# 获取扫描结果
echo "Scanning for BLE devices with name ${DEVICE_NAME}..."
DEVICE_MAC=$(timeout ${SCAN_TIMEOUT} hcitool lescan --duplicates | grep ${DEVICE_NAME} | awk '{print $1}')

# 检查是否找到设备
if [ -z "${DEVICE_MAC}" ]; then
  echo "Device ${DEVICE_NAME} not found."
  exit 1
fi

# 连接设备
echo "Connecting to device ${DEVICE_NAME} (${DEVICE_MAC})..."
timeout ${CONNECT_TIMEOUT} gatttool -b ${DEVICE_MAC} --interactive < connect.txt

# 检查是否连接成功
if [ $? -eq 0 ]; then
  echo "Connected to device ${DEVICE_NAME} (${DEVICE_MAC})."
else
  echo "Failed to connect to device ${DEVICE_NAME} (${DEVICE_MAC})."
  exit 1
fi

# 断开连接
echo "Disconnecting from device ${DEVICE_NAME} (${DEVICE_MAC})..."
timeout ${CONNECT_TIMEOUT} gatttool -b ${DEVICE_MAC} --interactive < disconnect.txt

echo "Done."

其中，`connect.txt`文件包含以下内容：

connect

`disconnect.txt`文件包含以下内容：

disconnect

在运行脚本之前，需要先安装BlueZ库和相关依赖。在Debian/Ubuntu系统中，可以使用以下命令安装：

sudo apt-get install bluez libbluetooth-dev

然后，将上述脚本保存为`ble-test.sh`文件，赋予执行权限，并运行即可：

chmod +x ble-test.sh
./ble-test.sh