MacOS下Launch Daemon加载报错126：USB触发Shell脚本失败

我正尝试配置Launch Daemon，实现USB设备连接时自动运行Shell脚本。使用launchctl load com.myplist.plist注册守护进程时，出现Error 126错误。通过LaunchControl排查，仅提示问题出在Shell层面。该Shell脚本在终端中可正常运行，改用定时运行的plist配置时仍遇到相同错误。

USB触发的plist配置 #

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC -//Apple Computer//DTD PLIST 1.0//EN http://www.apple.com/DTDs/PropertyList-1.0.dtd >
<plist version="1.0">
<dict>
    <key>Label</key>
    <string>com.example.program</string>
    <key>ProgramArguments</key>
    <array>
    <string>/DIRECTORY TO FILE/testing.sh</string>
    </array>
    <key>LaunchEvents</key>
    <dict>
            <key>com.apple.iokit.matching</key>
            <dict>
                    <key>com.apple.device-attach</key>
                    <dict>
                            <key>idProduct</key>
                            <integer>1234</integer>
                            <key>idVendor</key>
                            <integer>1337</integer>
                            <key>IOProviderClass</key>
                            <string>IOUSBDevice</string>
                            <key>IOMatchLaunchStream</key>
                            <true/>
                    </dict>
            </dict>
    </dict>
</dict>
</plist>

Shell脚本内容 #

#!/bin/bash
# osascript -e 'display notification "" with title "RUNNING"'
USB_FILE="/Volumes/Kindle/documents/My Clippings.txt"
DEST_DIR="$HOME/Desktop"
PYTHON_SCRIPT="PATH TO FILE/KindleObsidianV2.py"
LOG_FILE="$HOME/Desktop/python_script.log"

if diskutil list | grep -q "Kindle"; then
    if [ $? -eq 0 ]; then
        rsync -av "$USB_FILE" "$DEST_DIR"
        osascript -e 'display notification "File copied successfully" with title "USB File Copied"'
        python3 "$PYTHON_SCRIPT"
    
    # Check if Python script had an error
        if [ $? -ne 0 ]; then
            # Display error notification
            osascript -e 'display notification "Python script encountered an error. Check log file." with title "Python Script Error"'
            # Save Python log to desktop
            mv "$LOG_FILE" "$HOME/Desktop/python_script_error.log"
        else
            # Delete copied file
            rm "$DEST_DIR/My Clippings.txt"
            # Display completion notification
            osascript -e 'display notification "Script execution completed successfully" with title "Script Execution Completed"'
        fi
    else
        osascript -e 'display notification "Failed to copy file from USB. Check USB connection and try again." with title "Rsync Error"'
    fi
else
    echo "USB device not found."
fi

定时运行的plist配置（补充测试） #

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Label</key>
    <string>com.amer.kindle_monitor.plist</string>
    <key>RunAtLoad</key>
    <true/>
    <key>StartInterval</key>
    <integer>20</integer>
    <key>KeepAlive</key>
    <true/>
    <key>ProgramArguments</key>
    <array>
        <string>/Users/amer_/Desktop/KindleProject/testing.sh</string>
    </array>
</dict>
</plist>

已尝试的解决方案（均无效） #

• 检查所有文件的运行权限
• 使用sudo和不使用sudo运行（使用sudo时因处于Launch Agents而非Daemons出现问题）
• 改用Launch Daemons（仍报相同错误）
• 在守护进程中显式配置终端的所有PATH变量

恳请提供帮助或建议！

内容的提问来源于stack exchange，提问作者Azal-Amer