1.修改upgrade.sh脚本，升级完成后自动删除升级文件包

wuwei

2025-05-30 9084e3393212d75a758c8e6a28c665ddcc5fc03b

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#!/bin/sh
sn=`sn`
mac=0A:84:7F:
 
mac=$mac`echo ${sn:8:2}`":"
mac=$mac`echo ${sn:10:2}`":"
mac=$mac`echo ${sn:12:2}`
echo "mac: $mac"