openwrt修改默认wifi名称
位于openwrt根目录的 /lib/wifi
config wifi-iface option device ra0 option network lan option mode ap option wps none option ssid meefi_$(hwmac=`ifconfig eth0 | grep HWaddr | awk '{print $5}'` && echo ${hwmac:12:4}$((${hwmac:16}-1)) | sed 's/://g')