IO_Redirect

内核文件重定向

cat proc/sys/kernel/random/boot_id res = 4d43ca5e-7a9e-453e-83b5-a55865e759de

/proc/sys/kernel/random/boot_id -> /storage/emulated/0/Download/boot_id

cat /proc/sys/kernel/random/boot_id res = boot_id redirected