how to get Raspberry Pi System Information All In One

如何获取树莓派系统信息

$ cd /proc && ls
$ cd /proc && ls -al

version

$ cat /proc/version
Linux version 5.15.84-v8+ (dom@buildbot) (aarch64-linux-gnu-gcc-8 (Ubuntu/Linaro 8.4.0-3ubuntu1) 8.4.0, GNU ld (GNU Binutils for Ubuntu) 2.34) #1613 SMP PREEMPT Thu Jan 5 12:03:08 GMT 2023

cpuinfo CPU

$ cat /proc/cpuinfo

processor	: 0
BogoMIPS	: 38.40
Features	: fp asimd evtstrm crc32 cpuid
CPU implementer	: 0x41
CPU architecture: 8
CPU variant	: 0x0
CPU part	: 0xd03
CPU revision	: 4

processor	: 1
BogoMIPS	: 38.40
Features	: fp asimd evtstrm crc32 cpuid
CPU implementer	: 0x41
CPU architecture: 8
CPU variant	: 0x0
CPU part	: 0xd03
CPU revision	: 4

processor	: 2
BogoMIPS	: 38.40
Features	: fp asimd evtstrm crc32 cpuid
CPU implementer	: 0x41
CPU architecture: 8
CPU variant	: 0x0
CPU part	: 0xd03
CPU revision	: 4

processor	: 3
BogoMIPS	: 38.40
Features	: fp asimd evtstrm crc32 cpuid
CPU implementer	: 0x41
CPU architecture: 8
CPU variant	: 0x0
CPU part	: 0xd03
CPU revision	: 4

Hardware	: BCM2835
Revision	: a22082
Serial		: 0000000095bf9be6
Model		: Raspberry Pi 3 Model B Rev 1.2

meminfo 内存

$ cat /proc/meminfo
MemTotal:         931460 kB
MemFree:          135776 kB
MemAvailable:     602524 kB
Buffers:           26604 kB
Cached:           476416 kB
SwapCached:            0 kB
Active:           109196 kB
Inactive:         591260 kB
Active(anon):        984 kB
Inactive(anon):   201676 kB
Active(file):     108212 kB
Inactive(file):   389584 kB
Unevictable:          16 kB
Mlocked:              16 kB
SwapTotal:        102396 kB
SwapFree:         102140 kB
Dirty:                 0 kB
Writeback:             0 kB
AnonPages:        197484 kB
Mapped:           155512 kB
Shmem:              5224 kB
KReclaimable:      28016 kB
Slab:              53512 kB
SReclaimable:      28016 kB
SUnreclaim:        25496 kB
KernelStack:        3872 kB
PageTables:         6184 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:      568124 kB
Committed_AS:    1163016 kB
VmallocTotal:   259653632 kB
VmallocUsed:       11004 kB
VmallocChunk:          0 kB
Percpu:              688 kB
CmaTotal:         262144 kB
CmaFree:           92120 kB

partitions 分区

$ cat /proc/partitions
major minor  #blocks  name

   1        0       4096 ram0
   1        1       4096 ram1
   1        2       4096 ram2
   1        3       4096 ram3
   1        4       4096 ram4
   1        5       4096 ram5
   1        6       4096 ram6
   1        7       4096 ram7
   1        8       4096 ram8
   1        9       4096 ram9
   1       10       4096 ram10
   1       11       4096 ram11
   1       12       4096 ram12
   1       13       4096 ram13
   1       14       4096 ram14
   1       15       4096 ram15
 179        0   31166976 mmcblk0
 179        1     262144 mmcblk0p1
 179        2   30900736 mmcblk0p2

vcgencmd

$ vcgencmd measure_temp
# temp=46.7'C

$ vcgencmd measure_volts core
volt=1.3062V

$ vcgencmd measure_clock arm
frequency(48)=600062000

$ vcgencmd codec_enabled H264

$ vcgencmd get_mem arm
arm=948M

$ vcgencmd get_mem gpu
gpu=76M

free

$ free --help
$ free -h
               total        used        free      shared  buff/cache   available
内存：      909Mi       257Mi       133Mi       5.0Mi       518Mi       588Mi
交换：       99Mi       0.0Ki        99Mi

devicetree

# ❌
$  cat /sys/firmware/devicetree/model

$ cd /sys/firmware/devicetree/ && ls
# base

$ cd /sys/firmware/devicetree/base && ls
# model
# ...
# leds


# ✅
$ cat /sys/firmware/devicetree/base/model
# Raspberry Pi 3 Model B Rev 1.2

# leds
$ cd /sys/firmware/devicetree/base/leds
# led-act
# led-pwr

$ cd /sys/firmware/devicetree/base/leds && ls -al
总用量 0
drwxr-xr-x  4 root root  0  4月 10 15:55 .
drwxr-xr-x 25 root root  0  8月  7  2022 ..
-r--r--r--  1 root root 10  4月 10 15:58 compatible
drwxr-xr-x  2 root root  0  4月 10 15:58 led-act
drwxr-xr-x  2 root root  0  4月 10 15:58 led-pwr
-r--r--r--  1 root root  5  4月 10 15:58 name
-r--r--r--  1 root root  4  4月 10 15:58 phandle
pi@raspberrypi:/sys/firmware/devicetree/base/leds $ cat name
ledspi@raspberrypi:/sys/firmware/devicetree/base/leds $ cd led-act/
pi@raspberrypi:/sys/firmware/devicetree/base/leds/led-act $ ls
default-state  gpios  label  linux,default-trigger  name  phandle
pi@raspberrypi:/sys/firmware/devicetree/base/leds/led-act $ cat gpios 
7pi@raspberrypi:/sys/firmware/devicetree/base/leds/led-act $ cat label 
led0pi@raspberrypi:/sys/firmware/devicetree/base/leds/led-act $