I'm the author of the diozero Java library that is portable across many SBCs and have written a number of utility applications, one of which allows you to display information about the connected board:
> java -cp diozero-sampleapps-1.3.0.jar com.diozero.sampleapps.SystemInformation
Local System Info
Operating System: ubuntu 20.04.2 LTS (Focal Fossa)
I2C buses: [2, 0, 5]
CPU Temperature: 37.27
Native Device Factory: DefaultDeviceFactory
Board: Asus Tinker Board (RAM: 2,048,000 bytes, O/S: ubuntu 20.04.2 LTS (Focal Fossa))
Header: DEFAULT
+-----+----------+--------+----------+--------+----------+-----+
+ GP# + Name + gpiod + Physical + gpiod + Name + GP# +
+-----+----------+--------+----------+--------+----------+-----+
| | 3v3 | | 1 || 2 | | 5v | |
| 252 | GPIO8_A4 | 8:4 | 3 || 4 | | 5v | |
| 253 | GPIO8_A5 | 8:5 | 5 || 6 | | GND | |
| 17 | GPIO0_C1 | 0:17 | 7 || 8 | 5:9 | GPIO5_B1 | 161 |
| | GND | | 9 || 10 | 5:8 | GPIO5_B0 | 160 |
| 164 | GPIO5_B4 | 5:12 | 11 || 12 | 6:0 | GPIO6_A0 | 184 |
| 166 | GPIO5_B6 | 5:14 | 13 || 14 | | GND | |
| 167 | GPIO5_B7 | 5:15 | 15 || 16 | 5:10 | GPIO5_B2 | 162 |
| | 3v3 | | 17 || 18 | 5:11 | GPIO5_B3 | 163 |
| 257 | GPIO8_B1 | 8:9 | 19 || 20 | | GND | |
| 256 | GPIO8_B0 | 8:8 | 21 || 22 | 5:19 | GPIO5_C3 | 171 |
| 254 | GPIO8_A6 | 8:6 | 23 || 24 | 8:7 | GPIO8_A7 | 255 |
| | GND | | 25 || 26 | 8:3 | GPIO8_A3 | 251 |
| 233 | GPIO7_C1 | 7:17 | 27 || 28 | 7:18 | GPIO7_C2 | 234 |
| 165 | GPIO5_B5 | 5:13 | 29 || 30 | | GND | |
| 168 | GPIO5_C0 | 5:16 | 31 || 32 | 7:23 | GPIO7_C7 | 239 |
| 238 | GPIO7_C6 | 7:22 | 33 || 34 | | GND | |
| 185 | GPIO6_A1 | 6:1 | 35 || 36 | 7:7 | GPIO7_A7 | 223 |
| 224 | GPIO7_B0 | 7:8 | 37 || 38 | 6:3 | GPIO6_A3 | 187 |
| | GND | | 39 || 40 | 6:4 | GPIO6_A4 | 188 |
+-----+----------+--------+----------+--------+----------+-----+
Plus GpioReadAll:
> java -cp diozero-sampleapps-1.3.0.jar com.diozero.sampleapps.GpioReadAll
Header: DEFAULT
+-----+----------+------+---+--------+----------+--------+---+------+----------+-----+
+ GP# + Name + Mode + V + gpiod + Physical + gpiod + V + Mode + Name + GP# +
+-----+----------+------+---+--------+----------+--------+---+------+----------+-----+
| | 3v3 | | | | 1 || 2 | | | | 5v | |
| 252 | GPIO8_A4 | In | 0 | 8:4 | 3 || 4 | | | | 5v | |
| 253 | GPIO8_A5 | In | 0 | 8:5 | 5 || 6 | | | | GND | |
| 17 | GPIO0_C1 | In | 0 | 0:17 | 7 || 8 | 5:9 | 0 | Unkn | GPIO5_B1 | 161 |
| | GND | | | | 9 || 10 | 5:8 | 0 | Unkn | GPIO5_B0 | 160 |
| 164 | GPIO5_B4 | In | 0 | 5:12 | 11 || 12 | 6:0 | 0 | Unkn | GPIO6_A0 | 184 |
| 166 | GPIO5_B6 | Unkn | 0 | 5:14 | 13 || 14 | | | | GND | |
| 167 | GPIO5_B7 | Unkn | 0 | 5:15 | 15 || 16 | 5:10 | 0 | In | GPIO5_B2 | 162 |
| | 3v3 | | | | 17 || 18 | 5:11 | 0 | In | GPIO5_B3 | 163 |
| 257 | GPIO8_B1 | In | 0 | 8:9 | 19 || 20 | | | | GND | |
| 256 | GPIO8_B0 | In | 0 | 8:8 | 21 || 22 | 5:19 | 0 | In | GPIO5_C3 | 171 |
| 254 | GPIO8_A6 | In | 0 | 8:6 | 23 || 24 | 8:7 | 0 | In | GPIO8_A7 | 255 |
| | GND | | | | 25 || 26 | 8:3 | 0 | In | GPIO8_A3 | 251 |
| 233 | GPIO7_C1 | In | 0 | 7:17 | 27 || 28 | 7:18 | 0 | In | GPIO7_C2 | 234 |
| 165 | GPIO5_B5 | In | 0 | 5:13 | 29 || 30 | | | | GND | |
| 168 | GPIO5_C0 | In | 0 | 5:16 | 31 || 32 | 7:23 | 0 | Unkn | GPIO7_C7 | 239 |
| 238 | GPIO7_C6 | Unkn | 0 | 7:22 | 33 || 34 | | | | GND | |
| 185 | GPIO6_A1 | Unkn | 0 | 6:1 | 35 || 36 | 7:7 | 0 | Unkn | GPIO7_A7 | 223 |
| 224 | GPIO7_B0 | Unkn | 0 | 7:8 | 37 || 38 | 6:3 | 0 | Unkn | GPIO6_A3 | 187 |
| | GND | | | | 39 || 40 | 6:4 | 0 | Unkn | GPIO6_A4 | 188 |
+-----+----------+------+---+--------+----------+--------+---+------+----------+-----+
