Cheat Sheet #day31

lspci Cheatsheet

Basic Usage

Display all PCI devices:
```
  lspci
```

Display Options

Verbose output (more detailed information):
```
  lspci -v
```
Very verbose output (even more details):
```
  lspci -vv
```
Maximum verbosity (most detailed output):
```
  lspci -vvv
```
Show detailed output for a specific device (replace <device> with the specific device ID):
```
  lspci -v -s <device>
```
Show only the specified device:
```
  lspci -s <device>
```

Information Types

Show numerical IDs (useful for scripting):
```
  lspci -n
```
Show both textual and numerical IDs:
```
  lspci -nn
```
Display information in a tree-like format:
```
  lspci -t
```
Show kernel drivers handling each device:
```
  lspci -k
```
Show hexadecimal dump of the standard config space:
```
  lspci -x
```
Show detailed hexadecimal dump of the config space:
```
  lspci -xxx
```
Show capabilities (if available):
```
  lspci -vv -s <device>
```

Filtering and Sorting

Filter output by vendor or device name (case insensitive):
```
  lspci | grep -i <vendor_or_device_name>
```

Filter and show detailed output for specific devices:

  lspci -v | grep -i -A 20 <vendor_or_device_name>

PCI Resources

Show the resource configuration:
```
  lspci -v -m
```

Show only resource information:

  lspci -vvv | grep -E '^[0-9a-f]+:|Region|Memory'

Example Commands

List all NVIDIA devices:
```
  lspci | grep -i nvidia
```
Show detailed information for a specific device (e.g., the first Ethernet controller):
```
  lspci -v | grep -i ethernet -A 10
```
List devices along with their kernel drivers:
```
  lspci -k
```

Saving and Parsing Output

Save the output to a file:
```
  lspci -v > lspci_output.txt
```
Read and parse saved output:
```
  cat lspci_output.txt
```

This cheatsheet provides a quick reference to the most commonly used lspci commands and options, helping you to efficiently manage and troubleshoot PCI devices on your system.

Cheat Sheet #day31 - lspci