Vxworks Command Cheat Sheet -

VxWorks is a real-time operating system (RTOS) widely used in embedded systems. This cheat sheet provides a concise reference to common VxWorks commands, helping users quickly navigate and interact with the system.

Similar to UNIX, VxWorks supports file operations when a filesystem (e.g., dosFs , rt11Fs ) is mounted.

: Display Memory . Displays memory at a specific hex address.

: Start with i + checkStack for task monitoring, d / m for memory debugging, ls / copy for file operations, and ifShow / ping for network verification — this covers 80% of daily debugging needs. vxworks command cheat sheet

Q: How do I display memory usage statistics in VxWorks? A: Use the mem command to display memory usage statistics.

One of the most useful tasks for debugging priority issues is to use i to get a quick summary and taskShow to view detailed fields like (Priority), and STATUS . In VxWorks, priority values range from 0 (highest) to 255 (lowest). Real-time performance relies heavily on these values, so using i to verify which tasks are READY versus PEND is essential.

| Command | Description | |---|---| | tcpstatShow | Show TCP protocol statistics | | udpstatShow | Show UDP protocol statistics | | ipstatShow | Show IP protocol statistics | | icmpstatShow | Show ICMP protocol statistics | | mbufShow | Show network stack data pool statistics | | netStackSysPoolShow | Show network stack system pool statistics | | routestatShow | Display routing statistics | VxWorks is a real-time operating system (RTOS) widely

Press ESC to enter command mode and use standard VI keys:

: Allows interactive modification of the saved boot parameters.

The VxWorks kernel shell gives you immense power, but with that power comes responsibility. : Display Memory

| Command | Description | Example | |---|---|---| | version | Displays VxWorks version and build info. | -> version | | devs | Shows all registered devices in the system. | -> devs | | lkup ["string"] | Looks up symbols (functions/variables) by name. | -> lkup "net" | | lkup "" | Lists all global symbols (useful for debugging). | -> lkup "" | | lkAddr [address] | Finds the symbol closest to a given address. | -> lkAddr 0x123400 | | memShow | Shows current partition free/used counts. | -> memShow | | printErrno [value] | Converts an error code into its text macro name. | -> printErrno 0x3d0005 |

: Switches back from command interpreter mode to C-expression mode. logout / exit : Closes the current shell session. 2. Task Management & Debugging

General commands for system status and direct memory manipulation.

String arguments (like task names or paths) often need to be enclosed in double quotes (e.g., td "tNetTask" ). Commas: Arguments are separated by commas. Case Sensitivity: The shell is case-sensitive. Wildcards: lkup supports wildcards to search for symbols.

: Display memory with ASCII mapping side-by-side.