Command Cheat Sheet - Vxworks

VxWorks supports TCP/IP stacks and network configuration via shell commands.

Best practice: ensure correct endianness and cache coherency when transferring binary modules; prefer TFTP for small development images, NFS for root file systems. VxWorks supports TCP/IP stacks and network configuration via

Since the shell is a C interpreter, you can declare and print variables:

int x = 42;               // Declare
char * msg = "Hello";     // Declare string
printVal x;               // Print value
printf("Msg: %s\n", msg); // Use stdio functions

Before you fix anything, you need to know what is running and what hardware is present. routeAdd / routeShow — Manage routing table entries

| Command | Description | Use Case | | :--- | :--- | :--- | | i | Lists all tasks (ID, Name, State, Priority, PC). | "Why is my system hanging?" | | ti "taskName" | Displays detailed Task Information (stack usage, registers). | Stack overflow debugging. | | version | Shows VxWorks version and build date. | "Are we on 6.9 or 7.0?" | | show | Generic show command (use with specific objects). | See below. | | devs | Lists all device drivers installed. | "Is my serial port registered?" | | memShow | Shows current heap memory usage (free/allocated). | Memory leak detection. | | sysSuspend | Suspends the system (debug only). | Forcing a crash dump. | | sysResume | Resumes after sysSuspend. | Recovery. |

i                     // See all tasks. Look for one with 'PEND' or 'READY'
ti "myHighTask"       // Inspect stack and PC
taskSuspend "myHighTask" // Pause it. See if system recovers.
taskResume "myHighTask"  // Resume.
taskPrioritySet "myHighTask", 150 // Bump it lower.

| Command | Description | |---------|-------------| | semShow | Show all semaphores | | semDelete <semId> | Delete a semaphore | | semGive <semId> | Give a semaphore | | semTake <semId> <timeout> | Take a semaphore | | semInfo <semId> | Display semaphore info |

| Command | Description | |---------|-------------| | help or h | Show available shell commands | | lkup [“string”] | List symbols in system (partial match) | | symFind <name> | Find symbol address | | print <expr> | Evaluate expression (C syntax) | | b <address> | Set breakpoint (if shell has debugging support) | | c | Continue after break | | t | Trace single step | | tr | Trace until return | | reboot | Restart VxWorks | | boot | Boot from default device |

| Command | Description | |---------|-------------| | ifShow | Show network interfaces (IP, MAC, status) | | routeShow | Show routing table | | ping “host” [count] | ICMP echo | | inetStatShow | Show all network connections (TCP/UDP) | | arpShow | Show ARP cache | | netStat | Network statistics (depending on build) |