Troubleshooting
Occasionally, problems or unusual behavior can arise in processes. Solaris provides a number of tools to help us troubleshoot problems.
Truss
Solaris provides a tool called truss that can be used to actually see the system calls that a program makes during its execution. If we were to look at a simple example of a program that makes a system call, we could choose the rm command, which simply deletes a file. We know that whenever a program wants to delete a file it must make a system call to the kernel to actually perform the action. The system call to delete a file is actually called “unlink”; the name is appropriate because if a file has many links and we remove one of them, the file won't actually go. It is only when the last ...
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