truss

Troubleshooting tool for tracing system calls. SunOS equivalent of strace. More information: https://www.unix.com/man-page/linux/1/truss.

• Start tracing a program by executing it, following all child processes:
  truss -f {{program}}
• Start tracing a specific process by its PID:
  truss -p {{pid}}
• Start tracing a program by executing it, showing arguments and environment variables:
  truss -a -e {{program}}
• Count time, calls, and errors for each system call and report a summary on program exit:
  truss -c -p {{pid}}
• Trace a process filtering output by system call:
  truss -p {{pid}} -t {{system_call_name}}