truss — Troubleshooting tool for tracing system calls. SunOS equivalent of strace. More information: <https:

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}}