2019-04-14 18:51:21 -04:00
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# truss
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> Troubleshooting tool for tracing system calls.
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> SunOS equivalent of strace.
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2021-03-31 13:09:14 +02:00
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> More information: <https://www.unix.com/man-page/linux/1/truss>.
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2019-04-14 18:51:21 -04:00
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- Start tracing a program by executing it, following all child processes:
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`truss -f {{program}}`
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- Start tracing a specific process by its PID:
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`truss -p {{pid}}`
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- Start tracing a program by executing it, showing arguments and environment variables:
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`truss -a -e {{program}}`
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- Count time, calls, and errors for each system call and report a summary on program exit:
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`truss -c -p {{pid}}`
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- Trace a process filtering output by system call:
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`truss -p {{pid}} -t {{system_call_name}}`
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