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Troubleshooting tool for tracing system calls.

  • Start tracing a specific process by its PID:

strace -p {{pid}}

  • Trace a process and filter output by system call:

strace -p {{pid}} -e {{system_call_name}}

  • Count time, calls, and errors for each system call and report a summary on program exit:

strace -p {{pid}} -c

  • Show the time spent in every system call:

strace -p {{pid}} -T

  • Start tracing a program by executing it:

strace {{program}}

  • Start tracing file operations of a program:

strace -e trace=file {{program}}