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System Diagnostics

truss

Traces system calls of processes (BSD strace equivalent).

FreeBSD
Last updated: Report error
Syntax
$truss [OPTIONS] COMMAND
Examples
Examples
$truss ls
Examples
$truss -p 1234
Typical use cases
Trace command
truss ls
Attach process
truss -p 1234
Note Useful for debugging file/network/IPC issues.
Export