Linux
Advanced
What is Strace?
A diagnostic tool that traces system calls and signals made by a process, useful for debugging and performance analysis.
Strace intercepts and records system calls (file operations, network calls, memory allocation) made by a process. Usage: strace -p PID (attach to running process) or strace command (trace from start).
Useful flags include -e trace=network (filter network calls), -c (summary statistics), -f (follow forks), and -t (timestamps). Strace is invaluable for debugging permission issues, missing files, and understanding program behavior.
