What is strace command?
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The strace command is the diagnostic utility by which you can trace and monitor the system calls generated by the process. It allows you to find how programs interact with Kernel and can be used for debugging and troubleshooting. For example, let’s find the system calls generated by the ls command:
strace ls
Once you run the above command, the system will start tracing the list command and show the system calls generated by it. Output from the above command includes information like call name, argument, and return values.