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When I do strace echo hello, I see it is using /bin/echo, but built-in echo should be found first. Is it a functionality of strace to skip built-in commands? strace -- version 4.5.19
I understand that strace won't work on built-in commands the way it works on system executables.
Because strace isn't a shell, strace uses exec.
When you type a command to the shell (e.g., echo hello world), the shell interprets that command and will check to see if a shell built-in command can be used before looking for a separate executable.
When you use strace, you are asking it to locate an executable and run it on your behalf. Unlike the shell, strace has no built-in commands of its own.
