You may want this, but allowing only fd 0-9 is not a POSIX violation. XCU 2.7 Redirection says the maximum fd for redirection is implementation-defined and must be at least 9. This is sufficient for most applications.
You may want this, but allowing only fd 0-9 is not a POSIX violation. XCU 2.7 Redirection says the maximum fd for redirection is implementation- defined and must be at least 9. This is sufficient for most applications.