'arch' really isn't a good choice of command name:
$ which arch
/bin/arch
$ man arch
ARCH(1) Linux Programmer's Manual ARCH(1)
NAME
arch - print machine architecture
-- Russell King (rmk@arm.linux.org.uk) The developer of ARM Linux http://www.arm.linux.org.uk/personal/aboutme.html- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/