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2. System call - Wikipedia

   en.wikipedia.org/wiki/System_call

   In computing, a system call (commonly abbreviated to syscall) is the programmatic way in which a computer program requests a service from the operating system [a] on which it is executed. This may include hardware-related services (for example, accessing a hard disk drive or accessing the device's camera), creation and execution of new ...

3. ioctl - Wikipedia

   en.wikipedia.org/wiki/Ioctl

   ioctl. In computing, ioctl (an abbreviation of input/output control) is a system call for device-specific input/output operations and other operations which cannot be expressed by regular file semantics. It takes a parameter specifying a request code; the effect of a call depends completely on the request code.

4. open (system call) - Wikipedia

   en.wikipedia.org/wiki/Open_(system_call)

   open (system call) For most file systems, a program initializes access to a file in a file system using the open system call. This allocates resources associated to the file (the file descriptor), and returns a handle that the process will use to refer to that file. In some cases the open is performed by the first access.

5. Remote procedure call - Wikipedia

   en.wikipedia.org/wiki/Remote_procedure_call

   The call is a local procedure call, with parameters pushed on to the stack in the normal way. The client stub packs the parameters into a message and makes a system call to send the message. Packing the parameters is called marshalling. The client's local operating system sends the message from the client machine to the server machine.

6. Linux kernel interfaces - Wikipedia

   en.wikipedia.org/wiki/Linux_kernel_interfaces

   The system call interface of a kernel is the set of all implemented and available system calls in a kernel. In the Linux kernel, various subsystems, such as the Direct Rendering Manager (DRM), define their own system calls, all of which are part of the system call interface. Various issues with the organization of the Linux kernel system calls ...

7. stat (system call) - Wikipedia

   en.wikipedia.org/wiki/Stat_(system_call)

   stat (system call) stat command line. stat () is a Unix system call that returns file attributes about an inode. The semantics of stat () vary between operating systems. As an example, Unix command ls uses this system call to retrieve information on files that includes: atime: time of last access (ls -lu) mtime: time of last modification (ls -l ...

8. read (system call) - Wikipedia

   en.wikipedia.org/wiki/Read_(system_call)

   read (system call) In modern POSIX compliant operating systems, a program that needs to access data from a file stored in a file system uses the read system call. The file is identified by a file descriptor that is normally obtained from a previous call to open. This system call reads in data in bytes, the number of which is specified by the ...

9. Process management (computing) - Wikipedia

   en.wikipedia.org/wiki/Process_management_(computing)

   In general-purpose systems, however, some way is needed to create and terminate processes as needed during operation. There are four principal events that cause a process to be created: System initialization. Execution of process creation system call by a running process. A user request to create a new process. Initiation of a batch job.