enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. exec (system call) - Wikipedia

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

    Wrapper scripts often use this command to run a program (either directly or through an interpreter or virtual machine) after setting environment variables or other configuration. By using exec, the resources used by the shell program do not need to stay in use after the program is started. [2] The exec command can also perform a redirection.

  3. Fork–exec - Wikipedia

    en.wikipedia.org/wiki/Fork–exec

    When the child process calls exec(), all data in the original program is lost, and it is replaced with a running copy of the new program. This is known as overlaying . Although all data are replaced, the file descriptors that were open in the parent are closed only if the program has explicitly marked them close-on-exec .

  4. List of GNU Core Utilities commands - Wikipedia

    en.wikipedia.org/wiki/List_of_GNU_Core_Utilities...

    This is a list of commands from the GNU Core Utilities for Unix environments. These commands can be found on Unix operating systems and most Unix-like operating systems.. GNU Core Utilities include basic file, shell and text manipulation utilities.

  5. fork (system call) - Wikipedia

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

    For a process to start the execution of a different program, it first forks to create a copy of itself. Then, the copy, called the "child process", calls the exec system call to overlay itself with the other program: it ceases execution of its former program in favor of the other. The fork operation creates a separate address space for the ...

  6. List of POSIX commands - Wikipedia

    en.wikipedia.org/wiki/List_of_POSIX_commands

    Generate a C-language program cross-reference table System V date: Misc Mandatory Display the date and time Version 1 AT&T UNIX dd: Filesystem Mandatory Convert and copy a file Version 5 AT&T UNIX delta: SCCS Optional (XSI) Make a delta (change) to an SCCS file PWB UNIX df: Filesystem Mandatory Report free disk space Version 1 AT&T UNIX diff ...

  7. Spawn (computing) - Wikipedia

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

    The current process may wait for the child to terminate or may continue to execute concurrent computing. Creating a new subprocess requires enough memory in which both the child process and the current program can execute. There is a family of spawn functions in DOS, inherited by Microsoft Windows.

  8. System call - Wikipedia

    en.wikipedia.org/wiki/System_call

    A high-level overview of the Linux kernel's system call interface, which handles communication between its various components and the userspace. 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.

  9. Execution (computing) - Wikipedia

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

    Execution in computer and software engineering is the process by which a computer or virtual machine interprets and acts on the instructions of a computer program.Each instruction of a program is a description of a particular action which must be carried out, in order for a specific problem to be solved.