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  2. Symbolic link - Wikipedia

    en.wikipedia.org/wiki/Symbolic_link

    In computing, a symbolic link (also symlink or soft link) is a file whose purpose is to point to a file or directory (called the "target") by specifying a path thereto. [ 1 ] Symbolic links are supported by POSIX and by most Unix-like operating systems , such as FreeBSD , Linux , and macOS .

  3. ln (Unix) - Wikipedia

    en.wikipedia.org/wiki/Ln_(Unix)

    The ln command is a standard Unix command utility used to create a hard link or a symbolic link (symlink) to an existing file or directory. [1] The use of a hard link allows multiple filenames to be associated with the same file since a hard link points to the inode of a given file, the data of which is stored on disk.

  4. Entry point - Wikipedia

    en.wikipedia.org/wiki/Entry_point

    In most of today's popular programming languages and operating systems, a computer program usually only has a single entry point.. In C, C++, D, Zig, Rust and Kotlin programs this is a function named main; in Java it is a static method named main (although the class must be specified at the invocation time), and in C# it is a static method named Main.

  5. List of POSIX commands - Wikipedia

    en.wikipedia.org/wiki/List_of_POSIX_commands

    Generate programs for lexical tasks: Version 7 AT&T UNIX link: Filesystem Optional (XSI) Create a hard link to a file Version 1 AT&T UNIX ln: Filesystem Mandatory Link files Version 1 AT&T UNIX locale: Misc Mandatory Get locale-specific information localedef: Misc Mandatory Define locale environment logger: Shell programming Mandatory Log ...

  6. "Hello, World!" program - Wikipedia

    en.wikipedia.org/wiki/"Hello,_World!"_program

    program through their software package manager systems, which can be invoked with the command hello. It serves as a sanity check and a simple example of installing a software package. For developers, it provides an example of creating a .deb package, either traditionally or using debhelper , and the version of hello used, GNU Hello , serves as ...

  7. Unix shell - Wikipedia

    en.wikipedia.org/wiki/Unix_shell

    A Unix shell is a command-line interpreter or shell that provides a command line user interface for Unix-like operating systems. The shell is both an interactive command language and a scripting language, and is used by the operating system to control the execution of the system using shell scripts. [2]

  8. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. init - Wikipedia

    en.wikipedia.org/wiki/Init

    systemd, a software suite, full replacement for init in Linux that includes an init daemon, with concurrent starting of services, service manager, and other features. Used by Debian (replaces SysV init), Ubuntu among other popular linux distributions. SystemStarter, a process spawner started by the BSD-style init in Mac OS X prior to Mac OS X v10.4