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  2. Exit status - Wikipedia

    en.wikipedia.org/wiki/Exit_status

    In Java, any method can call System.exit(int status), unless a security manager does not permit it.This will terminate the currently running Java Virtual Machine. "The argument serves as a status code; by convention, a nonzero status code indicates abnormal termination."

  3. Bad command or file name - Wikipedia

    en.wikipedia.org/wiki/Bad_command_or_file_name

    "foo" is not recognized as an internal or external command, operable program or batch file. Some early Unix shells produced the equally cryptic " foo: no such file or directory " again accurately describing what is wrong but confusing users.

  4. binfmt_misc - Wikipedia

    en.wikipedia.org/wiki/Binfmt_misc

    binfmt_misc (Miscellaneous Binary Format) is a capability of the Linux kernel which allows arbitrary executable file formats to be recognized and passed to certain user space applications, such as emulators and virtual machines. [1] It is one of a number of binary format handlers in the kernel that are involved in preparing a user-space program ...

  5. Executable and Linkable Format - Wikipedia

    en.wikipedia.org/wiki/Executable_and_Linkable_Format

    An ELF file has two views: the program header shows the segments used at run time, whereas the section header lists the set of sections.. In computing, the Executable and Linkable Format [2] (ELF, formerly named Extensible Linking Format) is a common standard file format for executable files, object code, shared libraries, and core dumps.

  6. umask - Wikipedia

    en.wikipedia.org/wiki/Umask

    The mask, the umask command and the umask function were not part of the original implementation of UNIX. The operating system evolved in a relatively small computer-center environment, where security was not an issue. It eventually grew to serve hundreds of users from different organizations.

  7. Comparison of command shells - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_command_shells

    A defining feature of the fish shell is built-in syntax highlighting, As the user types, text is colored to represent whether the input is a valid command or not (the executable exists and the user has permissions to run it), and valid file paths are underlined.

  8. Not a typewriter - Wikipedia

    en.wikipedia.org/wiki/Not_a_typewriter

    If the destination address was local, but referred to a user name not found in the local password file, the message sent back to the originator of the email was the announcement that the person they were attempting to communicate with was not a typewriter.

  9. Execution (computing) - Wikipedia

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

    Executable code, an executable file, or an executable program, sometimes simply referred to as an executable or binary, is a list of instructions and data to cause a computer "to perform indicated tasks according to encoded instructions", [1] as opposed to a data file that must be interpreted by a program to be meaningful.