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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.
In addition to the binary application code, the executables may contain headers and tables with relocation and fixup information as well as various kinds of meta data. Among those formats listed, the ones in most common use are PE (on Microsoft Windows), ELF (on Linux and most other versions of Unix), Mach-O (on macOS and iOS) and MZ (on DOS).
Microsoft first introduced the PE format with Windows NT 3.1, replacing the older 16-bit New Executable (NE) format. Soon after, Windows 95, 98, ME, and the Win32s extension for Windows 3.1x, all adopted the PE structure. Each PE file includes a DOS executable header, which generally displays the message "This program cannot be run in DOS mode ...
Changes made to the command line environment after SetLocal commands are local to the batch file. EndLocal command restores the previous settings. [17] The Call command allows subroutines within batch file. The Call command in COMMAND.COM only supports calling external batch files. File name parser extensions to the Set command are comparable ...
The original DOS executable file format. These formats can be identified by the letters "MZ" at the beginning of the file in ASCII. Later formats may contain an MZ DOS stub header. [2] 16-bit New Executable (NE) Introduced with the multitasking MS-DOS 4.0 and also used by 16-bit OS/2 and Windows, NE can be identified by the "NE" in ASCII.
Command Prompt, a CLI shell in Windows Bash, a widely adopted Unix shell. A command-line interface (CLI) is an operating system shell that uses alphanumeric characters typed on a keyboard to provide instructions and data to the operating system, interactively.
In computer programming, a usage message or help message is a brief message displayed by a program that utilizes a command-line interface for execution. This message usually consists of the correct command line usage for the program and includes a list of the correct command-line arguments or options acceptable to said program.