Configuration files

hierarchical database used by the Microsoft Windows operating system and its applications

thumb|alt=A .htaccess file open in a text editor|A .htaccess file An .htaccess (hypertext access) file is a directory-level configuration file supported by several web servers, used for configuration of website-access settings such as URL redirection, access control, and MIME type handling. The leading dot makes it a hidden file in Unix-like environments.

computer configuration file to map hostnames to IP addresses

AUTOEXEC.BAT is a system file that was originally on DOS-type operating systems. It is a plain-text batch file in the root directory of the boot device. The name of the file is an abbreviation of "automatic execution", which describes its function in automatically executing commands on system startup; the filename was coined in response to the 8.3 filename limitations of the FAT file system family. In the autoexec.bat file one can execute every command being available either internally within the OS-specific command.com TSR or as an extra command (.com/.exe files)

configuration file format

software file used to configure the initial settings for a computer program

passwd is a command on Unix, Plan 9, Inferno, and most Unix-like operating systems used to change a user's password. The password entered by the user is run through a key derivation function to create a hashed version of the new password, which is saved. Only the hashed version is stored; the entered password is not saved for security reasons.

'''' is the configuration file for the DOS and OS/2 operating systems that specifies startup options options that cannot be changed after the system has booted. The data it contains is read by the system and used to configure many aspects including memory management, peripherals and applications. Each line can contain a name-value pair that is either a directive'' that sets the value of a system setting or with name "DEVICE" extends system capability by loading a file such as a device driver or a terminate-and-stay-resident (TSR) program. was introduced with DOS 2.0.

fstab (after file systems table) is a system file commonly found in the directory /etc on Unix and Unix-like computer systems. The /etc/fstab file is used by utilities from the util-linux package (such as mount and findmnt), but it's not limited to them — it is also processed by systemd via systemd-fstab-generator for automatic mounting during boot. The fstab file typically lists all available disk partitions and other types of file systems and data sources that may not necessarily be disk-based, and indicates how they are to be initialized or otherwise integrated into the larger file system s

.htpasswd is a flat-file used to store usernames and password for basic authentication on an Apache HTTP Server. The name of the file is given in the .htaccess configuration, and can be anything, although ".htpasswd" is the canonical name. The file name starts with a dot, because most Unix-like operating systems consider any file that begins with a dot to be hidden. The htpasswd command is used to manage .htpasswd file entries.

An autorun.inf file is a text file that can be used by the AutoRun and AutoPlay components of Microsoft Windows operating systems. For the file to be discovered and used by these component, it must be located in the root directory of a volume. As Windows has a case-insensitive view of filenames, the autorun.inf file can be stored as AutoRun.inf or Autorun.INF or any other case combination.

.properties is a file extension for files mainly used in Java-related technologies to store the configurable parameters of an application. They can also be used for storing strings for Internationalization and localization; these are known as Property Resource Bundles.

SYSTEM.INI is an initialization (INI file) used in early versions of Microsoft Windows (from 1.01 up to Me) to load device drivers and the default Windows shell (Program Manager or Windows Explorer), among other system settings. Many of these settings were honored in Windows 9x (95, 98 and Me), although the INI files had begun to be phased out in favor of the Windows Registry. Windows NT 4.0, 2000, XP and Server 2003 still acknowledge some SYSTEM.INI entries in order to provide backwards compatibility with older 16-bit applications. Windows Vista and beyond also have SYSTEM.INI as well. Howeve

component in Java Platform, Enterprise Edition applications

The file xorg.conf is a file used for configuring the X.Org Server. While typically located in , its location may vary across operating system distributions..

The LMHOSTS (LAN Manager Hosts) file is used to enable Domain Name Resolution under Windows when other methods, such as WINS, fail. It is used in conjunction with workgroups and domains. If you are looking for a simple, general mechanism for the local specification of IP addresses for specific hostnames (server names), use the HOSTS file, not the LMHOSTS file.

WIN.INI is a basic INI file that was used in versions of the Microsoft Windows operating environment up to Windows 3.11 to store basic settings at boot time. By default, all font, communications drivers, wallpaper, screen saver, and language settings were stored in WIN.INI by Windows 3.x. Many of these settings were honored in Windows 9x, although the files had begun to be phased out in favor of the Windows registry. Windows XP still acknowledged some entries in the WIN.INI file to provide backwards compatibility with older 16-bit applications. However, when a fresh install of XP is performed,