Certain files in the operating system are required to have a specific format. The formats of the files that are provided with the operating system are discussed in the documentation for those files. If a file is generated by either the system or a user rather than provided on the distribution medium, it is discussed as a file format in this documentation. File formats often are also associated with header files that contain C-language definitions and structures for the files.
More information about the following file formats is provided in this documentation:
acct | Describes the format of the records in the system accounting files. |
Describes the structure of the standard a.out file and its associated header files. | |
ar | Describes the format of an archive file. |
audit | Describes values used by the auditing system as well as the structure of a bin. |
bootptab | Describes the default configuration database for the Internet Boot Protocol server (bootpd). |
CGM | Defines a file format for storage and retrieval of device-independent graphics. |
charmap | Defines character symbols as character encodings. |
core | Describes the structures created in a core file as a result of a core dump. |
cpio | Describes the cpio (copy in/out) archive file. |
eqnchar | Contains special character definitions for the eqn and neqn commands. |
lastlog | Defines the last login attributes for users. |
ldapattribmap | Defines AIX to LDAP attribute name mapping to support configurable LDAP server schema. |
locale definition | Contains one or more categories that describe a locale. |
locale method | Specifies the methods to be overridden when constructing a locale. |
magic | Defines file types. |
mailrc | Sets defaults for the mail command. |
mh_alias | Defines aliases for the Message Handler (MH). |
mib_defs | Provides descriptions of Management Information Base (MIB) variables for the snmpinfo command. |
nroff and troff input | Specifies input file format for the nroff and troff commands. |
nterm | Describes the format of the terminal driver tables for the nroff command. |
profile | Describes the format of the profile and .profile files, which set the user environment at login time. |
queuedefs | Describes the format of the file used by the cron daemon to handle event types. |
sccsfile | Describes the format of a Source Code Control System (SCCS) file. |
setmaps | Defines the text of a code-set map file and a terminal map file. |
terminfo | Contains compiled terminfo source files. |
TIFF | Enables InfoCrafter to support scanned images that have been imported into Interleaf documents. |
trcfmt | Stores trace templates. |
troff | Describes the output language of the troff command. |
troff Font | Describes the format of the troff command font files. |
tunables | Centralizes tunable parameter values. |
UIL | Contains information on the user interface for a widget-based application. |
utmp, wtmp, failedlogin | Describes the format of the user and accounting information in the utmp, wtmp, and failedlogin files. |
vgrindefs | Contains the language definition database for the vgrind command. |
WML | Generates variable UIL compiler components. |
ate.def | Determines default settings for use in asynchronous connections and file transfers. |
ATE Dialing Directory | Lists phone numbers that the ATE program uses to establish modem connections. |
Devices | Contains information about devices on the local system that can establish a connection to a remote computer using the Basic Networking Utilities (BNU) program. |
Dialcodes | Contains the initial digits of telephone numbers used to establish remote connections over a phone line. |
Dialers | Lists modems used for Basic Networking Utilities (BNU) remote communications links. |
Maxuuscheds | Limits the number of instances of the uusched and uucico daemons that can run simultaneously. |
Maxuuxqts | Limits the number of instances of the BNU uuxqt daemon that can run simultaneously on the local system. |
Permissions | Specifies BNU permissions for remote systems that call or are called by the local system. |
Poll | Specifies when the BNU program should poll remote systems. |
Systems | Lists remote computers with which users of the local system can communicate using the Basic Networking Utilities (BNU) program. |
phones | Describes connections used by the tip command to contact remote systems. |
remote | Describes remote systems contacted by the tip command. |
.tiprc | Provides initial settings of variables for the tip command. |
3270keys | Defines user keyboard mapping and colors for TELNET (3270). |
Domain Cache | Defines the root name server or servers for a DOMAIN name server host. |
Domain Data | Stores name resolution information for the named daemon. |
Domain Local Data | Defines the local loopback information for named on the name server host. |
Domain Reverse Data | Stores reverse name resolution information for the named daemon. |
ftpusers | Specifies local user names that cannot be used by remote FTP clients. |
gated.conf | Contains configuration information for the gated daemon. |
gateways | Specifies Internet routing information to the routed and gated daemons on a network. |
hosts | Defines the Internet Protocol (IP) name and address of the local host and specifies the names and addresses of remote hosts. |
hosts.equiv | Specifies remote systems that can execute commands on the local system. |
hosts.lpd | Specifies remote hosts that can print on the local host. |
inetd.conf | Defines how the inetd daemon handles Internet service requests. |
map3270 | Defines keyboard mapping and colors for the tn3270 command. |
.netrc | Specifies automatic login information for the ftp and rexec commands. |
networks | Contains the network name file. |
protocols | Defines the Internet protocols used on the local host. |
rc.net | Defines host configuration for the following areas: network interfaces, host name, default gateway, and any static routes. |
resolv.conf | Defines DOMAIN name server information for local resolver routines. |
.rhosts | Specifies remote users that can use a local user account on a network. |
services | Defines the sockets and protocols used for Internet services. |
Standard Resource Record Format | Defines the format of lines in the DOMAIN data files. |
telnet.conf | Translates a client's terminal-type strings into terminfo file entries. |