C Shell

The C shell offers features such as aliasing and history, as does the Korn shell.

cancel

The cancel command is used to cancel a specific print request that is waiting in the print queue. cancel permits cancellation of requests based on their request ID or requests based on the login ID of their owner.

Character Device

A character device is a device, such as a keyboard, tape drive, Character Deviceinal, raw partition, or printer, that receives information as a stream of characters, one character at a time. The characters may be transferred either bit-by-bit (serial transmission) or byte-by-byte (parallel transmission) but not in blocks.

Character Special

A character special file works with devices like Character Specialinals, raw partitions, and printers, which transfer individual characters rather than blocks of characters.

checksum

A checksum is a number that is calculated from the binary bytes of the file. It is used to dechecksumine if the file contents have changed.

chgrp

The chgrp command is used to change the group association of a file. The group may be either a decimal group ID or a group name found in the group ID file /etc/group.

chmod

The chmod command is used to change the access permissions of a file.

chown

The chown command changes the owner of a file. The owner may be either a decimal user ID or a login name found in the /etc/passwd file.

Client

Strictly speaking, a client is a process that communicates with a server process. The client is commonly used to refer to a host that uses the services from one or more servers on a network.

Client File

A client file is a record of the save sets for the client.

Coldstart File

A coldstart file gives a network information services plus (NIS+) client a copy of a directory object that it can use as a starting point for contacting servers in the NIS+ namespace. The directory object contains the address, public keys, and other information about the master and replica servers that support the directory.

Command Mode

When using the vi editor, the command mode is the mode in which you can position the cursor and use edit commands to perform various actions. When you open a file with vi, you are in command mode. All commands are initiated from command mode.

Common Desktop Environment

The Common Desktop Environment (CDE) is a graphical user interface between the user and the operating system. It provides built-in menus for users to select and run utilities and programs without using the Solaris 2.x commands. It enables users to control multiple working documents or applications on the screen at the same time.

Compressing

Compressing is the process of reducing a file's size by applying a compression algorithm to the content of a file. Compressing is useful when sending a large file via email; it prevents overflowing the recipient's mail box.

Concatenate

Concatenation is when the output of one or more files or commands are joined together.

When multiple physical disk slices are combined to create a large metadevice.

Concatenatation

Concatenate means combining multiple physical slices to create a large metadevice.

Configuration Cluster

During system installation with SunInstall(TM), a configuration cluster refers to a logical grouping of software used to facilitate installation.

Console

The console device is the main input/output device that is used to access a system and display all system messages. This can either be a display monitor and keyboard or a shell window.

Control Character

A control character is a character that, in a particular context, initiates, modifies, or stops an operation.
 

Core Configuration Cluster

The core configuration contains the software needed to boot and run the Solaris 2.x environment, which can be used to configure a standalone system, but not a server. It includes some networking software and the drivers required to run the OpenWindowsTM environment. It does not include the OpenWindows software or man pages.

cpio

The cpio command is a user-level command that is used for backing up and restoring files from tapes or diskettes. The cpio command does not recognize file system boundaries; cpio supports multivolume backups.

Credentials

Credentials are the bundle of numbers that are sent by the principal to the server to authenticate the principal. A principal's credential is generated and verified each time the principal makes a network information service plus (NIS+) request. When a user is logged in to an NIS+ client machine as superuser, requests for service carries with it the workstation's credentials.

crontab

The crontab command enables users to modify their crontab configuration file. This configuration is then executed by the cron utility at the appropriate times.

cshrc

The $HOME/.cshrc file is an initialization file that is executed after the /etc/.login file when a user logs into a C shell. The .cshrc file is also executed each time a new shell is forked. The file contains variables and parameters that are local to a specific shell. The $HOME/.cshrc file is copied from /etc/skel/local.cshrc by admintool when a new account is created.

CSMA-CD

Carrier sense, multiple-access with collision detection (CSMA-CD) is the method of decsma-cdining which workstation can transmit on the network. Each workstation listens for a carrier signal on the network. The lack of a carrier indicates no system is transmitting. Any workstation can transmit when the network is idle. If two workstations attempt to transmit simultaneously, the collision detection capability of the network adapters causes both to stop transmitting. Transmission is resumed once the network is idle.