Grep is a command used in Linux, UNIX and Unix-like operating systems to search text, files or any document for a user-specific pattern, a string of text or a matching character. It displays the matching line on the screen that contains the searched object/objects. Grep is one of the most powerful commands on operating systems like Unix or Linux.
Communication media refers to the means of delivering and receiving data or information. In telecommunication, these means are transmission and storage tools or channels for data storage and transmission.
The term is also commonly used in place of mass media or news media.
Different media are employed for transmitting data from one computer terminal to the central computer or to other computer systems inside some kind of network.
The most commonly used data communication media include:
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