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.
A high-energy radio frequency weapon (HERF) is a directed-energy weapon used to disrupt digital equipment, such as computers. HERF works by blasting high-intensity radio waves at electronics, disrupting their operation.
A HERF is slso known as a HERF gun.
A HERF blast is a highly concentrated blast of electromagnetic radiation that can completely erase a hard disk, crash the PC or even fuse the silicon barriers on the chips, rendering the computer useless. However, in most cases, a HERF gun does not permanently damage a computer.
The majority of electrical appliances are at risk of this type of attack, although most electronic equipment in airplanes and other military vehicles is resistant to it.
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