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How to Use ‘cat’ Command in Linux with Examples

This guide will teach you how to use the cat command in Linux. All the below examples were tested on RHEL/CentOS 7.6.

‘Cat’ is one of the most commonly used commands in Linux operating systems (short for “concatenate”). This is a standard Unix command that concatenates and displays files. Using the cat command, you can read and write data from standard input and output devices.