cat

The cat command is a computing command that allows users to view the contents of files. It is commonly used in Linux and other Unix-like operating systems. The cat command can be used to view text files, such as ASCII files and script files. It can also be used to concatenate files, combining multiple files into one file. The cat command has several options that can be used to alter its behavior. For example, the -n option can be used to number the outputted lines. The -b option can be used to number only non-blank lines. The -s option can silence repeated empty lines so that only one empty line is displayed. Many other options can be used with the cat command, making it a very versatile tool for computing.