Question

you can use a? instead of ____ command​

Answer 1

It indicates which operations the CPU should perform on a set of data. Programs are usually files that are stored in one of the bin directories, such as /bin, /usr/bin and /usr/local/bin. Commands on Unix-like operating systems are either built-ins or external commands.

Hope it will helps you☺

Answer 2

Answer:

The cat command is mainly used to read and concatenate files, but it can also be used for creating new files. To create a new file run the cat command followed by the redirection operator > and the name of the file you want to create. Press Enter type the text and once you are done press the CRTL+D to save the files.