The Complete Practical Docker Guide - Where Process Data Streams Send Data by Default

The video tutorial explains the concept of data streams in processes, focusing on stdin, stdout, and stderr. It describes how these streams interact with shell processes, using examples like LS and mkdir. The tutorial also covers redirecting stdout to a file and introduces numeric IDs for stream redirection. It concludes with a discussion on processes that accept data via stdin.

What are the three data streams every process has?

• stdin, stdout, stderr

• in, out, err

• input, output, error

• read, write, execute

How does the shell process handle the output of commands like 'ls'?

• It sends the output to another process

• It redirects the output to a file

• It prints the output to the screen

• It discards the output

What happens when you enter 'mkdir' without arguments?

• It shows an error message

• It lists all directories

• It does nothing

• It creates a directory

What is the purpose of redirecting stdout to a file?

• To send the output to another process

• To display the output on the screen

• To delete the output

• To save the output for later use

Which processes do not accept input via stdin?

• grep and awk

• ls and mkdir

• find and sed

• cat and echo