Input, Output, Redirection

Question 1

What are the default Input/Output types?

Answer 1

stdin, stdout, stderr

Question 2

What are the number representations of I/O types?

Answer 2

stdin = 0
stdout = 1
stderr = 2

Question 3

What does the > character does in redirection?

Answer 3

redirects standard output to a file overwriting its contents

Question 4

How can you redirect stdout to a file but appending that content?

Answer 4

> >

Question 5

How can you redirect the content of a file to a command?

Answer 5

”

Question 6

What does 2>&1 stands for?

Answer 6

Combines stderr and stdout

Question 7

What does 2>file means?

Answer 7

Redirect stderr to a file

Question 8

What does 2> /dev/null means?

Answer 8

Redirect stderr to nowhere