Input/output redirection

Question 1

What constitute the standard streams?

Answer 1

Standard input (stdin), standard output (stdout) and standard error (stderr).

Question 2

Stdin from file?

Answer 2

mycommand

Question 3

Stdout to file (create, overwrite)?

Answer 3

mycommand > outfile

Question 4

Stdout to file (append)?

Answer 4

mycommand»_space; outfile

Question 5

Stderr to file (create, overwrite)?

Answer 5

mycommand 2> errorfile

Question 6

Stdout and stderr to different files (create, overwrite)?

Answer 6

mycommand > outfile 2> errorfile

Question 7

Stdout and stderr to the same files (create, overwrite)?

Answer 7

mycommand &> outfile