Command Data Flows & Redirecting Standard Error/Input

Question 1

data stream number for standard error?

Answer 1

standard error = 2

Question 2

append multiple error messages into one text file named error.txt?

Answer 2

cat “error” 2» error.txt

Question 3

send error messages into one text file named error.txt?

Answer 3

cat “error” 2> error.txt

Question 4

Goal:

• Create 2 files Error.txt/output.txt
• have SDout go to output.txt
• have errors go to error.txt

1 CMD

Answer 4

cat 1> outout.txt 2> errors.txt

Question 5

how to use cat IOT read from input.txt

Answer 5

cat 0< filename.txt

Question 6

how to read standard output from a file

Answer 6

cat 0<

Question 7

how to read standard output from input.txt and redirect the data into a new file named hello.txt

Answer 7

cat 0

Question 8

how to append text from input.txt and into hello.txt.

Answer 8

cat 0>hello.txt

Question 9

how to redirect data from a file into a terminal window with the destination address of /dev/pts/0

Answer 9

cat 0< “data” >/dev/pts/0