Which of the following commands will send output from the program myapp to both standard
output (stdout) and the file file1.log?
A.
cat < myapp | cat > file1.log
B.
myapp 0>&1 | cat > file1.log
C.
myapp | cat > file1.log
D.
myapp | tee file1.log
E.
tee myapp file1.log
Explanation: