The
tee utility copies standard input to standard output, making a copy in zero or more files. The output is unbuffered.
The following options are available:
-a
Append the output to the files rather than overwriting them.
-i
Ignore the SIGINT signal.
The following operands are available:
file
A pathname of an output file.
The
tee utility takes the default action for all signals, except in the event of the
-i option.
The
tee utility exits 0 on success, and >0 if an error occurs.