tee clone output stream	Command
	SYNOPSIS DESCRIPTION   Options EXAMPLES DIAGNOSTICS PORTABILITY SEE ALSO

---

SYNOPSIS

tee [-ai] [file ...]

---

DESCRIPTION

The tee command clones an output stream. It copies the standard input to each output file as well as to the standard output.

Options

-a

appends to (rather than overwrites) each output file.

-i

ignores interrupt signals, making it suitable for use as a background process.

---

EXAMPLES

prog | tee file

This runs the program prog and pipes the program's standard output into tee. As a result, tee writes the output to both the standard output and the specified file.

---

DIAGNOSTICS

Possible exit status values are:

0

Successful completion.

1

Failure due to any of the following:

— out of memory

— I/O error reading or writing to a file

— error creating an output file

— error opening an output file for append

2

Failure due to invalid command line option.

---

PORTABILITY

POSIX.2. x/OPEN Portability Guide 4.0.

---

SEE ALSO

Commands:

cat