1.\" $NetBSD: tee.1,v 1.6 2002/02/08 01:36:33 ross Exp $ 2.\" 3.\" Copyright (c) 1991, 1993 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" This code is derived from software contributed to Berkeley by 7.\" the Institute of Electrical and Electronics Engineers, Inc. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 3. All advertising materials mentioning features or use of this software 18.\" must display the following acknowledgement: 19.\" This product includes software developed by the University of 20.\" California, Berkeley and its contributors. 21.\" 4. Neither the name of the University nor the names of its contributors 22.\" may be used to endorse or promote products derived from this software 23.\" without specific prior written permission. 24.\" 25.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35.\" SUCH DAMAGE. 36.\" 37.\" @(#)tee.1 8.1 (Berkeley) 6/6/93 38.\" 39.Dd June 6, 1993 40.Dt TEE 1 41.Os 42.Sh NAME 43.Nm tee 44.Nd pipe fitting 45.Sh SYNOPSIS 46.Nm 47.Op Fl ai 48.Op Ar file ... 49.Sh DESCRIPTION 50The 51.Nm 52utility copies standard input to standard output, 53making a copy in zero or more files. 54The output is unbuffered. 55.Pp 56The following options are available: 57.Bl -tag -width Ds 58.It Fl a 59Append the output to the files rather than 60overwriting them. 61.It Fl i 62Ignore the 63.Dv SIGINT 64signal. 65.El 66.Pp 67The following operands are available: 68.Bl -tag -width file 69.It file 70A pathname of an output 71.Ar file . 72.El 73.Pp 74The 75.Nm 76utility takes the default action for all signals, 77except in the event of the 78.Fl i 79option. 80.Pp 81The 82.Nm 83utility exits 0 on success, and \*[Gt]0 if an error occurs. 84.Sh STANDARDS 85The 86.Nm 87function is expected to be 88.Tn POSIX 89.St -p1003.2 90compatible. 91