1.\" $OpenBSD: tee.1,v 1.11 2010/09/03 11:09:29 jmc Exp $ 2.\" $NetBSD: tee.1,v 1.4 1994/12/09 01:43:37 jtc Exp $ 3.\" 4.\" Copyright (c) 1991, 1993 5.\" The Regents of the University of California. All rights reserved. 6.\" 7.\" This code is derived from software contributed to Berkeley by 8.\" the Institute of Electrical and Electronics Engineers, Inc. 9.\" 10.\" Redistribution and use in source and binary forms, with or without 11.\" modification, are permitted provided that the following conditions 12.\" are met: 13.\" 1. Redistributions of source code must retain the above copyright 14.\" notice, this list of conditions and the following disclaimer. 15.\" 2. Redistributions in binary form must reproduce the above copyright 16.\" notice, this list of conditions and the following disclaimer in the 17.\" documentation and/or other materials provided with the distribution. 18.\" 3. Neither the name of the University nor the names of its contributors 19.\" may be used to endorse or promote products derived from this software 20.\" without specific prior written permission. 21.\" 22.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32.\" SUCH DAMAGE. 33.\" 34.\" @(#)tee.1 8.1 (Berkeley) 6/6/93 35.\" 36.Dd $Mdocdate: September 3 2010 $ 37.Dt TEE 1 38.Os 39.Sh NAME 40.Nm tee 41.Nd pipe fitting 42.Sh SYNOPSIS 43.Nm tee 44.Op Fl ai 45.Op Ar 46.Sh DESCRIPTION 47The 48.Nm 49utility copies standard input to standard output, 50making a copy in zero or more files. 51The output is unbuffered. 52.Pp 53The options are as follows: 54.Bl -tag -width Ds 55.It Fl a 56Append the output to the files rather than 57overwriting them. 58.It Fl i 59Ignore the 60.Dv SIGINT 61signal. 62.El 63.Pp 64The following operands are available: 65.Bl -tag -width file 66.It Ar file 67A pathname of an output 68.Ar file . 69.El 70.Pp 71The 72.Nm 73utility takes the default action for all signals, 74except in the event of the 75.Fl i 76option. 77.Sh EXIT STATUS 78.Ex -std tee 79.Sh STANDARDS 80The 81.Nm 82utility is compliant with the 83.St -p1003.1-2008 84specification. 85