1.\" Copyright (c) 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" This code is derived from software contributed to Berkeley by 5.\" the Institute of Electrical and Electronics Engineers, Inc. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 10.\" 1. Redistributions of source code must retain the above copyright 11.\" notice, this list of conditions and the following disclaimer. 12.\" 2. Redistributions in binary form must reproduce the above copyright 13.\" notice, this list of conditions and the following disclaimer in the 14.\" documentation and/or other materials provided with the distribution. 15.\" 3. All advertising materials mentioning features or use of this software 16.\" must display the following acknowledgement: 17.\" This product includes software developed by the University of 18.\" California, Berkeley and its contributors. 19.\" 4. Neither the name of the University nor the names of its contributors 20.\" may be used to endorse or promote products derived from this software 21.\" without specific prior written permission. 22.\" 23.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33.\" SUCH DAMAGE. 34.\" 35.\" @(#)tee.1 8.1 (Berkeley) 6/6/93 36.\" $FreeBSD: src/usr.bin/tee/tee.1,v 1.4.2.2 2001/08/16 13:17:06 ru Exp $ 37.\" $DragonFly: src/usr.bin/tee/tee.1,v 1.2 2003/06/17 04:29:32 dillon Exp $ 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 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 Ar 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.Sh DIAGNOSTICS 81.Ex -std 82.Sh STANDARDS 83The 84.Nm 85utility is expected to be 86.St -p1003.2 87compatible. 88