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.\" 37.Dd June 6, 1993 38.Dt TEE 1 39.Os 40.Sh NAME 41.Nm tee 42.Nd pipe fitting 43.Sh SYNOPSIS 44.Nm 45.Op Fl ai 46.Op Ar 47.Sh DESCRIPTION 48The 49.Nm 50utility copies standard input to standard output, 51making a copy in zero or more files. 52The output is unbuffered. 53.Pp 54The following options are available: 55.Bl -tag -width Ds 56.It Fl a 57Append the output to the files rather than 58overwriting them. 59.It Fl i 60Ignore the 61.Dv SIGINT 62signal. 63.El 64.Pp 65The following operands are available: 66.Bl -tag -width file 67.It Ar file 68A pathname of an output 69.Ar file . 70.El 71.Pp 72The 73.Nm 74utility takes the default action for all signals, 75except in the event of the 76.Fl i 77option. 78.Pp 79The 80.Nm 81utility exits 0 on success, and >0 if an error occurs. 82.Sh STANDARDS 83The 84.Nm 85function is expected to be 86.St -p1003.2 87compatible. 88