1.\" $NetBSD: basename.1,v 1.15 2002/02/08 01:36:19 ross Exp $ 2.\" 3.\" Copyright (c) 1990, 1993, 1994 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.\" @(#)basename.1 8.2 (Berkeley) 4/18/94 38.\" 39.Dd April 18, 1994 40.Dt BASENAME 1 41.Os 42.Sh NAME 43.Nm basename , 44.Nm dirname 45.Nd return filename or directory portion of pathname 46.Sh SYNOPSIS 47.Nm 48.Ar string 49.Op Ar suffix 50.Nm dirname 51.Ar string 52.Sh DESCRIPTION 53.Nm 54deletes any prefix ending with the last slash 55.Ql \&/ 56character present in 57.Ar string , 58and a 59.Ar suffix , 60if given. 61The resulting filename is written to the standard output. 62A non-existent suffix is ignored. 63.Pp 64.Nm dirname 65deletes the filename portion, beginning 66with the last slash 67.Ql \&/ 68character to the end of 69.Ar string , 70and writes the result to the standard output. 71.Sh EXIT STATUS 72Both the 73.Nm 74and 75.Nm dirname 76utilities 77exit 0 on success, and \*[Gt]0 if an error occurs. 78.Sh EXAMPLES 79The following line sets the shell variable 80.Ev FOO 81to 82.Pa /usr/bin . 83.Pp 84.Dl FOO=`dirname /usr/bin/trail` 85.Sh SEE ALSO 86.Xr csh 1 , 87.Xr sh 1 88.Sh STANDARDS 89The 90.Nm 91and 92.Nm dirname 93utilities conform to 94.St -p1003.2-92 . 95