1.\" Copyright (c) 1990, 1993, 1994 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.\" @(#)basename.1 8.2 (Berkeley) 4/18/94 36.\" $FreeBSD$ 37.\" 38.Dd April 18, 1994 39.Dt BASENAME 1 40.Os 41.Sh NAME 42.Nm basename , dirname 43.Nd return filename or directory portion of pathname 44.Sh SYNOPSIS 45.Nm basename 46.Ar string 47.Op Ar suffix 48.Nm dirname 49.Ar string 50.Sh DESCRIPTION 51.Nm Basename 52deletes any prefix ending with the last slash 53.Ql \&/ 54character present in 55.Ar string 56(after first stripping trailing slashes), 57and a 58.Ar suffix , 59if given. 60The 61.Ar suffix 62is not stripped if it is identical to the remaining characters in 63.Ar string . 64The resulting filename is written to the standard output. 65A non-existent suffix is ignored. 66.Pp 67.Nm Dirname 68deletes the filename portion, beginning 69with the last slash 70.Ql \&/ 71character to the end of 72.Ar string 73(after first stripping trailing slashes), 74and writes the result to the standard output. 75.Sh EXAMPLES 76The following line sets the shell variable 77.Ev FOO 78to 79.Pa /usr/bin . 80.Pp 81.Dl FOO=`dirname /usr/bin/trail` 82.Sh DIAGNOSTICS 83Both the 84.Nm 85and 86.Nm dirname 87utilities exit 0 on success, and >0 if an error occurs. 88.Sh SEE ALSO 89.Xr csh 1 , 90.Xr sh 1 91.Sh STANDARDS 92The 93.Nm 94and 95.Nm dirname 96functions are expected to be POSIX 1003.2 compatible. 97