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. Neither the name of the University nor the names of its contributors 16.\" may be used to endorse or promote products derived from this software 17.\" without specific prior written permission. 18.\" 19.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29.\" SUCH DAMAGE. 30.\" 31.\" @(#)basename.1 8.2 (Berkeley) 4/18/94 32.\" $FreeBSD: src/usr.bin/basename/basename.1,v 1.17 2006/03/16 17:21:52 jkoshy Exp $ 33.\" $DragonFly: src/usr.bin/basename/basename.1,v 1.7 2007/08/28 15:36:44 pavalos Exp $ 34.\" 35.Dd April 18, 1994 36.Dt BASENAME 1 37.Os 38.Sh NAME 39.Nm basename , 40.Nm dirname 41.Nd return filename or directory portion of pathname 42.Sh SYNOPSIS 43.Nm 44.Ar string 45.Op Ar suffix 46.Nm 47.Op Fl a 48.Op Fl s Ar suffix 49.Ar string 50.Op Ar ... 51.Nm dirname 52.Ar string 53.Sh DESCRIPTION 54The 55.Nm 56utility deletes any prefix ending with the last slash 57.Ql \&/ 58character present in 59.Ar string 60(after first stripping trailing slashes), 61and a 62.Ar suffix , 63if given. 64The 65.Ar suffix 66is not stripped if it is identical to the remaining characters in 67.Ar string . 68The resulting filename is written to the standard output. 69A non-existent suffix is ignored. 70If 71.Fl a 72is specified, then every argument is treated as a 73.Ar string 74as if 75.Nm 76were invoked with just one argument. 77If 78.Fl s 79is specified, then the 80.Ar suffix 81is taken as its argument, and all other arguments are treated as a 82.Ar string . 83.Pp 84The 85.Nm dirname 86utility deletes the filename portion, beginning 87with the last slash 88.Ql \&/ 89character to the end of 90.Ar string 91(after first stripping trailing slashes), 92and writes the result to the standard output. 93.Sh EXIT STATUS 94.Ex -std basename dirname 95.Sh EXAMPLES 96The following line sets the shell variable 97.Ev FOO 98to 99.Pa /usr/bin . 100.Pp 101.Dl FOO=`dirname /usr/bin/trail` 102.Sh SEE ALSO 103.Xr csh 1 , 104.Xr sh 1 , 105.Xr basename 3 , 106.Xr dirname 3 107.Sh STANDARDS 108The 109.Nm 110and 111.Nm dirname 112utilities are expected to be 113.St -p1003.2 114compatible. 115The 116.Nm 117utility does not conform to 118.St -p1003.1-2004 . 119The 120.Nm dirname 121utility conforms to 122.St -p1003.1-2004 . 123