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: src/usr.bin/basename/basename.1,v 1.17 2006/03/16 17:21:52 jkoshy Exp $ 37.\" $DragonFly: src/usr.bin/basename/basename.1,v 1.7 2007/08/28 15:36:44 pavalos Exp $ 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 51.Op Fl a 52.Op Fl s Ar suffix 53.Ar string 54.Op Ar ... 55.Nm dirname 56.Ar string 57.Sh DESCRIPTION 58The 59.Nm 60utility deletes any prefix ending with the last slash 61.Ql \&/ 62character present in 63.Ar string 64(after first stripping trailing slashes), 65and a 66.Ar suffix , 67if given. 68The 69.Ar suffix 70is not stripped if it is identical to the remaining characters in 71.Ar string . 72The resulting filename is written to the standard output. 73A non-existent suffix is ignored. 74If 75.Fl a 76is specified, then every argument is treated as a 77.Ar string 78as if 79.Nm 80were invoked with just one argument. 81If 82.Fl s 83is specified, then the 84.Ar suffix 85is taken as its argument, and all other arguments are treated as a 86.Ar string . 87.Pp 88The 89.Nm dirname 90utility deletes the filename portion, beginning 91with the last slash 92.Ql \&/ 93character to the end of 94.Ar string 95(after first stripping trailing slashes), 96and writes the result to the standard output. 97.Sh EXIT STATUS 98.Ex -std basename dirname 99.Sh EXAMPLES 100The following line sets the shell variable 101.Ev FOO 102to 103.Pa /usr/bin . 104.Pp 105.Dl FOO=`dirname /usr/bin/trail` 106.Sh SEE ALSO 107.Xr csh 1 , 108.Xr sh 1 , 109.Xr basename 3 , 110.Xr dirname 3 111.Sh STANDARDS 112The 113.Nm 114and 115.Nm dirname 116utilities are expected to be 117.St -p1003.2 118compatible. 119The 120.Nm 121utility does not conform to 122.St -p1003.1-2004 . 123The 124.Nm dirname 125utility conforms to 126.St -p1003.1-2004 . 127