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: head/usr.bin/basename/basename.1 216370 2010-12-11 08:32:16Z joel $ 33.\" 34.Dd April 18, 1994 35.Dt BASENAME 1 36.Os 37.Sh NAME 38.Nm basename , 39.Nm dirname 40.Nd return filename or directory portion of pathname 41.Sh SYNOPSIS 42.Nm 43.Ar string 44.Op Ar suffix 45.Nm 46.Op Fl a 47.Op Fl s Ar suffix 48.Ar string 49.Op Ar ... 50.Nm dirname 51.Ar string 52.Op Ar ... 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 96.Nm 97together with 98.Ar -a 99interprets the second argument as a 100.Ar string 101and produces "foo" followed by "bar" for: 102.Pp 103.Dl basename -a /usr/bin/foo /sbin/bar 104.Pp 105Passing multiple arguments to 106.Nm dirname 107produces 108.Pa /usr/bin 109followed by 110.Pa /sbin 111.Pp 112.Dl dirname /usr/bin/foo /sbin/bar 113.Pp 114The following line sets the shell variable 115.Ev FOO 116to 117.Pa /usr/bin . 118.Pp 119.Dl FOO=`dirname /usr/bin/trail` 120.Sh SEE ALSO 121.Xr csh 1 , 122.Xr sh 1 , 123.Xr basename 3 , 124.Xr dirname 3 125.Sh STANDARDS 126The 127.Nm 128and 129.Nm dirname 130utilities are expected to be 131.St -p1003.2 132compatible. 133