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.\" %sccs.include.redist.man% 8.\" 9.\" @(#)basename.1 8.2 (Berkeley) 04/18/94 10.\" 11.Dd 12.Dt BASENAME 1 13.Os 14.Sh NAME 15.Nm basename , dirname 16.Nd return filename or directory portion of pathname 17.Sh SYNOPSIS 18.Nm basename 19.Ar string 20.Op Ar suffix 21.Nm dirname 22.Ar string 23.Sh DESCRIPTION 24.Nm Basename 25deletes any prefix ending with the last slash 26.Ql \&/ 27character present in 28.Ar string , 29and a 30.Ar suffix , 31if given. 32The resulting filename is written to the standard output. 33If 34.Ar string 35ends in the slash character, 36.Ql / , 37or is the same as the 38.Ar suffix 39argument, 40a newline is output. 41A non-existent suffix is ignored. 42.Pp 43.Nm Dirname 44deletes the filename portion, beginning 45with the last slash 46.Ql \&/ 47character to the end of 48.Ar string , 49and writes the result to the standard output. 50.Sh EXAMPLES 51The following line sets the shell variable 52.Ev FOO 53to 54.Pa /usr/bin . 55.Pp 56.Dl FOO=`dirname /usr/bin/trail` 57.Pp 58Both the 59.Nm basename 60and 61.Nm dirname 62exit 0 on success, and >0 if an error occurs. 63.Sh SEE ALSO 64.Xr csh 1 65.Xr sh 1 66.Sh STANDARDS 67The 68.Nm basename 69and 70.Nm dirname 71functions are expected to be POSIX 1003.2 compatible. 72