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freebsd/usr.bin/basename/basename.1
Juli Mallett 549e1e057c Make it possible to have this (basename(1)) perform basename(3) on multiple
files.  The traditional behaviour, 'basename string .suffix', is preserved,
however a suffix may now also be specified via a getopt(3) option, -s, such
that if it is specified in that way, all string arguments follow.  There is
also a new flag, -a, which allows a user to say "yes, please basename(3) on
all arguments".  Update manual to reflect this unobtrusively.

Reviewed by:	obrien
2002-06-30 13:40:35 +00:00

115 lines
3.3 KiB
Groff

.\" Copyright (c) 1990, 1993, 1994
.\" The Regents of the University of California. All rights reserved.
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.\" This code is derived from software contributed to Berkeley by
.\" the Institute of Electrical and Electronics Engineers, Inc.
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.\" @(#)basename.1 8.2 (Berkeley) 4/18/94
.\" $FreeBSD$
.\"
.Dd April 18, 1994
.Dt BASENAME 1
.Os
.Sh NAME
.Nm basename , dirname
.Nd return filename or directory portion of pathname
.Sh SYNOPSIS
.Nm
.Ar string
.Op Ar suffix
.Nm
.Op Fl a
.Op Fl s Ar suffix
.Ar string
.Op Ar ...
.Nm dirname
.Ar string
.Sh DESCRIPTION
The
.Nm
utility deletes any prefix ending with the last slash
.Ql \&/
character present in
.Ar string
(after first stripping trailing slashes),
and a
.Ar suffix ,
if given.
The
.Ar suffix
is not stripped if it is identical to the remaining characters in
.Ar string .
The resulting filename is written to the standard output.
A non-existent suffix is ignored.
If
.Fl a
is specified, then every argument is treated as a
.Ar string
as if
.Nm
were invoked with just one argument.
If
.Fl s
is specified, then the
.Ar suffix
is taken as its argument, and all other arguments are treated as a
.Ar string .
.Pp
The
.Nm dirname
utility deletes the filename portion, beginning
with the last slash
.Ql \&/
character to the end of
.Ar string
(after first stripping trailing slashes),
and writes the result to the standard output.
.Sh EXAMPLES
The following line sets the shell variable
.Ev FOO
to
.Pa /usr/bin .
.Pp
.Dl FOO=`dirname /usr/bin/trail`
.Sh DIAGNOSTICS
.Ex -std basename dirname
.Sh SEE ALSO
.Xr csh 1 ,
.Xr sh 1
.Sh STANDARDS
The
.Nm
and
.Nm dirname
utilities are expected to be
.St -p1003.2
compatible.