freebsd-nq/usr.bin/basename/basename.1
Gordon Bergling 1d733bbc0d Add HISTORY sections to banner(6), basename(1), limits(1) and vmstat(8)
Reviewed by:	bcr (mentor)
Approved by:	bcr (mentor)
MFC after:	7 days
Differential Revision:	https://reviews.freebsd.org/D25019
2020-06-18 13:19:56 +00:00

121 lines
3.2 KiB
Groff

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.\" @(#)basename.1 8.2 (Berkeley) 4/18/94
.\" $FreeBSD$
.\"
.Dd May 26, 2020
.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
.Op Ar ...
.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 EXIT STATUS
.Ex -std basename dirname
.Sh EXAMPLES
The following line sets the shell variable
.Ev FOO
to
.Pa /usr/bin .
.Pp
.Dl FOO=`dirname /usr/bin/trail`
.Sh SEE ALSO
.Xr csh 1 ,
.Xr sh 1 ,
.Xr basename 3 ,
.Xr dirname 3
.Sh STANDARDS
The
.Nm
and
.Nm dirname
utilities are expected to be
.St -p1003.2
compatible.
.Sh HISTORY
The
.Nm
and
.Nm dirname
utilities first appeared in
.Bx 4.4 .