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	1	.\" Copyright (c) 1983, 1990, 1993
	2	.\" The Regents of the University of California. All rights reserved.
	3	.\"
	4	.\" Redistribution and use in source and binary forms, with or without
	5	.\" modification, are permitted provided that the following conditions
	6	.\" are met:
	7	.\" 1. Redistributions of source code must retain the above copyright
	8	.\" notice, this list of conditions and the following disclaimer.
	9	.\" 2. Redistributions in binary form must reproduce the above copyright
	10	.\" notice, this list of conditions and the following disclaimer in the
	11	.\" documentation and/or other materials provided with the distribution.
	12	.\" 3. All advertising materials mentioning features or use of this software
	13	.\" must display the following acknowledgement:
	14	.\" This product includes software developed by the University of
	15	.\" California, Berkeley and its contributors.
	16	.\" 4. Neither the name of the University nor the names of its contributors
	17	.\" may be used to endorse or promote products derived from this software
	18	.\" without specific prior written permission.
	19	.\"
	20	.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	21	.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	22	.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	23	.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	24	.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	25	.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	26	.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	27	.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	28	.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	29	.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	30	.\" SUCH DAMAGE.
	31	.\"
	32	.\" @(#)apply.1 8.2 (Berkeley) 4/4/94
	33	.\" $FreeBSD: src/usr.bin/apply/apply.1,v 1.14 2002/04/19 23:16:06 charnier Exp $
	34	.\"
	35	.Dd April 4, 1994
	36	.Dt APPLY 1
	37	.Os
	38	.Sh NAME
	39	.Nm apply
	40	.Nd apply a command to a set of arguments
	41	.Sh SYNOPSIS
	42	.Nm
	43	.Op Fl a Ar c
	44	.Op Fl d
	45	.Op Fl #
	46	.Ar command argument ...
	47	.Sh DESCRIPTION
	48	The
	49	.Nm
	50	utility runs the named
	51	.Ar command
	52	on each
	53	argument
	54	.Ar argument
	55	in turn.
	56	.Pp
	57	Character sequences of the form
	58	.Dq Li \&%d
	59	in
	60	.Ar command ,
	61	where
	62	.Sq Li d
	63	is a digit from 1 to 9, are replaced by the
	64	.Li d Ns \'th
	65	following unused
	66	.Ar argument .
	67	In this case, the largest digit number of arguments are discarded for
	68	each execution of
	69	.Ar command .
	70	.Pp
	71	The options are as follows:
	72	.Bl -tag -width indent
	73	.It Fl #
	74	Normally arguments are taken singly; the optional number
	75	.Fl #
	76	specifies the number of arguments to be passed to
	77	.Ar command .
	78	If the number is zero,
	79	.Ar command
	80	is run, without arguments, once for each
	81	.Ar argument .
	82	.Pp
	83	If any sequences of
	84	.Dq Li \&%d
	85	occur in
	86	.Ar command ,
	87	the
	88	.Fl #
	89	option is ignored.
	90	.It Fl a Ar c
	91	The use of the character
	92	.Sq Li %
	93	as a magic character may be changed with the
	94	.Fl a
	95	option.
	96	.It Fl d
	97	Display the commands that would have been executed, but do not actually
	98	execute them.
	99	.El
	100	.Sh ENVIRONMENT
	101	The following environment variable affects the execution of
	102	.Nm :
	103	.Bl -tag -width SHELL
	104	.It Ev SHELL
	105	Pathname of shell to use.
	106	If this variable is not defined, the Bourne shell is used.
	107	.El
	108	.Sh EXAMPLES
	109	.Bl -tag -width apply -compact
	110	.It Li "apply echo a*"
	111	is similar to
	112	.Xr ls 1 ;
	113	.It Li "apply \-2 cmp a1 b1 a2 b2 a3 b3"
	114	compares the `a' files to the `b' files;
	115	.It Li "apply \-0 who 1 2 3 4 5"
	116	runs
	117	.Xr who 1
	118	5 times; and
	119	.It Li "apply \'ln %1 /usr/joe\'" *
	120	links all files in the current directory to the directory
	121	.Pa /usr/joe .
	122	.El
	123	.Sh FILES
	124	.Bl -tag -width /bin/sh -compact
	125	.It Pa /bin/sh
	126	default shell
	127	.El
	128	.Sh AUTHORS
	129	.An Rob Pike
	130	.Sh BUGS
	131	Shell metacharacters in
	132	.Ar command
	133	may have bizarre effects; it is best to enclose complicated
	134	commands in single quotes
	135	.Pq '' .
	136	.Sh HISTORY
	137	The
	138	.Nm
	139	command appeared in
	140	.Bx 4.2 .