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 1.8.2.4 2002/07/15 04:07:25 keramida Exp $ 34.\" $DragonFly: src/usr.bin/apply/apply.1,v 1.3 2006/02/17 19:38:54 swildner Exp $ 35.\" 36.Dd April 4, 1994 37.Dt APPLY 1 38.Os 39.Sh NAME 40.Nm apply 41.Nd apply a command to a set of arguments 42.Sh SYNOPSIS 43.Nm 44.Op Fl a Ar c 45.Op Fl d 46.Op Fl # 47.Ar command argument ... 48.Sh DESCRIPTION 49The 50.Nm 51utility runs the named 52.Ar command 53on each 54argument 55.Ar argument 56in turn. 57.Pp 58Character sequences of the form 59.Dq Li \&%d 60in 61.Ar command , 62where 63.Sq Li d 64is a digit from 1 to 9, are replaced by the 65.Li d Ns \'th 66following unused 67.Ar argument . 68In this case, the largest digit number of arguments are discarded for 69each execution of 70.Ar command . 71.Pp 72The options are as follows: 73.Bl -tag -width indent 74.It Fl # 75Normally arguments are taken singly; the optional number 76.Fl # 77specifies the number of arguments to be passed to 78.Ar command . 79If the number is zero, 80.Ar command 81is run, without arguments, once for each 82.Ar argument . 83.Pp 84If any sequences of 85.Dq Li \&%d 86occur in 87.Ar command , 88the 89.Fl # 90option is ignored. 91.It Fl a Ar c 92The use of the character 93.Sq Li % 94as a magic character may be changed with the 95.Fl a 96option. 97.It Fl d 98Display the commands that would have been executed, but do not actually 99execute them. 100.El 101.Sh ENVIRONMENT 102The following environment variable affects the execution of 103.Nm : 104.Bl -tag -width SHELL 105.It Ev SHELL 106Pathname of shell to use. 107If this variable is not defined, the Bourne shell is used. 108.El 109.Sh FILES 110.Bl -tag -width /bin/sh -compact 111.It Pa /bin/sh 112default shell 113.El 114.Sh EXAMPLES 115.Bl -tag -width apply -compact 116.It Li "apply echo a*" 117is similar to 118.Xr ls 1 ; 119.It Li "apply \-2 cmp a1 b1 a2 b2 a3 b3" 120compares the `a' files to the `b' files; 121.It Li "apply \-0 who 1 2 3 4 5" 122runs 123.Xr who 1 1245 times; and 125.It Li "apply \'ln %1 /usr/joe\'" * 126links all files in the current directory to the directory 127.Pa /usr/joe . 128.El 129.Sh HISTORY 130The 131.Nm 132command appeared in 133.Bx 4.2 . 134.Sh AUTHORS 135.An Rob Pike 136.Sh BUGS 137Shell metacharacters in 138.Ar command 139may have bizarre effects; it is best to enclose complicated 140commands in single quotes 141.Pq '' . 142