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.\" $FreeBSD$ 34.\" 35.Dd April 4, 1994 36.Dt APPLY 1 37.Os BSD 4.2 38.Sh NAME 39.Nm apply 40.Nd apply a command to a set of arguments 41.Sh SYNOPSIS 42.Nm apply 43.Op Fl a Ns Ar c 44.Op Fl Ns Ar # 45.Ar command argument 46.Op Ar ... 47.Sh DESCRIPTION 48.Nm apply 49runs the named 50.Ar command 51on each 52argument 53.Ar argument 54in turn. 55.Pp 56Character sequences of the form 57.Dq Li \&%d 58in 59.Ar command , 60where 61.Sq Li d 62is a digit from 1 to 9, are replaced by the 63.Li d Ns \'th 64following unused 65.Ar argument . 66In this case, the largest digit number of arguments are discarded for 67each execution of 68.Ar command . 69.Pp 70The options are as follows: 71.Bl -tag -width "-ac" 72.It Fl Ns Ar # 73Normally arguments are taken singly; the optional number 74.Fl # 75specifies the number of arguments to be passed to 76.Ar command . 77If the number is zero, 78.Ar command 79is run, without arguments, once for each 80.Ar argument . 81.Pp 82If any sequences of 83.Dq Li \&%d 84occur in 85.Ar command , 86the 87.Fl # 88option is ignored. 89.It Fl a Ns Ar c 90The use of the character 91.Sq Li % 92as a magic character may be changed with the 93.Fl a 94option. 95.El 96.Sh ENVIRONMENT 97The following environment variable affects the execution of 98.Nm apply : 99.Bl -tag -width SHELL 100.It Ev SHELL 101Pathname of shell to use. 102If this variable is not defined, the Bourne shell is used. 103.El 104.Sh EXAMPLES 105.Bl -tag -width apply -compact 106.It Li "apply echo a*" 107is similar to 108.Xr ls 1 ; 109.It Li "apply \-2 cmp a1 b1 a2 b2 a3 b3" 110compares the `a' files to the `b' files; 111.It Li "apply \-0 who 1 2 3 4 5" 112runs 113.Xr who 1 1145 times; and 115.It Li "apply \'ln %1 /usr/joe\'" * 116links all files in the current directory to the directory 117.Pa /usr/joe . 118.El 119.Sh FILES 120.Bl -tag -width /bin/sh -compact 121.It Pa /bin/sh 122default shell 123.El 124.Sh AUTHORS 125.An Rob Pike 126.Sh BUGS 127Shell metacharacters in 128.Ar command 129may have bizarre effects; it is best to enclose complicated 130commands in single quotes 131.Pq '' . 132.Sh HISTORY 133The 134.Nm 135command appeared in 136.Bx 4.2 . 137