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.\" 34.Dd April 4, 1994 35.Dt APPLY 1 36.Os BSD 4.2 37.Sh NAME 38.Nm apply 39.Nd apply a command to a set of arguments 40.Sh SYNOPSIS 41.Nm apply 42.Op Fl a Ns Ar c 43.Op Fl Ns Ar # 44.Ar command argument 45.Op Ar ... 46.Sh DESCRIPTION 47.Nm apply 48runs the named 49.Ar command 50on each 51argument 52.Ar argument 53in turn. 54.Pp 55Character sequences of the form 56.Dq Li \&%d 57in 58.Ar command , 59where 60.Sq Li d 61is a digit from 1 to 9, are replaced by the 62.Li d Ns \'th 63following unused 64.Ar argument . 65In this case, the largest digit number of arguments are discarded for 66each execution of 67.Ar command . 68.Pp 69The options are as follows: 70.Bl -tag -width "-ac" 71.It Fl Ns Ar # 72Normally arguments are taken singly; the optional number 73.Fl # 74specifies the number of arguments to be passed to 75.Ar command . 76If the number is zero, 77.Ar command 78is run, without arguments, once for each 79.Ar argument . 80.Pp 81If any sequences of 82.Dq Li \&%d 83occur in 84.Ar command , 85the 86.Fl # 87option is ignored. 88.It Fl a Ns Ar c 89The use of the character 90.Sq Li % 91as a magic character may be changed with the 92.Fl a 93option. 94.El 95.Sh ENVIRONMENT 96The following environment variable affects the execution of 97.Nm apply : 98.Bl -tag -width SHELL 99.It Ev SHELL 100Pathname of shell to use. 101If this variable is not defined, the Bourne shell is used. 102.El 103.Sh EXAMPLES 104.Bl -tag -width apply -compact 105.It Li "apply echo a*" 106is similar to 107.Xr ls 1 ; 108.It Li "apply \-2 cmp a1 b1 a2 b2 a3 b3" 109compares the `a' files to the `b' files; 110.It Li "apply \-0 who 1 2 3 4 5" 111runs 112.Xr who 1 1135 times; and 114.It Li "apply \'ln %1 /usr/joe\'" * 115links all files in the current directory to the directory 116.Pa /usr/joe . 117.El 118.Sh FILES 119.Bl -tag -width /bin/sh -compact 120.It Pa /bin/sh 121default shell 122.El 123.Sh AUTHORS 124.An Rob Pike 125.Sh BUGS 126Shell metacharacters in 127.Ar command 128may have bizarre effects; it is best to enclose complicated 129commands in single quotes 130.Pq '' . 131.Sh HISTORY 132The 133.Nm 134command appeared in 135.Bx 4.2 . 136