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.Sh DESCRIPTION 46.Nm Apply 47runs the named 48.Ar command 49on each 50argument 51.Ar argument 52in turn. 53.Pp 54Character sequences of the form 55.Dq Li \&%d 56in 57.Ar command , 58where 59.Dq Li d 60is a digit from 1 to 9, are replaced by the 61.Li d Ns \'th 62following unused 63.Ar argument . 64In this case, the largest digit number of arguments are discarded for 65each execution of 66.Ar command . 67.Pp 68The options are as follows: 69.Bl -tag -width "-ac" 70.It Fl Ns Ar # 71Normally arguments are taken singly; the optional number 72.Fl # 73specifies the number of arguments to be passed to 74.Ar command . 75If the number is zero, 76.Ar command 77is run, without arguments, once for each 78.Ar argument . 79.Pp 80If any sequences of 81.Dq Li \&%d 82occur in command, the 83.Fl # 84option is ignored. 85.It Fl a Ns Ar c 86The use of the character 87.Dq Li % 88as a magic character may be changed with the 89.Fl a 90option. 91.El 92.Sh ENVIRONMENT 93The following environment variable affects the execution of 94.Nm apply : 95.Bl -tag -width SHELL 96.It Ev SHELL 97Pathname of shell to use. 98If this variable is not defined, the Bourne shell is used. 99.El 100.Sh EXAMPLES 101.Bl -tag -width apply -compact 102.It Li "apply echo a*" 103is similar to ls(1); 104.It Li "apply \-2 cmp a1 b1 a2 b2 a3 b3" 105compares the `a' files to the `b' files; 106.It Li "apply \-0 who 1 2 3 4 5" 107runs who(1) 5 times; and 108.It Li "apply \'ln %1 /usr/joe\'" * 109links all files in the current directory to the directory 110.Pa /usr/joe . 111.El 112.Sh Files 113.Bl -tag -width /bin/sh -compact 114.It Pa /bin/sh 115Default shell 116.El 117.Sh AUTHORS 118.An Rob Pike 119.Sh BUGS 120Shell metacharacters in 121.Ar command 122may have bizarre effects; it is best to enclose complicated 123commands in single quotes 124.Pq Sq . 125.Sh HISTORY 126The 127.Nm 128command appeared in 129.Bx 4.2 . 130