1.\" Copyright (c) 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. Neither the name of the University nor the names of its contributors 13.\" may be used to endorse or promote products derived from this software 14.\" without specific prior written permission. 15.\" 16.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 17.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 20.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26.\" SUCH DAMAGE. 27.\" 28.Dd January 31, 2019 29.Dt SHAR 1 30.Os 31.Sh NAME 32.Nm shar 33.Nd create a shell archive of files 34.Sh SYNOPSIS 35.Nm 36.Ar 37.Sh DESCRIPTION 38The 39.Nm 40command writes a 41.Xr sh 1 42shell script to the standard output which will recreate the file 43hierarchy specified by the command line operands. 44Directories will be recreated and must be specified before the 45files they contain (the 46.Xr find 1 47utility does this correctly). 48.Pp 49The 50.Nm 51command is normally used for distributing files by 52.Xr ftp 1 53or 54.Xr mail 1 . 55.Sh EXAMPLES 56To create a shell archive of the program 57.Xr ls 1 58and mail it to Rick: 59.Bd -literal -offset indent 60cd ls 61shar `find . -print` \&| mail -s "ls source" rick 62.Ed 63.Pp 64To recreate the program directory: 65.Bd -literal -offset indent 66mkdir ls 67cd ls 68\&... 69<delete header lines and examine mailed archive> 70\&... 71sh archive 72.Ed 73.Sh SEE ALSO 74.Xr compress 1 , 75.Xr mail 1 , 76.Xr tar 1 , 77.Xr uuencode 1 78.Sh HISTORY 79The 80.Nm 81command appeared in 82.Bx 4.4 . 83.Sh BUGS 84The 85.Nm 86command makes no provisions for special types of files or files containing 87magic characters. 88The 89.Nm 90command cannot handle files without a newline ('\\n') 91as the last character. 92.Pp 93It is easy to insert trojan horses into 94.Nm 95files. 96It is strongly recommended that all shell archive files be examined 97before running them through 98.Xr sh 1 . 99Archives produced using this implementation of 100.Nm 101may be easily examined with the command: 102.Bd -literal -offset indent 103egrep -av '^[X#]' shar.file 104.Ed 105