1.\" $NetBSD: shar.1,v 1.14 2023/01/25 19:52:14 rillig Exp $
2.\" [[[[ SLIGHTLY MODIFIED BY SHRUB :) ]]]]
3.\" Copyright (c) 1990, 1993
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30.\" @(#)shar.1 8.1 (Berkeley) 6/6/93
31.\"
32.Dd May 27, 2026
33.Dt SHAR 1
34.Os
35.Sh NAME
36.Nm shar
37.Nd create a shell archive of files
38.Sh SYNOPSIS
39.Nm
40.Ar
41.Sh DESCRIPTION
42.Nm
43writes an
44.Xr sh 1
45shell script to the standard output which will recreate the file
46hierarchy specified by the command line operands.
47Parent directories for file operands are created as needed.
48File and directory permissions are restored.
49.Pp
50.Nm
51is 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
84.Nm
85makes no provisions for special types of files.
86It is not intended for binary files containing NUL bytes.
87.Sh SECURITY CONSIDERATIONS
88It is easy to insert trojan horses into
89.Nm
90files.
91It is strongly recommended that all shell archive files be examined
92before running them through
93.Xr sh 1 .