1.\" Copyright (c) 1980, 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.\" @(#)uuencode.1 8.1 (Berkeley) 6/6/93 33.\" $FreeBSD$ 34.\" 35.Dd June 6, 1993 36.Dt UUENCODE 1 37.Os BSD 4 38.Sh NAME 39.Nm uuencode , 40.Nm uudecode 41.Nd encode/decode a binary file 42.Sh SYNOPSIS 43.Nm 44.Op Ar file 45.Ar name 46.Nm uudecode 47.Op Fl cips 48.Op Ar 49.Sh DESCRIPTION 50.Nm Uuencode 51and 52.Nm uudecode 53are used to transmit binary files over transmission mediums 54that do not support other than simple 55.Tn ASCII 56data. 57.Pp 58.Nm Uuencode 59reads 60.Ar file 61(or by default the standard input) and writes an encoded version 62to the standard output. 63The encoding uses only printing 64.Tn ASCII 65characters and includes the 66mode of the file and the operand 67.Ar name 68for use by 69.Nm uudecode . 70.Pp 71.Nm Uudecode 72transforms 73.Em uuencoded 74files (or by default, the standard input) into the original form. 75The resulting file is named 76.Ar name 77and will have the mode of the original file except that setuid 78and execute bits are not retained. 79.Nm Uudecode 80ignores any leading and trailing lines. 81.Pp 82The following options are available for 83.Nm uudecode : 84.Bl -tag -width ident 85.It Fl c 86Decode more than one uuencode'd file from 87.Ar file 88if possible. 89.It Fl i 90Do not overwrite files. 91.It Fl p 92Decode 93.Ar file 94and write output to standard output. 95.It Fl s 96Do not strip output pathname to base filename. 97By default 98.Nm uudecode 99deletes any prefix ending with the last slash '/' for security 100purpose. 101.Sh EXAMPLES 102The following example packages up a source tree, compresses it, 103uuencodes it and mails it to a user on another system. 104When 105.Nm uudecode 106is run on the target system, the file ``src_tree.tar.Z'' will be 107created which may then be uncompressed and extracted into the original 108tree. 109.Pp 110.Bd -literal -offset indent -compact 111tar cf \- src_tree \&| compress \&| 112uuencode src_tree.tar.Z \&| mail sys1!sys2!user 113.Ed 114 115The following example unpack all uuencode'd 116files from your mailbox into your current working directory. 117.Pp 118.Bd -literal -offset indent -compact 119uudecode -c < $MAIL 120.Ed 121 122The following example extract a compress'ed tar 123archive from your mailbox 124.Pp 125.Bd -literal -offset indent -compact 126uudecode -p < $MAIL | zcat | tar xfv - 127.Ed 128.Sh SEE ALSO 129.Xr basename 1 , 130.Xr compress 1 , 131.Xr mail 1 , 132.Xr uucp 1 , 133.Xr uuencode 5 134.Sh BUGS 135The encoded form of the file is expanded by 35% (3 bytes become 4 plus 136control information). 137.Sh HISTORY 138The 139.Nm uudecode 140and 141.Nm 142utilities appeared in 143.Bx 4.0 . 144