1.\" Copyright (c) 1980, 1990 The Regents of the University of California. 2.\" All rights reserved. 3.\" 4.\" %sccs.include.redist.man% 5.\" 6.\" @(#)uuencode.1 6.9 (Berkeley) 04/23/91 7.\" 8.Dd 9.Dt UUENCODE 1 10.Os BSD 4 11.Sh NAME 12.Nm uuencode , 13.Nm uudecode 14.Nd encode/decode a binary file 15.Sh SYNOPSIS 16.Nm uuencode 17.Op Ar file 18.Ar name 19.Nm uudecode 20.Op Ar file ... 21.Sh DESCRIPTION 22.Nm Uuencode 23and 24.Nm uudecode 25are used to transmit binary files over transmission mediums 26that do not support other than simple 27.Tn ASCII 28data. 29.Pp 30.Nm Uuencode 31reads 32.Ar file 33(or by default the standard input) and writes an encoded version 34to the standard output. 35The encoding uses only printing 36.Tn ASCII 37characters and includes the 38mode of the file and the operand 39.Ar name 40for use by 41.Nm uudecode . 42.Pp 43.Nm Uudecode 44transforms 45.Em uuencoded 46files (or by default, the standard input) into the original form. 47The resulting file is named 48.Ar name 49and will have the mode of the original file except that setuid 50and execute bits are not retained. 51.Nm Uudecode 52ignores any leading and trailing lines. 53.Sh EXAMPLES 54The following example packages up a source tree, compresses it, 55uuencodes it and mails it to a user on another system. 56When 57.Nm uudecode 58is run on the target system, the file ``src_tree.tar.Z'' will be 59created which may then be uncompressed and extracted into the original 60tree. 61.Pp 62.Bd -literal -offset indent -compact 63tar cf \- src_tree \&| compress \&| 64uuencode src_tree.tar.Z \&| mail sys1!sys2!user 65.Ed 66.Sh SEE ALSO 67.Xr compress 1 , 68.Xr mail 1 , 69.Xr uucp 1 , 70.Xr uuencode 5 , 71.Xr format 5 72.Sh BUGS 73The encoded form of the file is expanded by 35% (3 bytes become 4 plus 74control information). 75.Sh HISTORY 76The 77.Nm 78command appeared in 79.Bx 4.0 . 80