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Top Forums UNIX for Dummies Questions & Answers prevent copy , forward of mail sent through unix Post 302551814 by Corona688 on Wednesday 31st of August 2011 05:43:09 PM

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08-31-2011

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Once it leaves the system you've got very little control of it.

You could encrypt it with PGP or some such, so only people with the right keys can understand it.

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LEARN ABOUT DEBIAN

gpg-zip

GPG-ZIP(1)						      General Commands Manual							GPG-ZIP(1)

NAME

       gpg-zip - encrypt or sign files into an archive

SYNOPSIS

       gpg-zip [OPTIONS] filename1 [filename2, ...]  directory1 [directory2, ...]

DESCRIPTION

       This manual page documents briefly the gpg-zip command.

       gpg-zip encrypts or signs files into an archive. It is an gpg-ized tar using the same format as PGP's PGP Zip.

OPTIONS

       -e, --encrypt
	      Encrypt data. This option may be combined with --symmetric (for output that may be decrypted via a secret key or a passphrase).

       -d, --decrypt
	      Decrypt data.

       -c, --symmetric
	      Encrypt  with  a	symmetric  cipher  using  a  passphrase.   The	default symmetric cipher used is CAST5, but may be chosen with the
	      --cipher-algo option to gpg(1).

       -s, --sign
	      Make a signature. See gpg(1).

       -r, --recipient USER
	      Encrypt for user id USER. See gpg(1).

       -u, --local-user USER
	      Use USER as the key to sign with. See gpg(1).

       --list-archive
	      List the contents of the specified archive.

       -o, --output FILE"
	      Write output to specified file FILE.

       --gpg GPG
	      Use the specified command instead of gpg.

       --gpg-args ARGS
	      Pass the specified options to gpg(1).

       --tar TAR
	      Use the specified command instead of tar.

       --tar-args ARGS
	      Pass the specified options to tar(1).

       -h, --help
	      Output a short usage information.

       --version
	      Output the program version.

DIAGNOSTICS

       The program returns 0 if everything was fine, 1 otherwise.

EXAMPLES

       Encrypt the contents of directory mydocs for user Bob to file test1:

	      gpg-zip --encrypt --output test1 --gpg-args  -r Bob"" mydocs

       List the contents of archive test1:

	      gpg-zip --list-archive test1

SEE ALSO

       gpg(1), tar(1)

AUTHOR

       Copyright (C) 2005 Free Software Foundation, Inc. Please report bugs to <bug-gnupg@gnu.org>.

       This manpage was written by Colin Tuckley <colin@tuckley.org> and Daniel Leidert <daniel.leidert@wgdd.de> for the Debian distribution  (but
       may be used by others).

								   November 2006							GPG-ZIP(1)