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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 SUSE

gpg-zip

GPG-ZIP(1)							 GNU Privacy Guard							GPG-ZIP(1)

NAME

       gpg-zip - Encrypt or sign files into an archive

SYNOPSIS

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

DESCRIPTION

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

OPTIONS

       gpg-zip understands these options:

       --encrypt

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

       --decrypt

       -d     Decrypt data.

       --symmetric

       -c     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.

       --sign

       -s     Make a signature.  See gpg.

       --recipient user

       -r user
	      Encrypt for user id user. See gpg.

       --local-user user

       -u user
	      Use user as the key to sign with.  See gpg.

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

       --output file

       -o file
	      Write output to specified file file.

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

       --gpg-args args
	      Pass the specified options to gpg.

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

       --tar-args args
	      Pass the specified options to tar.

       --version
	      Print version of the program and exit.

       --help Display a brief help page and exit.

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

DIAGNOSTICS

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

SEE ALSO

       gpg(1), tar(1),

       The full documentation for this tool is maintained as a Texinfo manual.	If GnuPG and the info program are properly installed at your site,
       the command

	 info gnupg

       should give you access to the complete manual including a menu structure and an index.

GnuPG 2.0.15							    2010-07-05								GPG-ZIP(1)