09-20-2018
I don't think ps would see anything more than the variable name, but I could be wrong. Its hard to tell without seeing the whole code.
I don't know how much more coding you wish to do with the script, but one option might be to use
gpg to encrypt a file with the password or passwords in it. Then you could just use the password to decrypt the file in the script and pass the real password or passwords to a variable in that script when decrypted.
Ansible may be a good tool for that as well. Again, hard to say without looking at the code.
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LEARN ABOUT LINUX
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)