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Top Forums Shell Programming and Scripting How to pass the password as input parameter to scp Post 302606820 by Chubler_XL on Tuesday 13th of March 2012 12:22:58 AM
Old 03-13-2012
scp and rsync are designed to detect that their password input isn't comming from a terminal to stop just this sort of thing.

I would say the developers of these products thought it was a bad thing for account passwords being visible on ps listings or in human readable files.

If you really insist on doing this sort of thing the expect tool is probably the way you will need to go, or just setup public/private key authentication between the accounts (it's not that hard and will be much more portable/safe).
 

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lppasswd(1)							    Apple Inc.							       lppasswd(1)

NAME
lppasswd - add, change, or delete digest passwords. SYNOPSIS
lppasswd [ username ] lppasswd -a [ -g groupname ] username lppasswd -x username DESCRIPTION
lppasswd adds, changes, or deletes passwords in the CUPS digest password file, passwd.md5. When run by a normal user, lppasswd will prompt for the old and new passwords. When run by the super-user, lppasswd can add new accounts (-a username), change existing accounts (user- name), or delete accounts (-x username) in the digest password file. Digest usernames do not have to match local UNIX usernames. OPTIONS
lppasswd supports the following options: -g groupname Specifies a group other than the default system group. SECURITY ISSUES
By default, the lppasswd program is not installed to allow ordinary users to change their passwords. To enable this, the lppasswd command must be made setuid to root with the command: chmod u+s lppasswd While every attempt has been made to make lppasswd secure against exploits that could grant super-user privileges to unprivileged users, paranoid system administrators may wish to use Basic authentication with accounts managed by PAM instead. SEE ALSO
lp(1), lpr(1), http://localhost:631/help COPYRIGHT
Copyright 2007-2011 by Apple Inc. 22 February 2008 CUPS lppasswd(1)
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