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Full Discussion: scp with sshpass
Top Forums Shell Programming and Scripting scp with sshpass Post 302856277 by mathbalaji on Monday 23rd of September 2013 02:17:54 PM
Old 09-23-2013
Quote:
Originally Posted by Corona688
...and it is visible to the entire system when you do so.

Why not just let ssh ask for its own password?
Sorry if this is a stupid question, I'm a novice at this, but how is that visible to the entire system? I'm getting the password one time during the execution of the script. Here's a bit from my script:

Code:
read -s -p "Enter user1's server password: " pwd
sshpass -p "$pwd" user1@server1 somecmd
sshpass -p "$pwd" user1@server2 somecmd

The reason why I'm asking the user to enter the password is because I have multiple lines where I have to login into different servers (with same user, ofcourse), so I don't want the user to enter the password for multiple times.

Do you think reading the password using the above way will still be visible to the entire system?
 

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scp(1)								   User Commands							    scp(1)

NAME
scp - secure copy (remote file copy program) SYNOPSIS
scp [-pqrvBC46] [-F ssh_config] [-S program] [-P port] [-c cipher] [-i identity_file] [-o ssh_option] [ [user@]host1:]file1 [...] [ [user@]host2:]file2 DESCRIPTION
The scp utility copies files between hosts on a network. It uses ssh(1) for data transfer, and uses the same authentication and provides the same security as ssh(1). Unlike rcp(1), scp will ask for passwords or passphrases if they are needed for authentication. Any file name may contain a host and user specification to indicate that the file is to be copied to/from that host. Copies between two remote hosts are permitted. OPTIONS
The following options are supported: -4 Forces scp to use IPv4 addresses only. -6 Forces scp to use IPv6 addresses only. -B Selects batch mode. (Prevents asking for passwords or passphrases.) -c cipher Selects the cipher to use for encrypting the data transfer. This option is directly passed to ssh(1). -C Compression enable. Passes the -C flag to ssh(1) to enable compression. -F ssh_config Specifies an alternative per-user configuration file for ssh(1.). -i identity_file Selects the file from which the identity (private key) for RSA authentication is read. This option is directly passed to ssh(1). -o ssh_option The given option is directly passed to ssh(1). -p Preserves modification times, access times, and modes from the original file. -P port Specifies the port to connect to on the remote host. Notice that this option is written with a capital `P', because -p is already reserved for preserving the times and modes of the file in rcp(1). -q Disables the progress meter. -r Recursively copies entire directories. -S program Specifies the name of the program to use for the encrypted connection. The program must understand ssh(1) options. -v Verbose mode. Causes scp and ssh(1) to print debugging messages about their progress. This is helpful in debugging connection, authentication, and configuration problems. OPERANDS
The following operands are supported: host1, host2,...The name(s) of the host from or to which the file is to be copied. file1, file2,...The file(s) to be copied. EXIT STATUS
The following exit values are returned: 0 Successful completion. 1 An error occurred. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWsshu | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ SEE ALSO
rcp(1), ssh(1), ssh-add(1), ssh-agent(1), ssh-keygen(1), sshd(1M), attributes(5) To view license terms, attribution, and copyright for OpenSSH, the default path is /var/sadm/pkg/SUNWsshdr/install/copyright. If the Solaris operating environment has been installed anywhere other than the default, modify the given path to access the file at the installed location. AUTHORS
scp is based on the rcp(1) program in the BSD source code from the Regents of the University of California. The authors are Timo Rinne and Tatu Ylonen. SunOS 5.10 9 Jan 2004 scp(1)
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