I would like to scp multiple files to a remote server that requires a password for the process to be completed.
I have 30 folders (x_1, x_2 ... x_30), each containing 25 files. What I want to do is scp 1 out of the 25 files (file called bvals) for all my folders to a remote server and place each file to its respective folder (x_1, x_2 ... x_30 in the remote server).
I wrote this script:
Code:
for n in x_1 x_2 x_3 x_4 x_5 x_6 x_7 x_8 x_9 x_10 x_11 x_12 x_13 x_14 x_15 x_16 x_17 x_18 x_19 x_20 x_21 x_22 x_23 x_24 x_25 x_26 x_27 x_28 x_29 x_30
do
scp $HOME/data/${n}/bvals remote_server@remote.edu:/me/my_data/${n}
done
The problem with this script (of course) is that every time n takes a new argument (x_1 etc) I am asked to insert my password.
Is there any way to write this script in a way such that I am prompted to write my password only once?
Thank you!
Moderator's Comments:
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Last edited by Don Cragun; 02-18-2017 at 09:37 PM..
Reason: Add CODE and ICODE tags.
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Discussion started by: Soham
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LEARN ABOUT OPENSOLARIS
scp
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 con-
nection, 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), ssh_config(4), attributes(5)NOTES
Generally, use of scp with password or keyboard-interactive authentication method and two remote hosts does not work. It does work with
either the pubkey, hostbased or gssapi-keyex authentication method. For the pubkey authentication method, either private keys not pro-
tected by a passphrase, or an explicit ssh agent forwarding have to be used. The gssapi-keyex authentication method works with the ker-
beros_v5 GSS-API mechanism, but only if the GSSAPIDelegateCredentials option is enabled.
SunOS 5.11 22 Jun 2007 scp(1)
02-18-2017
