I will try to discuss one at a time. Forgetting about sftp for a second, in order to achieve passwordless authentication ( in your terms non-interactive authentication) you need to set up a key that does not have a password. See this link for tips on how to set that up.
However, please see this warning and tips on how to set it up to be secure. (Sorry for all the links)
Once you have verified passwordless authetication is working, you can now attempt to automate sftp. What the link in my previous post said is:
Quote:
However, it's nice to keep everything together in one file using "here documents." What you can do, is this:
Most modern Unix flavors provide a way to access the current process' standard streams via the filesystem. Linux has /dev/stdin; under Solaris, it would be /dev/fd/0 - yours may be different.
You would not be putting a password file after sftp -b, you would be putting your standard-in device or a file with all the ftp commands. So on solaris, your script might look like this:
Last edited by dangral; 04-01-2005 at 01:00 PM..
Reason: added security warning
Hi All:cool:,
i tried to automate SFTP process after passwordless authendication.
Stil i am getting error...
Can anyone help....
-------------------
sample code below
-------------------
sftp -v $mdskk@100.4.4.75 << EOF
cd /data
mget *.tar.gz
bye
EOF... (2 Replies)
Hi,
Could you please help to solve the below issue...
my requirement is automate the SFTP between UNIX and Windows server.
I want to get and put some files to UNIX AIX machine(SFTP client) to Windows server(SFTP server).
For that, i have generated key pair (private/public) in my AIX machine .... (6 Replies)
Hi,
I read a couple of forum entries about scripting sftp using the '-b' option, but in my case it still prompts for the password. Does anyone have a sample script for an sftp block to 'get' files from the remote server without prompting for a password?
Both the remote and the local servers... (1 Reply)
How to automate sftp with out using expect script?
My batch file has the password but it is not taking. Please see below.
I want to use this sftp connection in a loop for pushing new files in a directory one at a time. Hence I can not use an expect script.
bash-2.05$... (5 Replies)
Hi all,
I have a task on my plate which is of high priority.
I need an automated email alert that checks FTP notices subdirectory on a daily basis and forwards any word files to a group of people. This word files gets created whenever there is an issue with FTP connectivity.
Please help...... (1 Reply)
Hi,
I'm using Sun Solaris OS. I have configured sftp and can exchange files in command prompt. Now when I try to automate it in ksh script, facing issue as I want to capture the status if the transfer was successful or not. So tried sftp -b and sftp -B option but its not working.
The... (3 Replies)
I am trying to use a for loop in my expect cmdFile that I am calling.
I want to be able to call either one file name or a series of file names in the working directory (that I won't know the names before hand) and then pass the names to the sftp program.
Something like for i in (ls *txt)
do (0 Replies)
Greetings, guys. I'm not much of a programmer forgive me for being a noob, because of someone leaving, I was put in an IT spot where I have to figure out a few things. Being new to Linux and programming has been a challenge.
My boss has asked me to create an automated script to connect to a 3rd... (7 Replies)
Hi, guys, I am trying to automate a sftp process using "expect" method (since the key authentication method is disabled in my company network, there is no helping it).
In order to try, I type in the command manually:
sftp @ > << EOF
>cd
>ls -l
>EOF
>Connecting to
@servername password:
... (3 Replies)
hi,
I am trying to automate a file download process using sftp. There is some logic to download files.
1) I need to login to destination server and then go to folder.
2) find list of files and count
3) using list of files I need to eliminate three selective files and download remaining... (1 Reply)
Discussion started by: getmilo
1 Replies
LEARN ABOUT REDHAT
sftp
SFTP(1) BSD General Commands Manual SFTP(1)NAME
sftp -- Secure file transfer program
SYNOPSIS
sftp [-vC1] [-b batchfile] [-o ssh_option] [-s subsystem | sftp_server] [-B buffer_size] [-F ssh_config] [-P sftp_server path]
[-R num_requests] [-S program] host
sftp [[user@]host[:file [file]]]
sftp [[user@]host[:dir[/]]]
DESCRIPTION
sftp is an interactive file transfer program, similar to ftp(1), which performs all operations over an encrypted ssh(1) transport. It may
also use many features of ssh, such as public key authentication and compression. sftp connects and logs into the specified host, then
enters an interactive command mode.
The second usage format will retrieve files automatically if a non-interactive authentication method is used; otherwise it will do so after
successful interactive authentication.
The last usage format allows the sftp client to start in a remote directory.
The options are as follows:
-b batchfile
Batch mode reads a series of commands from an input batchfile instead of stdin. Since it lacks user interaction it should be used in
conjunction with non-interactive authentication. sftp will abort if any of the following commands fail: get, put, rename, ln, rm,
mkdir, chdir, lchdir and lmkdir.
-o ssh_option
Can be used to pass options to ssh in the format used in ssh_config(5). This is useful for specifying options for which there is no
separate sftp command-line flag. For example, to specify an alternate port use: sftp -oPort=24.
-s subsystem | sftp_server
Specifies the SSH2 subsystem or the path for an sftp server on the remote host. A path is useful for using sftp over protocol ver-
sion 1, or when the remote sshd does not have an sftp subsystem configured.
-v Raise logging level. This option is also passed to ssh.
-B buffer_size
Specify the size of the buffer that sftp uses when transferring files. Larger buffers require fewer round trips at the cost of
higher memory consumption. The default is 32768 bytes.
-C Enables compression (via ssh's -C flag).
-F ssh_config
Specifies an alternative per-user configuration file for ssh. This option is directly passed to ssh(1).
-P sftp_server path
Connect directly to a local sftp-server (rather than via ssh) This option may be useful in debugging the client and server.
-R num_requests
Specify how many requests may be outstanding at any one time. Increasing this may slightly improve file transfer speed but will
increase memory usage. The default is 16 outstanding requests.
-S program
Name of the program to use for the encrypted connection. The program must understand ssh(1) options.
-1 Specify the use of protocol version 1.
INTERACTIVE COMMANDS
Once in interactive mode, sftp understands a set of commands similar to those of ftp(1). Commands are case insensitive and pathnames may be
enclosed in quotes if they contain spaces.
bye Quit sftp.
cd path
Change remote directory to path.
lcd path
Change local directory to path.
chgrp grp path
Change group of file path to grp. grp must be a numeric GID.
chmod mode path
Change permissions of file path to mode.
chown own path
Change owner of file path to own. own must be a numeric UID.
exit Quit sftp.
get [flags] remote-path [local-path]
Retrieve the remote-path and store it on the local machine. If the local path name is not specified, it is given the same name it
has on the remote machine. If the -P flag is specified, then the file's full permission and access time are copied too.
help Display help text.
lls [ls-options [path]]
Display local directory listing of either path or current directory if path is not specified.
lmkdir path
Create local directory specified by path.
ln oldpath newpath
Create a symbolic link from oldpath to newpath.
lpwd Print local working directory.
ls [flags] [path]
Display remote directory listing of either path or current directory if path is not specified. If the -l flag is specified, then dis-
play additional details including permissions and ownership information.
lumask umask
Set local umask to umask.
mkdir path
Create remote directory specified by path.
put [flags] local-path [local-path]
Upload local-path and store it on the remote machine. If the remote path name is not specified, it is given the same name it has on
the local machine. If the -P flag is specified, then the file's full permission and access time are copied too.
pwd Display remote working directory.
quit Quit sftp.
rename oldpath newpath
Rename remote file from oldpath to newpath.
rmdir path
Remove remote directory specified by path.
rm path
Delete remote file specified by path.
symlink oldpath newpath
Create a symbolic link from oldpath to newpath.
! command
Execute command in local shell.
! Escape to local shell.
? Synonym for help.
AUTHORS
Damien Miller <djm@mindrot.org>
SEE ALSO scp(1), ssh(1), ssh-add(1), ssh-keygen(1), ssh_config(5), sftp-server(8), sshd(8)
T. Ylonen and S. Lehtinen, SSH File Transfer Protocol, draft-ietf-secsh-filexfer-00.txt, January 2001, work in progress material.
BSD February 4, 2001 BSD