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SFTP - passing a password from within a script

Posted on 2002-07-01
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Last Modified: 2010-08-05
I just about have everything working with SFTP.  I tested SFTP using a batch file to pass it the commands and it works great.  The problem I have though is it prompts me to put a password before it starts reading the file and processing the commands.

Here is the syntax I use from the command line:

sftp -b /path/genPluginBatch webuser@webhost

I tried putting the password as the first line in the batch file, genPluginBatch, but it sees this as a bad command.  Any idea how I would pass the password from within a script?

Just so you know I also tried the following from within the script:

sftp wsadmin@uscscdev7 webuser@webhost <<EOF
<password>
cd /opt/WebSphere/AppServer/config
put plugin-cfg.xml
bye
EOF


Thanks,

Lisa
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Question by:lphillips120898
7 Comments
 
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Expert Comment

by:MikeOM_DBA
ID: 7123310
You can try the -n option:

sftp -n wsadmin@uscscdev7 webuser@webhost <<EOF
...etc...
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ahoffmann earned 600 total points
ID: 7124044
sh does not allow to read password from STDIN (batch file, here document, or whatever) for obvious reason.
You need to setup sh with a RSA or DSA key which has a blank password
AFAIK sftp has no -i option to specify the key-file, so you're forced to use the default ones, ~/.ssh/identity for example.
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by:ahoffmann
ID: 7124046
oops, typo:
please substitute all words sh by ssh
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LVL 9

Expert Comment

by:PeterMac
ID: 7126856
Havn't tried with SFTP, but following works with most FTP systems. Needs -n on command line to allow manual login. Insert at start of batch file :-

user "USERNAME"
"PASSWD"

Alternatively should be possible to setup SFTP to run with "anonymous" access permitted. Will not then require entry of username, password at all.
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by:chris_calabrese
ID: 7127074
SFTP is a very different beast from FTP.  Ahoffman's comments are right-on.
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Expert Comment

by:SoHo
ID: 7319941
why don't you use ssh keys.
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Expert Comment

by:SoHo
ID: 7319945
ahoffman already gave that answer, duh.
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