Execute internal script as different user

aubtc · #1 (**permalink**) 09-10-2007

I have a script that I must run as user X and need to send the results to a different server as user Y (sftp). User Y has been set up to not require password authentication between the 2 servers. I would prefer to keep these in a single script, as our operations might have to run it from time to time and I would prefer to keep things simple.

Another thought was to have 2 scripts that poled a status file to see "whose" turn it was to execute.

Any suggestions?

Thanks

porter · #2 (**permalink**) 09-10-2007

What is supposed to be executed by Y?

as user X

Code:

....

sftp ... Y@server <<EOF
.....
EOF

.....

aubtc · #3 (**permalink**) 09-11-2007

Yes, sftp needs to be run as user Y. The main script is a start/stop process for a web based application (separate app and web servers). All the processes must be started or stopped as user X, but user Y must be used to send results to the other server detailing basically whose turn it is to run.

[app server script]
start environment (x)
start rmi (x)
sftp web (y)
wait till app continue
start scheduler (x)

[web server script]
wait till web
start web (x)
sftp app continue (y)

kittielemieux · #4 (**permalink**) 09-11-2007

since everything else is run under user x, maybe you can just enclose the sftp command for user y in an su -c command

aubtc · #5 (**permalink**) 09-11-2007

I am also trying to keep from storing the password of the User Y on the system as well and user X is not root.

porter · #6 (**permalink**) 09-11-2007

Try this

script starts as X

script then does SSH to other system as Y using private key as follows...

Code:

echo this is running as X here
ssh -i identity Y@other <<EOF
echo this script part will run as Y on the other machine
EOF
echo this is back running as X here

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