a slightly tricky sudo scenario 1

[keak]

I am writing a script that

1. ssh to a host
2. issue a sudo command in that hose to change from user1 to user2 (so sudo -H -u user2 bash)
3. execute a script as user 2 in bash

I have tried

scp script1.sh $host:~/
ssh $host <<END_SCRIPT
sudo -H -u user2 bash
./script1.sh
exit
END_SCRIPT

So in summary, I need this script 1 executed as user2.
I am trying to get this done in user2 in bash, instead of soemthing like

sudo -H -u user2 ./script1

is there any way I can accomplish this?

 

[Annihilannic]

Which part exactly isn't working?

Annihilannic.

 

[columb]

Personnally I would code it as

scp script1.sh $host:~/
ssh $host "sudo -H -u user2 script1.sh"

and then the sudoers entry would be

user1 = myhost (user2) = /my/path/to/script1

Columb Healy

 

[keak]

The script1.sh was giving me a write permission error when running the command

sudo -H -u user2 script1.sh

but when I do

sudo -H -u user1 bash
./script1.sh

I don't have problems appending data to the file (the file is the SSH authorized_keys file). I just wanted to automate the process of adding a new key/pub_key pair between my machines.

 

[Annihilannic]

If I were you I would try and figure out why, because that doesn't make sense. Have you tried:

[tt]ssh $host "sudo -H -u user2 bash ./script1.sh"[/tt]


Annihilannic.

 

[keak]

Thanks for the reply.
Yeah, I figured it was something wrong with perhaps the way i am setting up my /etc/sudoers file.

However, I was wondering, if in general, we can sudo to another user's bash, and execute mutiple commands from there onwards (all from a shell script).

So basically something like

scp script1.sh $host:~/
ssh $host <<END_SCRIPT
sudo -H -u user2 bash
./script1.sh
./script2.sh
./script3.sh
.....
exit
END_SCRIPT

Or do we have to append a sudo -H -u user2 ./script*.sh
before every command?

 

[PHV]

And what about this ?
ssh $host "sudo -H -u user2 bash ./script1.sh;./script2.sh;./script3.sh"

Hope This Helps, PH.
Want to get great answers to your Tek-Tips questions? Have a look at FAQ219-2884 or FAQ181-2886

 

[PHV]

OOps, sorry, I meant this
ssh $host "sudo -H -u user2 bash -c './script1.sh;./script2.sh;./script3.sh'"

Hope This Helps, PH.
Want to get great answers to your Tek-Tips questions? Have a look at FAQ219-2884 or FAQ181-2886

 

[keak]

Thanks for that reply PHV !!
That was the type of shell command I was thinking about.