login to remote machine and run script

Question

I have one central machine and multiple remote machines. Configured passwordless connections to remote machines from central machine.

I have to login from central vm to remote vm's and execute script in remote vm's

Below is the example, what i am trying

Central Machine:

#!/bin/sh
ssh root@remotemachine1
#run runscript.py in remotemachine1
ssh root@remotemachine2
#run runscript.py in remotemachine2

Remote Machine

python runscript.py

runscript.py

device = ["device1","device2","device3"]
for i, x enumerate(device):
    print "{}. {}".format(i+1, x)
select_device = raw_input("Choose Device: ")
print "You Selected Device {}".format(device[int(select_device) - 1])
do something
....
....
....
....

repeat = raw_input("Do you want to repeat? Y/N:")
do something
........
........
........

Someone help me how to login and run script in remote1 machine and exit from remote1 machine and run script in remote2 machine.

Do you expect the user to provide inputs when the script is being executed on the remote machine? — Vikram Patil, Jul 23 '18 at 05:54
For scripting use `fabric`. For setting up hardware use `ansible` or similar. — Reut Sharabani, Jul 23 '18 at 06:04
ansible can execute in remote machine, I want to run script from remote machine, only remote machine has access to devices and not from central vm.. — meteor23, Jul 23 '18 at 06:09
@triplee this is different question that duplicate question you have mentioned here. — Vikram Patil, Jul 23 '18 at 11:25
Please [edit] your question to clarify how it's different from the nominated duplicate. — tripleee, Jul 23 '18 at 13:28

Vikram Patil · Accepted Answer · 2018-07-23T06:01:20.970

2

You can run the following command

ssh  $DEST_USER@$DEST_MACHINE "python -u path_to_your_script.py"

If your script is not there, please make sure you upload script using scp first and then execute above command.

device = ["device1","device2","device3"]
for i, x in enumerate(device):**
    print ("{}. {}".format(i+1, x))
select_device = raw_input("Choose Device: ")
print "You Selected Device {}".format(device[int(select_device) - 1])

edited Jul 23 '18 at 06:01

answered Jul 23 '18 at 05:40

Vikram Patil

628
6
20

But, how user will pass inputs during execution – meteor23 Jul 23 '18 at 06:05
1

-u option will take care of that. Please try out. It seems to be working fine across ssh – Vikram Patil Jul 23 '18 at 06:09
I can run it from central machine on remote machine and also provided inputs during remote execution. – Vikram Patil Jul 23 '18 at 06:13

login to remote machine and run script

1 Answers1