Not able to switch to super user in terminal From robot framework

Question

Open Connection    192.***.***.**
Login    ****    *******
Start Command    su hdfs
Execute Command    cd /home/rajesh/hive-latest/
${STDOUT1}    Execute Command    ls -lrt
Log    ${STDOUT1}
Close Connection

*Here i am able to login. after login, not able to switch to super user. without switching to super user, its executing ls -lrt. Please help me with this if anyone knows

score 0 · Answer 1 · answered May 27 '22 at 05:42

0

This is not how the ssh library works. Have a look at the documentation

The command is always executed in a new shell. Thus possible changes to the environment (e.g. changing working directory) are not visible to the later keywords

You can work around this by executing the command as different user, or if possible you can open another connection and login as desired user.

su - <username> -c "<commands>"

answered May 27 '22 at 05:42

Jiri Janous

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Hi Jiri. I am login as root user. then i am trying to switch to another user by using "su hdfs". this user not required password. But i am unable to switch to this "hdfs" user – Automation using Selenium and May 27 '22 at 07:36
your command should look like this "Execute Command su hdfs -c 'ls -lrt /home/sunil/hive-latest/'" – Jiri Janous May 27 '22 at 08:04
Hi Jiri. Its working fine now. Thank you so much for your help. – Automation using Selenium and May 27 '22 at 08:35
glad i could help, you can mark the answer if it was a solution to your problem. – Jiri Janous May 27 '22 at 08:38
After getting list. its again pointing to root only if go with pwd. I am using this below command to move to hive-latest directory. Its not working – Automation using Selenium and May 27 '22 at 08:51
I am using this command su hdfs -c 'cd /home/sunil/hive-latest/' – Automation using Selenium and May 27 '22 at 08:51
that is how the library works, as i pointed out from the documentation. Each command is executed in new shell, you cannot change working directory. – Jiri Janous May 27 '22 at 09:26
Hi Jiri. Thank you so much for info. Is there any other library that supports changing working directory in robot framework? – Automation using Selenium and May 30 '22 at 11:36
you can use this one in the way i have described it. Or you can try to describe in detail what exactly it is that you need. – Jiri Janous May 30 '22 at 12:14
Hi Jiri. I am trying to execute some spark job in the place of ls-lrt in the below command. su hdfs -c 'ls -lrt /home/sunil/hive-latest/'" ....its working fine for ls -lrt .. not working for my spark job. Please help me if you can – Automation using Selenium and Jul 11 '22 at 14:13

Not able to switch to super user in terminal From robot framework

1 Answers1