Need to change the directory inside the shell script

Question

I need to change the directory inside the shellscript.i have tried below

#!/bin/bash
sudo -u rv bash
cd /opt/test
source /opt/rv/van.env
./rv.sh |grep "STATUS" 

When I tried it didn't cd to that path and not executed th rv.sh.guide me with some ideas.

Fyi rv.sh path /opt/test/

Answer 1

The following line:

sudo -u rv bash

Will launch a bash console as the user rv and then your entire script will halt until the program (i.e.: bash) ends.

Only after bash ends, the program will continue execution and run the last two lines.

The last two lines are running as part of the first script, therefor, they run as your user.

Answer 2

It seems like you're expecting sudo to execute the rest of the script in the users context but it is not interactive. It will invoke a separate bash instance and, once exited, resume the rest of the script afterwards.

You'll have to put together a separate script and run that with sudo. Running sudo inside of scripts is rarely a good idea. S.a. https://askubuntu.com/questions/425754/how-do-i-run-a-sudo-command-inside-a-script