Good day,
Thank you for reading my post. I appreciate your feedback. I just started with HA and have minimal knowledge of Linux. OpenAI helps a lot, but cannot solve this issue. So, show me that you know more than OpenAI 
The below is a test and doesn’t entail my goal. My goal is to retrieve the temperature from an external Raspberry Pi4 without using a password. I am able to connect to the Rpi4 in the CLI using a fingerprint.
What works is:
CONFIGURATION.YAML
- sensor:
name: nc_temp
command: "echo "test"
scan_interval: 5
What doesn’t work:
CONFIGURATION.YAML
- sensor:
name: nc_temp
command: "'bash -s' < /home/ramin/temp/temp_nextcloud.sh"
scan_interval: 5
HOME-ASSISTANT.LOG
2023-07-17 12:47:08.232 ERROR (SyncWorker_4) [homeassistant.components.command_line.utils] Command failed (with return code 1): 'bash -s' < /home/ramin/temp/temp_nextcloud.sh
temp_nextcloud.sh entails:
config # cat /home/ramin/temp/temp_nextcloud.sh
echo 'Testing'
config #
file_rights:
config # ls -laF /home/ramin
total 24
drwxr-sr-x 3 ramin ramin 4096 Jul 17 12:04 ./
drwxr-xr-x 1 root root 4096 Jul 15 13:17 ../
-rw-r--r-- 1 root ramin 13 Jul 15 13:17 .profile
drwxrwxrwx 2 ramin ramin 4096 Jul 17 12:05 temp/
-rwxr-xr-x 1 root ramin 28 Jul 17 11:42 temp_nextcloud.copy.sh*
-rwxr-xr-x 1 ramin ramin 17 Jul 17 11:43 temp_nextcloud.sh*
config # ls -laF /home/ramin/temp
total 12
drwxrwxrwx 2 ramin ramin 4096 Jul 17 12:05 ./
drwxr-sr-x 3 ramin ramin 4096 Jul 17 12:04 ../
-rwxrwxrwx 1 ramin ramin 15 Jul 17 12:55 temp_nextcloud.sh*
config #
I know the rights are overdone, but to test I wanted to be sure file-rights are no issue.
Why the error and isn’t the command_line executed?