can we install RTC/EWM in silent mode or as silent installation and how?
One answer
We have something that is called "documentation". You can find the entry point to it in the "Library" menu on top of this page. In this documentation you can use search e.g. for "Silent Install". You can then find several links like
https://www.ibm.com/docs/en/SSYMRC_7.0.3/com.ibm.jazz.install.doc/topics/t_command-line_installation.html
The answer is, yes, you can. There is also an example for Linux in the deployment wiki: https://jazz.net/wiki/bin/view/Deployment/SilentInstallOnLinux