As I could not see how this belongs to ispconfig I moved it to a more general area. Which library did you "install" and how - do you have a link to the developers page of the lib? What do you mean by making it available for shell users? As Javascript is something client based on most commonly used in webpages / web applications I'd assume that you want to make this lib accessible through your webserver?!
Ben, I installed nodejs as root user. Now I logged in as a shell user (created with ispconfig) and tried to use node but it sais:
might be that node is not in your path so provide the absolute location or the binary. if you don't know where it is located try to search it with locate or find.
You mean jailkit shell users? If so, then you need to modify jailkit options to add libraries / executeables to be available for the jailed users. Like here.