In 0.26 there was graalvm command in bin directory.
$ graalvm --shell
GraalVM MultiLanguage Shell 0.23
Copyright (c) 2013-7, Oracle and/or its affiliates
JS version 0.9
R version 0.1
Ruby version 2.3.3
Usage:
Use Ctrl+L to switch language and Ctrl+D to exit.
Enter -usage to get a list of available commands.
Ruby> 1 + 2
3
In 0.28 graalvm command has gone. Instead of it, we can use polyglot command.
$ polyglot --shell
GraalVM MultiLanguage Shell 0.28.2
Copyright (c) 2013-7, Oracle and/or its affiliates
JavaScript version 0.9
Ruby version 2.3.3
Usage:
Use Ctrl+L to switch language and Ctrl+D to exit.
Enter -usage to get a list of available commands.
JavaScript>
It's ok, but I can't use R in this shell. Why?