RVM and Sdkman are very useful tools to manage and work with multiple Ruby/Groovy environments. After installing both of them want to add some lines into the dotfile(.bashrc/.zshrc) and make the lines at the end of this file, which is impossible, however.
After some testing, here is what I did to make both of them work.
# 1. Note that make RVM lines at the end of the file. If not, RVM doesn't work# properly(getting the "Warning! PATH is not properly set up" warning). # However, Sdkman can work if you put the Sdkman lines before the RVM lines.## 2. Remember to check the other dotfiles such as ".bash_profile" and# ".profile"files, to make sure there is not RVM/Sdkman lines in them. If it# happens, you configuration in the ".bashrc" file may not work properly# because of the content there.#THIS MUST BE AT THE END OF THE FILE FOR SDKMAN TO WORK!!!export SDKMAN_DIR="/home/gang/.sdkman"[[ -s "/home/gang/.sdkman/bin/sdkman-init.sh"]]&&source"/home/gang/.sdkman/bin/sdkman-init.sh"# Add RVMPATH=$PATH:$HOME/.rvm/bin # Add RVM to PATH for scripting[[ -s "$HOME/.rvm/scripts/rvm"]]&&source"$HOME/.rvm/scripts/rvm"