check for `bin` dir inside SDKMAN_DIR to check previous installation #282
check for `bin` dir inside SDKMAN_DIR to check previous installation #282

If you have existing dotfiles setup, `~/.sdkman/etc/config` is already present (as a symlink).
gvmtool/gvm-cli,shanman190/sdkman-cli,busches/gvm-cli,sdkman/sdkman-cli,jbovet/gvm