I installed elasticsearch in ubuntu
elk@elk-virtual-machine:~/Downloads/elasticsearch-6.3.2/bin$ ls
elasticsearch elasticsearch-keystore.bat elasticsearch-setup-passwords.bat jdk-10.0.2_linux-x64_bin.tar.gz
elasticsearch.bat elasticsearch-migrate elasticsearch-sql-cli x-pack
elasticsearch-certgen elasticsearch-migrate.bat elasticsearch-sql-cli-6.3.2.jar x-pack-env
elasticsearch-certgen.bat elasticsearch-plugin elasticsearch-sql-cli.bat x-pack-env.bat
elasticsearch-certutil elasticsearch-plugin.bat elasticsearch-syskeygen x-pack-security-env
elasticsearch-certutil.bat elasticsearch-saml-metadata elasticsearch-syskeygen.bat x-pack-security-env.bat
elasticsearch-croneval elasticsearch-saml-metadata.bat elasticsearch-translog x-pack-watcher-env
elasticsearch-croneval.bat elasticsearch-service.bat elasticsearch-translog.bat x-pack-watcher-env.bat
elasticsearch-env elasticsearch-service-mgr.exe elasticsearch-users
elasticsearch-env.bat elasticsearch-service-x64.exe elasticsearch-users.bat
elasticsearch-keystore elasticsearch-setup-passwords jdk-10.0.2
as i cannot start es in root i switched to user ubuntu
elk@elk-virtual-machine:~/Downloads/elasticsearch-6.3.2/bin$ ./elasticsearch
but then i get Exception in thread "main" java.nio.file.AccessDeniedException: /home/elk/Downloads/elasticsearch-6.3.2/config/jvm.options
any help appreciated