\nAfter logging in as user pi, using this command give you root user privileges:\n<\/p>\n
\r\nsudo su<\/code><\/pre>\n\nExiting root user mode
\n<\/h4>\n
\nUse the exit command:\n<\/p>\n
\r\nexit<\/code><\/pre>\n\nor su username:\n<\/p>\n
\r\nsu pi<\/code><\/pre>\n\nsudo In GUI
\n<\/h4>\n
\nIf you are developing programs which use the IO pin from the GUI you do not have to use "sudo startx" to launch the GUI. Using "sudo .\/myprogram.a" in a LX Terminal window works fine.\n<\/p>\n
\nRunning a command as another user
\n<\/h4>\n
\nIf you are running as the root user (e.g. say within an app called with sudo because you are using the IO pins) you may want to make command lines calls as the standard pi user. You can change to a different user using su – USERNAME -c before the command and surrounding it with quotes.\n<\/p>\n
\r\n\r\nsu - pi -c \\"fetchmail > \/dev\/null\\"\r\n<\/code><\/pre>\n\nEnabling The Root Account
\n<\/h4>\n
\nBy default the root account is disabled, but you can enable it by using this command and giving it a password\n<\/p>\n
\r\n\r\nsudo passwd root\r\n<\/code><\/pre>\n\nNow you can log into your pi as the root user. Whilst this opens up security concerns its sometimes very useful, for instance when developing with netbeans and remotely running applicaiotn that access the IO pins.\n<\/p>\n
\nIf it doesn't work check the ssh config\n<\/p>\n
\r\n\r\nsudo nano \/etc\/ssh\/sshd_config\r\n<\/code><\/pre>\n\nSearch for PermitRootLogin and change it to yes\n<\/p>\n
\nYou can undo logging in as root again using this command\n<\/p>\n
\r\n\r\nsudo passwd -l root\r\n<\/code><\/pre>\n\n \n<\/p>\n
\n <\/p>\n","protected":false},"excerpt":{"rendered":"
After logging in as user pi, using this command give you root user privileges: sudo su Exiting root user mode Use the exit command: exit or su username: su pi sudo In GUI If you are developing programs which use the IO pin from the GUI you do not have to use "sudo startx" to […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"class_list":["post-570","post","type-post","status-publish","format-standard","hentry","category-command-line"],"_links":{"self":[{"href":"https:\/\/raspberry-projects.com\/pi\/wp-json\/wp\/v2\/posts\/570","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/raspberry-projects.com\/pi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/raspberry-projects.com\/pi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/raspberry-projects.com\/pi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/raspberry-projects.com\/pi\/wp-json\/wp\/v2\/comments?post=570"}],"version-history":[{"count":9,"href":"https:\/\/raspberry-projects.com\/pi\/wp-json\/wp\/v2\/posts\/570\/revisions"}],"predecessor-version":[{"id":1970,"href":"https:\/\/raspberry-projects.com\/pi\/wp-json\/wp\/v2\/posts\/570\/revisions\/1970"}],"wp:attachment":[{"href":"https:\/\/raspberry-projects.com\/pi\/wp-json\/wp\/v2\/media?parent=570"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/raspberry-projects.com\/pi\/wp-json\/wp\/v2\/categories?post=570"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/raspberry-projects.com\/pi\/wp-json\/wp\/v2\/tags?post=570"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}