Linux - su

su - && su - root: the same, login as root, pure login of root, totally new login of root, .bash_profile and .bashrc will be sourced.

su root && su : almost the same. A interactive shell will be open, use the exit will jump to the former users‘ shell. Only .bashrc will be sourced.

su && su -: su will not change the execution environment while su - will change the execution environment. 

su && sudo: sudo is one strict kind of su. Refer.

郑重声明:本站内容如果来自互联网及其他传播媒体,其版权均属原媒体及文章作者所有。转载目的在于传递更多信息及用于网络分享,并不代表本站赞同其观点和对其真实性负责,也不构成任何其他建议。