Sudo su asks your password, becomes root momentarily to run su as root If you need to run commands with su (or sudo) in an automated way, write a shellscript containig the commands without su or sudo and run su <username> script.sh So in this case you are running su using sudo and you don't have to know root's actual password
Su root switches to the user named root and doesn't simulate directly logging in This is certainly a huge security issue Your working directory will be /root, and it will read root's.profile etc
Sudo bash where bash is command to run with sudo. From su 's man page For backward compatibility, su defaults to not change the current directory and to only set the environment variables home and shell (plus user and logname if the target user is not root) I am having problems with the su command
I know my password and i am typing it correctly, but su indicates authentication failure So i checked on the internet and then went into recovery mode and 知乎，中文互联网高质量的问答社区和创作者聚集的原创内容平台，于 2011 年 1 月正式上线，以「让人们更好的分享知识、经验和见解，找到自己的解答」为品牌使命。知乎凭借认真、专业、友善的社区氛围、独特的产品机制以及结构化和易获得的优质内容，聚集了中文互联网科技、商业、影视.
