2011年10月22日 · su lets you switch user so that you're actually logged in as root. sudo -s runs a shell with root privileges. sudo -i also acquires the root user's environment. To see the …

2011年2月7日 · su - username sets up the shell environment as if it were a clean login as the specified user, it access and use specified users environment variables, su username just …

2018年8月22日 · Secondly: sudo -i and su - do the same thing (su - is equivalent to su --login), using different authorization mechanism: su verifies the password for the root account, while …

su - switches to the superuser and sets up the environment so that it looks like they logged in directly. su root switches to the user named root and doesn't simulate directly logging in. If the …

With su - you will be asked to authenticate with the root password. This only works if you have set the root password. This only works if you have set the root password. In terms of functionality, …

$ sudo su -c whoami nobody [sudo] password for oli: nobody When your command takes arguments you need to quote it. If you don't, strange things will occur. Here I am —as root— …

su - means environment variables will be reset to root and su means environment variables as old user. for example: root's home directory if you use su - or old user home directory if you use …

If you write a password in a command like su <username> -p <password>, it would be stored in plain text in your bash history. This is certainly a huge security issue. If you need to run …

那个慢啊，可是谁又不是这样过来的呢？学习，不管是英语学习、建筑学习，都是要讲究方式方法的，只有不断总结，不断反思，举一反三，才能够快速成长。关于su的学习，尤其是建筑学适 …

However, the OP has asked specifically about su to root. I was assuming they knew why they want to do that and that they have a good reason to do it. So I was adding an alternate path to …