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- What are the differences between su, sudo -s, sudo -i, sudo su?
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 difference between su and sudo -s, do cd ~ and then pwd after each of them In the first case, you'll be in root's home directory, because you're root
- What is the difference between su - and su root? [duplicate]
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 superuser is named root, then su and su root are equivalent (and don't simulate directly logging in), as are su - and su - root (which do)
- Is there a single line command to do `su`? - Ask Ubuntu
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 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
- bash - su options - running command as another user - Unix Linux . . .
$ 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— trying to create a directory in home oli (as oli) without quoting the full command: # su -c mkdir home oli java oli No passwd entry for user ' home oli java'
- How do I set the root password so I can use su instead of sudo?
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- sudo - How do I login as root? - Ask Ubuntu
sudo su - to execute a login shell as root after auhenticating sudo, and that shell will not need sudo to run admin commands To return to the normal user shell, insert the command exit You can have several terminals, one of them as root, and the rest as normal user, but you have always to be careful when making changes to the system and read
- Whats the difference between `su -` and `su --login`?
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) It is recommended to always use the --login option (instead of its shortcut -) to avoid side effects caused by mixing environments
- su vs sudo -s vs sudo -i vs sudo bash - Unix Linux Stack Exchange
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 su sudo ( s uper u ser do ) is a command-line utility that allows users to run programs with the security privileges of another user, by default is
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