If you aren't trying to execute any other command (meaning, you're just trying to run sudo -s) then you get an interactive shell with root privileges. What's worth keeping in mind here is that the -s command line option gives you a shell with root privileges, but you don't get the root environment - it's your .bashrc that gets sourced.
sudo – this is mandatory as a prefix for a command if you need root privileges. apt-get – to manage a package (install/remove/update) you need to start your command with this. update – unlike what you’d expect, it instructs to fetch the latest list of available packages from the repositories – instead of “updating the packages”. What Is Sudo Command in Linux? – POFTUT sudo or superuser do is a utility used on Linux, BSD and Unix systems that provides the running command with root or Administrator privileges. Not every user needs to have root privileges but in some cases needs to run commands with root privileges. We can use sudo to run some specific or all provided commands and edit files with the root privileges. Root user/sudo - Raspberry Pi Documentation Root user/sudo. The Linux operating system is a multi-user operating system which allows multiple users to log in and use the computer. To protect the computer (and the privacy of other users), the users' abilities are restricted.
The sudo binary can be exploited to gain some information or even get root access. Sometimes, the user(s) may have in their sudoers file something like MY_USER ALL=(ALL) NOPASSWD: ALL , in which case, if you can get access as the user MY_USER , you can run any and all sudo / root commands without passwords.
Oct 24, 2018
sudo determines who is an authorized user by consulting the file /etc/sudoers. By giving sudo the -v flag, a user can update the time stamp without running a command. The password prompt itself will also time out if the user’s password is not entered within 5 minutes (unless overridden via sudoers). Installation — SciPy.org - SciPy.org — SciPy.org We recommend using an user install, sending the --user flag to pip. pip installs packages for the local user and does not write to the system directories. Preferably, do not use sudo pip, as this combination can cause problems.. Pip accesses the Python Package Index, PyPI, which stores almost 200,000 projects and all previous releases of said projects.. Because the repository keeps previous