9/21/2023 0 Comments Install truecrypt ubuntu 18.04Press Esc to exit the insert mode and enter the command mode. To edit a file, type i to enter the insert mode. – The command mode is for saving files, text manipulation and much more. – The insert mode allows you to insert/write text There is no need to be familiar with vi, just to know the some basics. It will open the /etc/sudoers file in vi (a text editor): The next step is to run visudo without any parameters. You can only run visudo as root, so that we’ll need to run su: Visudo edits the sudoers file in a safe fashion, locks the sudoers file against multiple simultaneous edits, provides basic sanity checks, and checks for parse errors. Editing the sudoers file is done via the visudo utility. To be able to run sudo on CentOS, one has to add the current user to the /etc/sudoers file. More information on su on the CentOS Wiki.Īfter years using Ubuntu and Linux Mint, I got used to sudo. ![]() ![]() Instead, you are supposed to use su or su root to get higher permissions. It also gives a quick introduction on using the vi text editor through visudo.ĬentOS, Scientific Linux and RHEL do not use sudo as Ubuntu does. This short howto is about setting up sudo on Red Hat Entreprise Linux and its derivates CentOS and Scientific Linux.
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