c: This option allows you to specify a command, which will be executed with the target user’s privileges. It sets the environment for the target user as if they had logged in directly. l: This option makes su behave like a login shell. This is an incredibly useful tool for anyone looking to quickly switch identities! This makes it an ideal tool when switching between users in your system. It either launches a login shell that follows your current directory and environment (su), or completely transitions to another user’s settings (su -).
#Ubuntu sudo su how to#
How to Use the su Commandīy using the su command, you can rapidly shift between users without any hassle.
Additionally, sudo’s authentication process adds an extra layer of security, which can be beneficial for enterprise-level implementations. The downside is that it requires more effort from the system administrator to manage proper control of which users can become superusers. In contrast, su makes it easy for users with the appropriate permissions to switch contexts and execute commands as another user without restriction. Further, with sudo, system administrators can conveniently decide which commands may be run by specific users without having to give that user root access. In terms of usage and performance, sudo is generally considered to be faster and simpler than su due to its limited scope and access restrictions. Unlike the sudo command, su does not require any verification or authentication to switch users. On the other hand, su stands for ‘substitute user’ and will allow any logged-in user to switch their current session’s privileges to that of another user. With sudo, users are restricted to executing specific commands for which they have been given access rights. This is done by temporarily changing the user context to that of the root user. The sudo command is designed to provide temporary privileged access or superuser status to users who are not logged in as root.
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