Su command in linux This command can be used two different ways: ‘su -user’ and ‘su - user’. This does not mean that the root account has been deleted or that it may not be accessed. com Apr 16, 2024 · The su command (substitute user or switch user) is used to switch to another user or the root. Jan 29, 2024 · The ‘su’ command in Linux is used to switch to another user account in the system. Jan 4, 2025 · The su command in Linux is an essential tool for system administrators and users alike, providing a means to execute commands with substitute user and group IDs. It merely has been given a password which matches no possible encrypted value, therefore may not log in directly by itself. Use sudo su over su when root login is disabled. These two subtle variations su - Unix, Linux Command - Change the effective user id and group id to that of USER. What is su? su command is used to become another user during login session. The `su` command can be followed by the name of the user to switch to, and will prompt the user for the password of the user they are trying to switch to. By default, it switches to the root user, allowing administrators to perform tasks that require elevated privileges. If su has to kill the command (because it was asked to terminate, and the command did not terminate in time), su returns 255. e. d/su-l: auth required pam_wheel. It also allows you to switch to the root account (if run without any arguments) or another specified user account. We will also provide some tips on how to practice and learn Linux commands. support of a wheel group have to be configured via PAM. This allows users to run commands with elevated privileges for a short time (15 minutes by The su command is a powerful Linux tool that enables you to switch your user identity and execute commands with elevated privileges. and-s, --shell SHELL The shell that will be invoked. The su command provides administrative access to another user. Table of Content What is Linu Nov 17, 2020 · As the su command relies on Linux’s PAM for authentication purposes, we can disable the password prompt for the su command through its PAM configuration file. su - root -c "whoami" ### Output: root su Command Line Options. Learn how to use the su command in Linux! Jun 14, 2024 · Learn how to use the su command to switch users, execute commands, and preserve environment variables in Linux. For example, I want to run the df command as the root user: $ su -c df. The util-linux version has been refactored by Karel Zak. Encrypted passwords appeared in Version 3. The most common use of the su is to get superuser privileges. Likewise once I've su'd, if i exit my shell and go back up to root it will also hang. However, there are two variations of the `su` command: `su` and `su -` (su hyphen). The option “-,” which stands for “login shell,” is one of the common options to change the behavior of the su command. Learn the differences in their usage, security implications, and scenarios where each command is most effective, enhancing your understanding of Linux system administration and security. The command is Whats the difference between sudo and su command? How can we use them properly? This Linux su command tutorial shows you how to temporarily substitute users to run a command with examples and syntax. If the su command is run from the /usr/bin/tsh shell, the trusted shell, you exit from that shell. By simply passing the username to the su command, it will provide the login session after the password authentication as shown below Linux User Commands. "su" command May 16, 2024 · Under Linux (and other Unixish operating systems), you use the command called su to become another user during a login session or to login as super user. Dec 17, 2024 · The su command, short for “substitute user,” is a utility in Unix and Linux-based operating systems that allows a user to switch to another user’s shell. -c, --command Use this options to pass (If the system supports syslog. The options which apply to the su command are: -c, --command COMMAND Specify a command that will be invoked by the shell using its -c. su Command. sudo -i also acquires the root user's environment. Primarily used to execute commands with the privileges of another user, the su command is essential for system administrators and users who need to operate with elevated permissions or access a different user environment. ) However, GNU su does not check if the user is a member of the 'wheel' group; see options above. su - root -c "whoami" Output: root “su” Command Aug 3, 2020 · How to Use the su Command. But, sudo asks for the password of the current user. --session-command=command Same as -c but do not create a new session (discouraged). The su command stands for "switch user" and is used to switch to another user account or the root account. g. For example add existing user rocky to wheel group # usermod -G wheel rocky. The su command does not change the security characteristics of the controlling terminal. Now open /etc/pam. Some exit values from su are independent from the executed Understand the su Command. While you’re logged in to the terminal shell with one user, you might have the need to switch to another user. id - Print user and group id’s. Using the criterion below, to switch to ubuntu, you can use the following command: su ubuntu Major difference between the "su" and "su -" Here is a list of the main differences between the su and su - commands in Linux: 1. The su command in Linux switches users using the command-line interface. Mar 18, 2024 · su is one of the core utilities in Linux. If you want a root shell, run sudo -i or sudo -l. To understand the basic usage of the su command, let's start with a simple example: sudo su. While logged in as root I would like to su to a specific regular user. Here is the man entry:-S The -S (stdin) option causes sudo to read the password from the standard input instead of the terminal device. , "-sh". The syntax to switch users using the su command in the Linux Terminal is: su <options> <username> In the above syntax, replace <username> with the name of the user account you want to switch over to. su command is su - run a command with substitute user and group ID 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). su pwcadm -p pwcadm -c "kill -9 29205" Is there command please help. Use su -. they have /bin/false or /usr/bin/nologin set as their shell). Nov 12, 2014 · After that i have used the below command but it is asking for password, and i want to pass the password in su itself. d/su PAM config file: # vi /etc/pam. Jan 19, 2024 · The 'su' command, short for "switch user" or "substitute user," is a powerful tool that facilitates this transition. Among the most commonly used of su's few options is -c, which tells su to execute the command that directly follows it on the same line. If invoked without a username, su defaults to becoming the super user. The util-linux version has been refactored by Karel Zak On success, su returns the exit value of the command it executed. like: sudo su - root . $ su -c “command” username. -, -l, --login make the shell a login shell -c, --command=COMMAND pass a single COMMAND to the su(1) - Linux man page Name Jun 6, 2024 · A system running Linux (this tutorial uses Ubuntu 22. Output:-l change the user name Oct 13, 2020 · Trong hệ thống Linux, do quyền root quá lớn nên thường không được sử dụng. A user ID (UID) is a particular user identity, whereas group IDs (GIDs) can contain more than one user's identity. Use su for user switching beyond just root. What am I Nov 9, 2016 · Linux su Command Summary with Examples (3:12) Video Script The Command and Why You Need It. sudo Command Syntax. -, -l, --login Jan 1, 2023 · In Linux, the `su` command allows a user to switch to a different user account. I know my password and I am typing it correctly, but su indicates Authentication failure. The su command, short for “substitute user” or “switch user,” allows you to assume the identity of another user on the system. This article will delve into the intricacies of the 'su' command, exploring its various options and providing practical examples to demonstrate its usage. To see the difference between su and sudo -s, do cd ~ and then pwd after each of them. Even now, entering the same password on su gives me Authentication failure. Login into another user account. 3 su examples 1. Cuando se utiliza con la -i opción, sudo ejecutar una interactive shell de inicio de sesión con el usuario root del medio ambiente: 1 day ago · The su (substitute user) command allows a user to switch to another user account. sudo -s runs a shell with root privileges. The su command stands for substitute user, and it is mostly used for switching from one user to another. But consider risks. The `su` command has a number of options Linux su 命令 Linux 命令大全 Linux su（英文全拼：switch user）命令用于变更为其他使用者的身份，除 root 外，需要键入该使用者的密码。 Aug 31, 2015 · SU vs. -m, -p, --preserve-environment Preserve the current environment [] The reason you land in a bash shell after calling su - is that this the default shell This su command was derived from coreutils' su, which was based on an implementation by David MacKenzie. I looked into the documen Dec 21, 2020 · In that condition, su provides you -c option to run command as another user without actually switching the shell. su lets you switch user so that you're actually logged in as root. logname - Print current Jan 2, 2023 · As you can see, the su command is an incredibly powerful tool for managing users in a Linux environment. We will also address a few FAQs on how to use su Command in Linux (Switch User). Linux id command is used to print the genuine and effective user ID and group ID. Sie können Benutzer nahtlos wechseln und bieten eine Reihe anderer nützlicher Funktionen, mit denen Sie Ihre Linux -Erfahrung bewältigen können. Syntaxnya adalah sebagai berikut: su [opsi] [username [argumen]] $ su --help Usage: su [options] [LOGIN] Options: -c, --command COMMAND pass COMMAND to the invoked shell -h, --help display this help message and exit -, -l, --login make the shell a login shell -m, -p, --preserve-environment do not reset environment variables, and keep the same shell -s, --shell SHELL use SHELL instead of the default in passwd Dec 18, 2023 · The su command, which stands for switch user, is a powerful tool to switch from one user account to another. Try Teams for free Explore Teams Dec 27, 2023 · Use su for multiple commands or interactive shell access. Related Linux commands. Simply find the user you need and add it to the su command syntax. If this command was terminated by a signal, su returns the number of this signal plus 128. It is especially useful for system administrators who need to perform tasks as a superuser or as another user with elevated privileges. Local Groups Sep 25, 2019 · The su command on Ubuntu Linux is a powerful tool that enables the current user to act as another user during the login session. We began with the basics, demonstrating how to install the ‘su’ command on various Linux distributions. In that condition, su provides you -c the option to run the command as another user without actually switching the shell. So su --is just su and not su -! So su --would be as unsafe to the (funny and instructive) example givan by wag. Both UNIX and Linux have a group called wheel. Dec 7, 2023 · The su command is often used in conjunction with other commands like sudo for temporary elevated access, passwd for changing passwords, and whoami to check which user you’re currently logged in as. It's reccomended to use sudo instead of su if possible, but to return to your normal account after calling su, simply use the exit command The su command in Linux The main work of the su command is to let you switch to some other user during a login session. In the world of superuser commands, we have four main choices: su, su-, sudo -i and Oct 1, 2024 · As a new Linux user, you may always face confusion regarding the difference between `su` command and `su -` command. The sudo command syntax is simple: sudo [command] When you run the sudo command, a timestamp is recorded in the system logs. [5] The command is available as a separate package for Microsoft Windows as part of the UnxUtils collection of native Win32 ports of common GNU Unix-like utilities. sudo just elevates your privileges to root for the current command. Mar 25, 2024 · Learn how to use the su command in Linux to switch to another user account, specify a shell, or run a command. Table of Content What is Linu Feb 7, 2011 · Ie, in "rm -i -- -f" : -f is then treated as a regular argument, so here as the name of the file to rm -i, and not as an additionnal -foption to the rm command. Firstly, we open up the file /etc/pam. The command su, including the Unix permissions system and the setuid system call, was part of Version 1 Unix. I run su username and immediately receive the prompt back, still as root. The Jan 11, 2015 · Today We’re going to discuss sudo and su, the very important and mostly used commands in Linux. You can now easily switch between multiple users on dedicated server hosting from Atlantic. Aug 11, 2021 · Que vous soyez sur Ubuntu, Debian, Mint, Fedora ou tout autre distribution Linux, vous pouvez utiliser la commande su qui est native. Example Ask questions, find answers and collaborate at work with Stack Overflow for Teams. Some of the common options to pair Nov 16, 2006 · However you can restrict the use of su command for security reasons. To display a list of commands, enter the following: On success, su returns the exit value of the command it executed. As mentioned above, root user can do 'su -' without entering password, so doing 'su -' inside of a root shell, you will have two different root shell processes. Net! In this tutorial we learn how to use su commmand in Linux. su allows you to temporarily substitute users. A quick guide to the `su` command, used to switch the shell to another user. For more info see this page and following manual pages using the man or help commands : Jan 16, 2022 · The sudo privileged users can also prefix sudo with su command. <options> This field takes in a range of options that specify how the su command should function and print the Jan 8, 2024 · Wrapping Up: Installing the ‘su’ Command in Linux. Dec 28, 2023 · The Linux ‘su’ and ‘sudo’ Command Explained: A detailed guide on the ‘su’ command, including its syntax, options, and examples. Linux su command has only few but very useful option. Chỉ trong một số trường hợp đặc biệt, root mới được sử dụng để thực hiện các tác vụ quản lý, Nói chung, các lệnh su và sudo thường được dùng để tạm thời sử dụng quyền root. Learning how to use the su command on Ubuntu Linux can help users gain more Oct 24, 2008 · For sudo there is a -S option for accepting the password from standard input. Jan 8, 2024 · This guide compares 'su' and 'sudo', two fundamental commands in Linux for managing user privileges. similar to su, but will not run Linux_PAMLinux Apr 23, 2019 · コマンド 意味 説明; su: ユーザを切り替える(Substitute User) ユーザーを切り替えるのに使用する。 Nov 8, 2023 · If I run the 'whoami' command as the default user: whoami I'll see this: robert But if it run the 'su' command first, and then enter the root user's password: su I'll see this: whoami root Origin Of 'su' Command. In other words, the tool lets you assume the identity of some other user without having to logout and then login (as that user). su (switch user) est une commande qui permet de s’identifier avec un autre utilisation ou passer une commande avec un autre utilisateur dans un terminal. Output:-c run command with specified user. Now let’s take a look at some best practices for using it. The syntax of su command $ su [options] [username [arguments]] [options]-h show help information $ su -h. There are many scenarios where the su command can be invaluable for Linux admins and users. Some Linux distros have made the decision to disable the administrative root account by default in all installations. In other words, it allows access of the Linux shell to another user. d/su with any text editor. Aug 2, 2024 · FAQs on Linux Commands Cheat Sheet; Basic Linux Commands with Examples. Jul 24, 2017 · The man page for su is quite clear on this point: The command will be executed by the shell specified in /etc/passwd for the target user. Dec 29, 2019 · Si el usuario se concede con sudo evaluar la su comando se invoca como root. The -c Option. Linux id Command. Firstly we will see what these commands do then we’ll know the difference between both of them. The su (substitute user) command in Linux is used to switch to another user account within a terminal session. SU(1) User Commands SU(1) NAME su - run a command with substitute user and group ID SYNOPSIS su [options] [-] [user [argument]] DESCRIPTION su allows to run commands with a substitute user and group ID. Feb 21, 2017 · How can I loging with su command in one line in the terminal? I know that sudo command can do that: echo [password] | sudo -S [command] But when I try to imply it in su command : echo [password] | su [username] I get en error: standard in must be tty I don't have access to the sudo account (so I can't access and edit the sudoers file) This su command was derived from coreutils su, which was based on an implementation by David MacKenzie. Generally, with su command, you will need the password of the target user. The executed command will have no controlling terminal. Apr 15, 2023 · In this tutorial, we saw how to switch to the root user account on a Linux system. Our seventy-eighth word, or command to memorize is su from our category Users. In this Linux cheat sheet, we will cover all the most important Linux commands, from the basics to the advanced. OPTIONS -c command, --command=command Pass command to the shell with the -c option. Mar 24, 2023 · Usage $ su [user] When an ordinary user invokes the su command they will be prompted for the password of the user whose account they are attempting to utilise. Mar 5, 2024 · This tutorial explained how to gain root access in the Ubuntu Linux terminal session using the sudo and su command. May 9, 2015 · Pro tip: There is never really a good reason to run sudo su. I recommend that you always use the sudo command to become root user on Ubuntu. In this comprehensive guide, we’ve delved into the nuances of the ‘su’ command in Linux, a powerful tool for managing user switching on your system. Dec 14, 2024 · In Linux and Unix-based systems, administrators and users often need elevated privileges to perform certain tasks. Syntax of Linux SU command. Common examples include: The su command (switch user) is a part of the user management. If you have activated the root account, you can also run su alone, but sudo su is just not useful. It is very important for a Linux user to understand these two to increase security and prevent unexpected things that a user may have to go through. If not defined, then ps would display the name of the shell actually being run, e. Common Linux su Options The su Command. The util-linux version has been refactored by Karel Zak Jul 3, 2024 · The major difference between `su` & `su -` commands in Linux. Sudo Having to use SU can be a bit annoying for some, so the sudo command was invented. Some configuration options found in other su implementations such as e. Allows you to run a specific command as another user without switching to their shell. "It was just like Romeo and Juliet, only it ended in tragedy” ~ Milhouse. Such command is executed as the new user, and then the terminal window or Aug 31, 2023 · Practical Examples of the “su” Command in Linux. This cheat sheet is useful for Beginners and Experience professionals. How to Use the su Command. To switch to another user, use the su command. Ejecutando sudo su - y el uso de la contraseña de usuario es el mismo que ejecutar su - uso de la contraseña de root. So I checked on the internet and then went into recovery mode and changed my user's password to what I was entering before. SYSLOG_SU_ENAB: boolean: Enable "syslog" logging of su activity - in addition to sulog file Dec 4, 2023 · Example of su command. Unlike the sudo command, which executes a single command as another user, the su command switches the entire user environment to that of the target user. Once a correct password is entered, the shell prompt will return and the user will now be operating with the permissions and access privileges of the target account. To switch to the ‘apache’ user from your current user session, you can use the su command as follows: su - apache Oct 8, 2024 · The su command is an essential tool for managing Linux systems, allowing you to switch users, run commands as other users, and perform administrative tasks effectively. For example, if this is defined as "su" then a ps displays the command as "-su". Tracing the 3 min read . FactorPad Linux Essentials playlist Der su Der Befehl ist ein leistungsstarkes Tool, mit dem Benutzer in einer Linux -Umgebung verwaltet werden können. The su command is now a part of the util-Linux package. Understanding Linux systems can be a bit like choosing from a menu with lots of options. chroot - Run a command with a different root directory. Let’s disable the password prompt when user dave is executing scripts as user annie. Sometimes, you may only need to switch user to run a single or few commands only. 'sudo su -' has a child of 'su -', and 'su -' has a child of '-su'. This option cannot be used to execute interractive programs which need a controlling TTY. See common options and examples of the su command with different scenarios and use cases. so use_uid Nologin users. d/su and /etc/pam. A user account with sudo. The su command has the following general syntax: su [OPTIONS] [USER [ARGUMENT]] su's default behavior when executed without any options is to perform an interactive Oct 7, 2013 · If you write a password in a command like su <username> -p <password>, it would be stored in plain text in your bash history. Short for "SU do", this command can prefix any other command that you want to run as root while still logged in as your normal user. Whether you’re a seasoned Linux user or a newcomer, understanding how to use su effectively can significantly enhance your system management skills. You cannot run commands as an other user by simply using su user-c command if they are not allowed to login (i. The general syntax of using the “su” command is: Dec 11, 2004 · Arguments used with su can include the hyphen and a username as well as arguments for commands that are used with su. 1. We can add user to this group. In this step, you will learn about the su command in Linux, which stands for "switch user". Sep 2, 2014 · Using su as you do here spawns a new shell that has nothing to do thus exits immediately. In Linux, the `su` command is used to switch to another user account. The su command allows you to switch to another user account, typically a user with elevated privileges, such as the root user. It allows users to execute commands as another user. Here’s a simple example of the su command: su - testuser # Output: # [The shell Related Commands. Either pass the command to su: su - test -c /opt/linux/agent-service start Or use sudo in a similar manner: sudo -u test /opt/linux/agent-service start Apr 6, 2012 · You don't need to use sudo and su together--su switches your user account (without arguments it switches you to root). Example 1: Switch to the Root User Using the “su” Command in Linux. Change the effective user id and group id to that of USER. . d/su I am having problems with the su command. Apr 26, 2024 · As a new Linux user, you may always face confusion regarding the difference between `su` command and `su -` command. For more details on su command, please read 9 su command examples in Linux [Cheat Oct 22, 2011 · sudo lets you run commands in your own user account with root privileges. The su command, like other Linux commands, has different options for different purposes. Understanding su is crucial for system administration tasks and for users who need to operate in a multi-user environment. These options are very useful while automating tasks with the shell scripts. Access to the terminal. su Command Options. Jul 14, 2023 · The su command is used to switch to another user, in other words change user ID during a normal login session (that is why it is sometimes referred to as switch (-) user by a number of Linux users). Jan 30, 2025 · Perintah su memungkinkan Anda menjalankan program di shell Linux sebagai user lain. Apr 24, 2023 · What Exactly Are “su” and “sudo”? In Linux and Unix systems, su and sudo allow users to perform tasks with elevated privileges, such as running system commands or installing software packages. Two common commands for obtaining root or superuser access are sudo and su. Let‘s see some usage examples next. To run a single command as the root user with su, run the following command: su -c 'command' This is similar to running a command with sudo, but you'll need the root account's password instead of your current user account's password. Any ideas? There's nothing in /var/log/secure other than pam authentication messages. The su command in Linux is a command which helps to switch from a current user to another user. If executed without a username , for example su - , it will login as root user by default. su - <user> Eventually it does switch user. When used without any arguments, su switches to the root account by default. Unlike sudo , which executes a single command with elevated privileges, su opens a new shell with the privileges of the target user. 04). Linux User Management : A comprehensive guide on user management in Linux, including how to add, delete, and modify users. The recommended approach is to use the sudo command in order to execute commands with root privileges, but we can also log directly into the root user account, either with the sudo -i or su - commands, depending on how our system and user account has been configured. – Jun 29, 2023 · Thesu command is known as the switch command among Linux users because it changes the user ID during a normal login session. Mar 18, 2022 · The su command is a special Linux command that allows you to run a command as another user and group. See full list on linuxize. It is often mistaken as an abbreviation for “super user”, but it is an abbreviation for “substitute user”. 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. On success, su returns the exit value of the command it executed. Mar 30, 2021 · Bryant Jimin Son is a Consultant at Red Hat, a technology company known for its Linux server and opensource contributions. Sep 10, 2023 · Photo byKlaus Nielsen. Best Practices for Using the Su Command. It does this by starting a login shell in the current directory and environment (su) or by completely changing to the setting of the target user (su -) . The su command is an abbreviation for “substitute user” because it is used for switching to another user during a normal login session, but it is often mistaken as an abbreviation for “super user” as mainly su command is used for getting “super user” privileges as when su command is run without a username, we Dec 20, 2022 · The user name should be passed as an argument to su command in linux if you want to change to another user. Jun 18, 2024 · su Command. Privilege Escalation in Linux Sep 20, 2020 · Linux commands: su . Whether you need to perform administrative tasks, debug system-level problems, or impersonate other users, the su command is a valuable asset in your Linux toolbox. The sudo command is often preferred over the su command for executing commands with superuser privileges, as it can be configured to allow specific permissions without sharing the root password. ‘su‘ Command Use Cases and Examples. To run a command as a different user, use sudo -u username command. May 9, 2017 · su Linux Command – su ใช้ในการ login ด้วย user id อื่น คำสั่ง su – <username> $ su - staff password: <staff>$ โครงสร้างคำสั่ง su [options] [username] รายละเอียด เป็นคำสั่งที่ใช้ในการ login ด้วย user id อื่น โดยการสร้าง The following article will guide you in detail on how to use the su command in Linux. Nov 6, 2021 · SU_NAME: string: If defined, the command name to display when running "su -". 17. Suppose you need to execute tasks or run commands as the ‘apache’ user, which is commonly used for managing the Apache HTTP Server on a Linux system. The 'su' command is one the oldest commands for gaining elevated privileges: Sep 28, 2016 · Linux is flexible, so it doesn't take much work to make su work similarly to sudo -- or vice versa. All users by default are allowed to access the su command. su username. In the first case, you Nov 25, 2023 · su Command Syntax. When you use us without any options, you’re prompted to enter the password of the target user, typically the root user. Although both serve similar purposes, they function differently and are used in distinct scenarios. Find out the definition, purpose, and syntax of the su command, as well as its security considerations and alternatives. Aug 23, 2016 · sudo su - However If i subsequently su to a user from root it hangs for around 30-60 seconds then times out. The syntax of the su command is pretty easy: su <options> <user <argument>> Let us look at the fields present in the syntax of the su command: 1. If user is member of this group she can use su command. sh The sudo command allows a user to execute command as the root user whose privileges are elevated. The “su” is the abbreviation for the “ Switch User ”. On the other hand su command allows one to switch to a different user with different privileges and execute commands without logging out from the current session. And yes, I know you see it everywhere. Apr 24, 2024 · What is difference between su and sudo command in Linux? In Linux, the su (switch user) command enables users to log in as another user, often the root user, and access their files and settings. Table of Content What is Linu Dec 27, 2024 · As a new Linux user, you may always face confusion regarding the difference between `su` command and `su -` command. In contrast, the sudo command enables users to run certain commands with increased privileges without logging in as the root user. This action ends the shell called by the su command and returns you to the previous shell, user ID, and environment. This su command was derived from coreutils' su, which was based on an implementation by David MacKenzie. To use the su command, enter it into a command-line as follows: su [options] [username [arguments]] If a username is specified, su defaults to the superuser (root). Command ini sangat berguna untuk membuat koneksi melalui SSH ketika user root dinonaktifkan. Now that we‘ve compared sudo and su, let‘s look at some other considerations around privileges. This is certainly a huge security issue. Nov 8, 2023 · $ su - # Or just to run a quick command as root without full login: $ su -c ‘apt update‘ These options enable precise control over su behavior. The su command in Linux has many practical applications, and I have illustrated a few of them in the following examples. This command is a useful tool for user management. By default (without username parameter), its become the superuser. The main syntax is: su [user_name] or. The su command is a powerful tool, but it’s important to use it properly in order to ensure the security of your system. ending the inner one will let you return back to the outer one. su - [user_name] Uncomment the appropriate line in /etc/pam. The SU just needs to place your normal user account in the "sudoers" group, and then you're allowed by the system to Oct 13, 2023 · In this tutorial, we'll go through how to utilize the su command. Some exit values from su are independent from the executed Jan 2, 2024 · su command is used to switch the user account whereas sudo command is used to run the command as the root user or a different user. Dec 21, 2023 · The su (Substitute User) command allows you to switch to another user’s account in the current session. You can work around this by specifying the shell to I'm quite new to Linux terminal and I'm not quite sure what the difference between su with a hyphen and su without a hyphen is, for example: su - username vs. At work, he is working on building the technology for clients leveraging the Red Hat technology stacks like BPM, PAM, Openshift, Ansible, and full stack development using Java, Spring Framework, AngularJS, Material design.
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