difference between sudo bash and sudo su
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su vs sudo -s vs sudo -i vs sudo bash sudo should be read as /ˈsuːduː/. syntax sudo command i.e. switch user and do this command. 1  su is equivalent to sudo -i and simulates a login into the root account. 2  sudo -s launches a shell as root, but doesn't change your working directory. 3  sudo bash where bash is command to run with sudo.
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What is Linux Shell 1 Quick and dirty way to execute utilities. 2  The shell is not part of system kernel, but uses the system kernel to execute programs, create files etc. 3  Several shells are available for Linux including:  BASH ( Bourne-Again SHell ) - Most common shell in Linux. It's Open Source.
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- About Ubuntu. Ubuntu is an open source project that develops and maintains a cross-platform, open-source operating system based on Debian. It includes Unity, a consistent user interface for the smartphone, the tablet and the PC.ebian can be considered the rock upon which Ubuntu is built. It is a volunteer project that has developed and maintained a GNU/Linux operating system of the same name for well over a decade.
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Q: sudo: can't open /private/etc/sudoers: Permission denied | sudo: no valid sudoers sources found, quitting Basically, when I go in to Terminal and try running something with sudo, it just echoes: sudo: can't open /private/etc/sudoers: Permission denied. sudo: no valid sudoers sources found, quitting. I also get the same message when booted in to Single user mode, thinking it might just have been an issue with my users id.udo: no valid sudoers sources found, quitting. I also get the same message when booted in to Single user mode, thinking it might just have been an issue with my users id.
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Superuser It is often recommended that no-one use root as their normal user account, since simple typographical errors in entering commands can cause major damage to the system. Instead, a normal user account should be used, and then either the su (set user) or sudo (substitute user do) command is used.
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- From Linux Shell Scripting Tutorial - A Beginner's handbook. The /etc/shells is a Linux / UNIX text file which contains the full pathnames of valid login shells. This file is used by various commands including chsh command.
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- The result is that you can now run native Bash on Ubuntu on Windows! You can now run Bash scripts, Linux command-line tools like sed, awk, grep, and you can even try Linux-first tools like Ruby, Git, Python, etc. directly on Windows.
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Take Control of your Linux | sudoers file: How to with Examples The first thing I do when I install a new Linux is to use visudo to edit the sudoers file. And I always give my account root rights, then I can run commands as root without switching users. The best way to understand the sudo command, and the rules in sudoers file, the funny way is by this comics.he sudoers file located at: /etc/sudoers, contains the rules that users must follow when using the sudo command. If you have ever used used Ubuntu, you know that the root account is disabled. This is because the root password is not set in Ubuntu, you can assign one and use it as with every other Linux distribution.
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Background Information By default, the root account password is locked in Ubuntu. This means that you cannot login as root directly or use the. This means that in the terminal you should use sudo for commands that require root privileges; simply prepend. Please keep in mind, a substantial number of Ubuntu users are new to Linux.y default, the root account password is locked in Ubuntu. This means that you cannot login as root directly or use the. This means that in the terminal you should use sudo for commands that require root privileges; simply prepend. Please keep in mind, a substantial number of Ubuntu users are new to Linux.
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- Ubuntu (originally /ʊˈbuːntʊ/ uu-BOON-tuu, according to the company website /ʊˈbʊntuː/ uu-BUUN-too) is a Debian-based Linux operating system and distribution, with Unity as its default desktop environment for personal computers including smartphones in later versions. Ubuntu also runs network servers.
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su vs sudo -s vs sudo -i vs sudo bash su sudo -s sudo -i sudo bash I know for su I need to know the root password, and for sudo I have to be in the sudoers file, but once executed what is difference? I know there is a difference between su and sudo -s because my home directory is /root after I execute su, but my home directory is still /home/myname after sudo -s.
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4 Answers Both su and tu are possessive pronouns. Tu is the familiar form, and is a bit more friendly. Su is the polite form. You might say su to your mother in law, and tu to your mother.
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- 1 The shell is not part of system kernel, but uses the system kernel to execute programs, create files etc. 2  Several shells are available for Linux including:  BASH ( Bourne-Again SHell ) - Most common shell in Linux. It's Open Source.
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boot loader (boot manager) For Linux, the two most common boot loaders are known as LILO (LInux LOader) and LOADLIN (LOAD LINux). An alternative boot loader, called GRUB (GRand Unified Bootloader), is used with Red Hat Linux. LILO is the most popular boot loader among computer users that employ Linux as the main, or only, operating system. The primary advantage of LILO is the fact that it allows for fast boot-up.
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Bash (Unix shell) Bash is a Unix shell and command language written by Brian Fox for the GNU Project as a free software replacement for the Bourne shell. First released in 1989, it has been distributed widely as the default shell for Linux distributions and Apple's macOS (formerly OS X). A version is available for Windows 10.
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Difference Between SSH1 and SSH2 by admin. SSH1 vs SSH2. SSH (Secure Shell) is a protocol which is used to enable security to data communication over the networks. SSH was found by Tatu Ylonen (SSH Communications Security Corporation) in 1995.SH-USERAUTH: It is the protocol used for user authentication at the communication establishment. This protocol authenticates SSH client in SSH server. This protocol also runs over the transport layer. SSH-CONNECT: It is the connection protocol which multiplexes encrypted data into some logical streams.
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Differences between â<command> & disownâ and ânohup <command> & disownâ Differences between “<command> & disown” and “nohup <command> & disown”. Your understanding is basically correct. Both disown and nohup are used to allow you to exit a running shell session without stopping running jobs. Some clarifications: There's no reason to run nohup command & disown, nohup will already disown it for you. nohup is defined by POSIX while disown is not.
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Chapter 16 Â Securing Your Web Server command-line - what is the purpose of &&? In shell, when you see $ command one && command two the intent is to execute the command that follows the && only if the first command is successful. This is idiomatic of Posix shells, and not only found in Bash. It intends to prevent the running of the second process if the first fails.
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4.11. Ownership and Permissions That was one demonstration of Linux's security features. Linux, like UNIX, is a multi-user system and file permissions are one way the system protects against malicious tampering. One way to gain entry when you are denied permission is to enter the command su -. This is because whoever knows the root password has complete access.
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Manual disk partitioning guide for Ubuntu 11.04 On a default installation of Ubuntu 11.04, the installer creates just two partitions; the first for /, the root directory, and the second for Swap. When creating partitions for installing any desktop Linux distribution, my recommendation is to create the following four partitions: / 1 boot, the boot partition. /, 2  the root directory. 3  Swap, unformatted disk space for use as virtual memory. / 4 home, the partition where your home directory will be located.
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Difference Between GRUB and LILO GRUB is the default boot loader used in most Linux distributions today. GRUB can be configured dynamically as it allows changes to the configuration at the time of booting. Users are provided with a simple command line interface to insert new boot configurations dynamically.
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What does the commands sudo, apt-get, install, and fakeroot stand for? [closed] sudo = permits users to execute command as super user apt-get = Get a package from the Advance Packing Tool ( something like extract a package from a library kind of I believe) Install - Operation to do linux-kernel-devel - ?????( what does this mean) fakeroot - Lets user do file manupulations as a fake user.
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What are Debian and distros? Linux is a kernel. An operating system that uses the Linux kernel is known as a Linux distribution ('distro' in short). Some of these are also called GNU/Linux distributions because they mostly use GNU packages. Android is a popular exception, though. The Debian operating system is a GNU/Linux distribution. It is one of the earliest linux distros and is still popular to this day. It has served as a base for many other distros like Ubuntu, Mint, Kali, etc.
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Why use the terminal? Note that if you are using mv with sudo you can use the ~ shortcut, because the terminal expands the ~ to your home directory. However, when you open a root shell with sudo-i or sudo-s, ~ will refer to the root account's home directory, not your own. rm: Use this command to remove or delete a file in your directory.rmdir: The rmdir command will delete an empty directory. To delete a directory and all of its contents recursively, use rm-r instead. mkdir: The mkdir command will allow you to create directories.Example: mkdir music will create a directory called music. man: The man command is used to show you the manual of other commands.v: The mv command will move a file to a different location or will rename a file. Examples are as follows: mv file foo will rename the file file to foo. mv foo ~/Desktop will move the file foo to your Desktop directory, but it will not rename it. You must specify a new file name to rename a file.
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Differences between SUSE and Redhat Currently in the business server environment, Redhat is the leader. Personal servers are actually led by another distro called CentOS. The differences between the two systems are many, but as far as MAJOR differences there really are none to speak of, with the exception of Yast being in SuSE and not in Redhat having...
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Why do we use su - and not just su? su just switches the user, providing a normal shell with an environment nearly the same as with the old user. Imagine, you're a software developer with normal user access to a machine and your ignorant admin just won't give you root access. Let's (hopefully) trick him.