Questions related to the sudo command that allows users to run programs with the privileges of a different user (normally the root user).

learn more… | top users | synonyms (1)

10
votes
2answers
467 views

Run only parts of a script as sudo, entering password only once

I am writing a script (actually a combination of scripts and makefile) that installs external dependencies: some apt-get commands, some git cloning, building, installing, adding users to groups, ... ...
9
votes
6answers
6k views

Disabling shutdown command for all users, even root - consequences?

I would like to disable the shutdown command for all users, even root, on an Ubuntu Server installation. The reason I want to do this is to ensure that I don't get into the habit of shutting down the ...
6
votes
1answer
4k views

Sudo doesn't work: “/etc/sudoers is owned by uid 1000, should be 0”

When type sudo command by Terminal then show error, How to fix this sudo: /etc/sudoers is owned by uid 1000, should be 0 sudo: no valid sudoers sources found, quitting sudo: unable to initialize ...
6
votes
1answer
12k views

How to allow execution without using the sudo?

I am writing a Java application where i need to do a command line execution and get a result back, but when i execute the command, it ask for sudo password. So far i tried: $ sudo -s $ vim ...
11
votes
1answer
1k views

Why I have to type my password after exiting a sudo -i session?

sudo -i in the terminal will made normal user into root user & after changing into root user if we exit then again we will be back to normal user.If we try again , next time it directly takes me ...
7
votes
1answer
43k views

“error: XDG_RUNTIME_DIR not set in the environment.” when attempting to run nautilus as root

I am attempting to run nautilus as root but when I run "sudo nautilus" from the terminal, I get the following error: error: XDG_RUNTIME_DIR not set in the environment. (nautilus:9341): ...
5
votes
2answers
3k views

How to get GUI sudo password prompt without command line?

Currently, for all my commands that require root access, I have to type them out on a command line. I would like for the GUI to prompt me to key in my password, when sudo is required, instead of ...
5
votes
1answer
2k views

Changed owner of /usr/bin

I did it... I guess everyone does it sometime, but this was my first. I executed sudo chown -R /usr/bin and before I realized my mistake, it was too late... Now I can't access sudo because I receive ...
2
votes
1answer
3k views

Block a command from sudo user

I don't need an administrator to change my root password. I don't want any sudo user to execute this command: sudo passwd $root I have tried it in the sudoers file using the following command: ...
1
vote
1answer
4k views

Running a program as another user without typing a password

I'm trying to mark my browser internet traffic with a DSCP by selecting the packages with a certain owner. In order to do that I have to start my browser with a dummy user. I start my browser by ...
-1
votes
2answers
554 views

Why gedit can't be used with sudo? [duplicate]

I read this answer explaining that "sometimes" root can own something at /home/$USER directory. Can anyone give an example how to prove it. Just give a test case when something really bad happens, ...
8
votes
1answer
34k views

Open file or application as root from GUI

Is it possible to open a file or application as root from the GUI? My ideal would be right-clicking on a file or an application and seeing an "Open as Root" choice in the context menu, after which I ...
8
votes
1answer
603 views

Use one password for administration and another for system login

How can I give a user one password for normal usage when logging in, and another password for system administration and sudo access? I want one user to have two passwords.
6
votes
2answers
12k views

What's the difference between 'sudo [command]' and 'sudo sh [command]?

I'm trying to install VMware Workstation in my Ubuntu 12.04.2 LTS. If I execute the following command: sudo ./VMware-Workstation-9.0.1-894247.x86_64.bundle it finishes at once and the installation ...
6
votes
2answers
6k views

Password not working in Graphical Applications (gksu)? Works with sudo

I am having a problem where when I try to run say GParted, when I am prompted for a password, it says "Incorrect Password" But when I enter the same password using terminal sudo gparted for example, ...
4
votes
2answers
2k views

Can't login to my account, I know the password

I use Xubuntu 14.04 64 bit. I was watching a movie, the desktop froze (as usual duh!), I logged out using a terminal, and couldn't log in to my account after that, I'm using a terminal. I type my ...
1
vote
3answers
7k views

How to reset default permissions for /etc?

By mistake I have made permission changes for /etc. Now it's giving me the following error message: bash: /etc/bash.bashrc: Permission denied I have no name!@chandan-Inspiron-5520:~$ sudo ...
1
vote
4answers
12k views

How to run a file with sudo without a password? [duplicate]

Possible Duplicate: How to run an application using sudo without a password? I've made a script that preforms various system tasks, that I run regularly, but I have to use sudo to run the ...
7
votes
2answers
4k views

How do I make a sudo command start at start-up with a 1 minute delay?

I would like to make a sudo command (sudo service smbd restart) run after 1 minute of being logged on. How would I go about doing this? P.S. This is a system with no monitor, mouse, keyboard or ...
5
votes
2answers
2k views

Standards accounts are able to get root access using sudo without password request

I have installed a particular software using the installer present using the command sudo ./install.sh. After the installation now all the accounts on my ubuntu laptop can gain root access by ...
4
votes
2answers
2k views

How do I give root privileges to an app?

I tried to submit an app to the Ubuntu Software Centre but it was rejected because you needed to put in the admin password to use it. I need to grant root privileges to the app for it to function so I ...
4
votes
3answers
8k views

Firefox doesn't launch in Ubuntu 13.04

Firefox starts when I use sudo in the terminal, but not from the launcher. All the other apps work like a charm, just not Firefox. How can I fix this?
3
votes
1answer
2k views

Sudo is also user login password - why? how to change?

When installing Ubuntu I can create a user with an encrypted folder, what I always do. Now after the installation the login password for this user is also the sudo password. Is that how it should be? ...
1
vote
1answer
3k views

How can I fix “dpkg: error: parsing file”?

... and what is sudo and where/how would I type the scripts I've seen in some related answers? Yes I am very new to Linux, and am using Ubuntu 12.04 LTS. All updates are failing with ...
0
votes
1answer
678 views

Cannot undo sudo chmod 655 /

I've accidentally run 'sudo chmod 655 /', and now I cannot undo this operation again because I cannot access sudo anymore. I'd actually wanted the permission to be set to 755. Is there any way I can ...
61
votes
7answers
6k views

What does `!!` mean in `sudo !!`?

I am a user of Ubuntu with not much experience and I have been using sudo. What does sudo !! do and how?
15
votes
4answers
9k views

Setting TeX Live path for root

I have installed TeX Live 2011 vanilla and I have trouble setting the TeX Live path for root (in Ubuntu 11.10). The problem is that when I run sudo tlmgr I get: sudo: tlmgr: command not found To ...
11
votes
3answers
29k views

Adding NOPASSWD in /etc/sudoers doesn't work

On 14.04 here. I SSHed into my machine, added the following line to /etc/sudoers: myuser ALL=NOPASSWD: ALL And then tried running: sudo mkdir /etc/blah ...and I'm being asked for my password. ...
33
votes
6answers
6k views

What's wrong with using sudo?

In a comment here I've been told that unnecessarily using sudo should be avoided. While it wasn't needed in that particular case, I don't see any harm in using it. I think that when executing trivial ...
9
votes
4answers
2k views

Why does echoing these parameters with sudo not work? [duplicate]

Possible Duplicate: sudo & redirect output These are suggestions given by powertop to save energy: echo 1500 > /proc/sys/vm/dirty_writeback_centisecs echo 1 > ...
55
votes
7answers
5k views

Can sudo be reinstalled after being removed?

This seems to be a chicken-egg problem. The most common task using sudo is installing and removing software. sudo apt-get purge <appname> But sudo itself can be removed. sudo apt-get purge ...
36
votes
3answers
201k views

Sudoers file, enable NOPASSWD for user, all commands

Preface This is a fairly complex question related to the Sudoers file and the sudo command in general. NOTE: I have made these changes on a dedicated machine running Ubuntu Desktop 13.04, that I use ...
21
votes
4answers
54k views

sudo: source: command not found

I've been updating some of the default profile for bash, and saw from the tutorials I was following that I could reload the new profile with the new environment settings by using: source ...
17
votes
6answers
46k views

How can I fix broken sudo - sudo: parse error in /etc/sudoers near line 23?

I am getting this error: sudo: parse error in /etc/sudoers near line 23 sudo: no valid sudoers sources found, quitting sudo: unable to initialize policy plugin I was trying to disable password ...
6
votes
1answer
11k views

how to shutdown a linux machine, including the root password, in 1 line?

How do you include the root password, say for shutting down an ubuntu machine? like, sudo shutdown now is it possible to include the password on this 1 line? like an extra parameter? reason for ...
6
votes
2answers
14k views

Run apt-get without sudo

This might be a very naive question, but I wanted to know how I could give multiple users access to a single computer without making them root users. How would I give them limitted sudo access such ...
22
votes
1answer
25k views

Remove sudo privileges from a user (without deleting the user)

If you give a user sudo privileges how can I remove the sudo privileges and make the user become just a regular user? I used: sudo adduser username sudo Now I've changed my mind.
13
votes
2answers
41k views

sudo: unable to resolve host ubuntu-server [duplicate]

I have a problem with sudo. Every time when I trying to use sudo I got this problem: sudo: unable to resolve host ubuntu-server My /etc/hosts file: 127.0.0.1 localhost 127.0.1.1 ...
3
votes
1answer
7k views

Simple file doesn't run (command not found!)

Here in the screen shot, there is a window and terminal open. I am running on Ubuntu 10.04(kernel 2.6) LTS 64bit LiveCD session, and trying to run testDisk to recover my another formatted ...
15
votes
4answers
9k views

What is the functional difference between sudo su and sudo -i?

Why is one preferred over the other in this example? sudo su echo "options iwlwifi 11n_disable=1" >> /etc/modprobe.d/iwlwifi.conf exit Please provide links to Ubuntu documentation.
11
votes
3answers
15k views

Save an edited file in nano, but no permissions

I edited a file in /etc/ that I want to save, but forgot to open it using sudo. I remember there was a command to save such a file in vi, and want to know if there is any such way to do it in nano? ...
5
votes
6answers
30k views

Add AD Domain user to sudoers from the command line

I'm setting up an Ubuntu 11.04 server VM for use as a database server. It would make everyone's lives easier if we could have folks login using windows credentials and perhaps even make the machine ...
5
votes
5answers
11k views

Always Sudo Privileges

I've searched for this, and the answer is probably in a million places on the 'net, but I can't find it... How do you give your account root privileges in Linux so that you don't need to sudo every ...
4
votes
2answers
5k views

Why does sudo not add root's PATH with Ubuntu 12.04?

I've recently upgraded my server to Ubuntu Server 12.04. Previously it was running 11.04. Ever since then I've been having trouble carrying out root user commands through sudo. An example of this ...
4
votes
2answers
2k views

Problem installing ruby and gems

I just installed ruby using apt-get with the following command: sudo apt-get install ruby1.9.1-full But when I try to do sudo gem install ... it says that I have not installed gems and that I shoud ...
1
vote
1answer
2k views

Any way to get sublime text to save settings files without running as sudo

I installed Sublime Text 2 the following way, but what I do not like about it is that I have to run it as sudo to save the user settings files. Any ways around this? Thanks, Colin sudo ...
16
votes
9answers
22k views

How to run an Application as another user?

I use krusader for file management stuff. the problem is that apache's DocumentRoot should be under chown www-data:www-data /path/to/www. so using krusader (which is run under my account) I've not ...
9
votes
3answers
23k views

No password prompt at sudo command

Whenever I issue command sudo apt-get install ** it does not ask for password, not in my admin user too. How to make it prompt for password? My sudoer : ubuntu:~$ sudo cat /etc/sudoers # # This ...
7
votes
3answers
5k views

How to run a Desktop graphical application just once under sudo?

For example, I'm trying to run Archive Manager from Ubuntu Desktop (10.04) under sudo otherwise it won't let me extract a Software Development Kit into /usr/local Update: I don't want sudo to be a ...
3
votes
3answers
1k views

How to make sudo remember my password and how to add an application to startup

I guess this should be a simple thing for ubuntu users out there. I have two questions. Whenever I need to run some command that requires permission from root, I run as sudo followed by that ...