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

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0
votes
2answers
608 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, ...
9
votes
1answer
37k 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
627 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
13k 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, ...
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 ...
1
vote
5answers
4k views

changed /etc permission in oneiric (ubuntu11.10) by using “sudo chmod 665 /etc” cant use sudo now

I screwed up big time. I changed the permission of /etc in ubuntu 11.10 by using following command sudo chmod 665 /etc now when ever i try to use sudo it gives the following error: sudo: can't ...
7
votes
2answers
5k 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
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? ...
3
votes
2answers
4k views

How can I re-instate my admin privileges?

I am running 12.04 LTS. It's a pretty default installation and is the only OS on this machine. I have two users one has administrator rights the other does not. I accidentally removed administrator ...
1
vote
2answers
3k views

allowing user to run systemctl/systemd services without password

I want the default user, ubuntu to be able to run a specific service without being prompted for a password. Specifically systemctl restart unicorn_my_app.service. Have followed the instructions here ...
1
vote
2answers
383 views

Specify password for sudo in script

I am making a script that will update my system (and do some other things, but that doesn't matter). I want the script to run sudo apt-get update and sudo apt-get dist-upgrade --yes automatically. I ...
0
votes
1answer
226 views

error in running bash script as root

I have a simple shutdown script which i want to run as root shutdown -h +30; echo "succesfull"; I have followed these answer1,2 to make my script root. first I run this command sudo chown root....
0
votes
1answer
708 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 ...
42
votes
2answers
33k views

after upgrade gdb won't attach to process

I just recently upgraded from 10.04 to 11.04 and gdb won't allow me to attach to processes anymore I get the error Attaching to process 10144 Could not attach to process. If your uid matches ...
61
votes
7answers
7k 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?
55
votes
3answers
270k views

I want to copy a directory from one place to another via the command line

I want to copy a directory from one place to another folder. sudo cp is the command, but after that what should I type? The destination or source first?
20
votes
8answers
48k views

How do I fix a “E: The method driver /usr/lib/apt/methods/http could not be found.” error?

I tried updating my packages from the terminal and this is what I got: $ sudo apt-get update E: The method driver /usr/lib/apt/methods/http could not be found. E: The method driver /usr/lib/apt/...
16
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 ...
21
votes
3answers
75k views

How to give nopasswd access to multiple commands via sudoers?

Below is what I know: I have to add this below line in sudoers file to give rights to the user for particular task. user_name ALL=NOPASSWD: /usr/bin/apt-get install In this case I want to give ...
35
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 ...
22
votes
4answers
58k 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 /etc/bash....
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 > /sys/module/...
45
votes
3answers
222k 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 ...
16
votes
2answers
10k views

What does sudo service do?

As far as I know and it seems that other people have the same opinion sudo is a command that executes something with administrative privileges. However when I run rcconf I can see this line: [*] ...
10
votes
1answer
48k 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): Gtk-...
6
votes
1answer
12k 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 ...
23
votes
1answer
28k 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.
16
votes
4answers
10k 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.
10
votes
2answers
16k views

Enable passwordless sudo as a specific user

I have two users on my system: itsadok, my main user, and elasticsearch, a user with a different ulimit for running ElasticSearch. I would like to be able to run stuff as the secondary user without ...
7
votes
1answer
5k 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 ...
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 partition....
16
votes
9answers
23k 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 ...
11
votes
3answers
16k 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
5answers
12k 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 ...
5
votes
6answers
32k 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 ...
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 ...
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 ...
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 add-apt-...
0
votes
1answer
958 views

What is the difference between sudo X and running X as root?

My question is asking regarding a specific observation that I would like to understand. I just tried to install the package rJava in R and failed even though I prefaced the installation as suggested ...
9
votes
3answers
24k 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 ...
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 ...
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 command....
2
votes
2answers
13k views

How do I deal with 'sudoers.so must be only be writable by owner'?

Whenever I try to install or remove something using terminal it gives the following error message: bluebird@bluebird:~$ sudo apt-get update sudo: /usr/lib/sudo/sudoers.so must be only be writable by ...
2
votes
2answers
10k views

sudo must be owned by uid 0 and have the setuid bit set

I am trying to run the following command: d@d-Aspire-M5 ~ $ echo "My username is: `whoami`" My username is: d d@d-Aspire-M5 ~ $ sudo chown -R `whoami` /usr/local/lib/node_modules sudo: /usr/bin/sudo ...
2
votes
3answers
1k views

Ways to run Nautilus with elevated privileges [duplicate]

What are the differences between the following ways to run Nautilus with elevated privileges: a) sudo nautilus b) gksu nautilus c) gksudo nautilus Which should I use?
1
vote
3answers
8k 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 /etc/init....