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
1answer
89 views

Program interface is ugly when started by script

I am starting Qt-Linguist in a bash script via sudo linguist-qt4 $PathToParentDir/translate_$lang.ts I could also use gksu instead of sudo but this would add more dependencies since most people don'...
0
votes
1answer
499 views

Adding users and groups

I am new to this and I am trying to create users and groups. So far, I have the following: sudo adduser Alice sudo adduser Bob sudo adduser Mike sudo adduser Bill #create groups sudo groupadd ...
1
vote
2answers
2k views

sudo doesn't ask for password anymore

I did not notice it but it has been quite a while since I entered the password for using sudo priviledges. Here is my /etc/sudoers file: # # This file MUST be edited with the 'visudo' command as ...
3
votes
1answer
13k views

Can't save files in /var/www using lamp installed with tasksel

I just installed lamp with tasksel and it works. But inside /var/www I can create files only with sudo from terminal, I don't know why. In another Ubuntu installation I didn't have such problem. I ...
2
votes
2answers
9k views

How can I change owner back to root? [duplicate]

So, I did a stupid thing... I was installing some software (Java SE 7, if you must know) from a tarball, and I got tired of using sudo, so I went and changed the owner of my /usr directory to myself. ...
0
votes
0answers
28 views

How to create user with sudo privileges from shell script? [duplicate]

I am writing a shell script that will create a user that I will use for deployments. I want to add that user to be able to use sudo without a password. How can I create this user from a shell script ...
-1
votes
3answers
352 views

Lost/Reset Password [duplicate]

Trying to reset password. At root@ubuntu:~#, I enter passwd username and press enter. I then get Enter new UNIX password:. At this point I can not use the keyboard to enter anything. If I press ...
5
votes
1answer
2k views

What does this code do if entered in a terminal?

sudo add-apt-repository ppa:langdalepl/gvfs-mtp sudo apt-get update Then, launch Software Updater (previously known as Update Manager) and install the available updates. After you update everything ...
0
votes
0answers
41 views

How to bypass sudo when it asks for password & when you don't have a password to begin with? [duplicate]

I removed my Password on my login account(I'm not admin). When I go to terminal to install something using sudo, it asks for a password. Not the admin's password but my account's password but I don't ...
0
votes
2answers
449 views

can't use sudo but only su

As root, I created a new user and added to sudo group with adduser myuser sudo but when I try to sudo something I got the Sorry, try again. error. The curious thing is that i can use su without ...
2
votes
2answers
7k views

No root privileges when using GUI

So I'm logged in as the user 'Shannon', but can't gain root access through the GUI when I'm prompted to install a program for example. However using sudo su, type in the root password, gain access ...
0
votes
1answer
839 views

How do I allow anyone to view my files on my network?

I have created a little server on Ubuntu 13.10, I've shared certain folders using SAMBA. On my WINDOWS PC my username and password is the same as the username and password of the server, so I'm ...
8
votes
2answers
13k views

How do I prevent git from requiring sudo on every git command

I created a directory /var/www to store my web apps clone in. When I initially cloned the app from github it required me to use sudo and every time I do a git pull it's requiring sudo. I'm running ...
1
vote
0answers
469 views

sudo -Hu rsyncuser rsync --progress -avz /source/path/ host.org:/destination/path/ - why does it change directory permissions?

here is my setup: on my source machine i created user rsyncuser with reading and writing permissions in /source/path on my destination machine i created user rsyncuser with reading and writing ...
4
votes
3answers
14k views

Not able to install *.run file in Ubuntu? [duplicate]

I am newbie with Ubuntu and I am using Ubuntu 12.04.3 LTS version inside Windows using WUBI. I have to install few softwares in Ubuntu which are as follow: MPLAB X IDE version 1.90 XC8 Compiler and ...
4
votes
1answer
27k views

Trying to update but not enough space on boot (answer here) [duplicate]

The error message I get suggests "sudo apt-get clean" I try running it but nothing happens. Just get back to the prompt. Is there any other terminal commands I should try to clean temporary files ...
0
votes
1answer
2k views

why sudo gem install fails but gem install succeeds?

I simply do sudo gem install sqlite3 and have response: sudo: gem: command not found Then I do gem install sqlite3 and it works. Where is the problem with sudo ?
1
vote
1answer
147 views

help cannot change inotify watch number because file cant be over written

so I'm trying to start using lsyncd for a more up to date backup system. the problem that i have run into is that the directory that i have to backup contains more than 250,000 items and i would like ...
30
votes
4answers
23k views

How to get out of “sudo -s” command in Terminal?

I entered sudo -s command in terminal, and the it changed from shameek@shameek-K55VD:~$ to root@shameek-K55VD:~#. Now when I click on the close terminal window icon it says, "There is still ...
0
votes
2answers
3k views

What is the answer to “are you root” when installing packages? [duplicate]

What is the answer to "are you root" in Ubuntu 12.10. I was installing the restricted extras for the 12.10 when I got this message after typing my password. I typed yes and now all I see are y in the ...
1
vote
1answer
5k 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
vote
2answers
10k views

Unable to install xampp in ubuntu 13.04

I am installing xampp in ubuntu 13.04, but while installing the xampp.. when i try to extract the file .. it shows the following message sudo tar xvfz xampp-linux-1.8.1.tar.gz -C /...
0
votes
1answer
107 views

How to modify and give acces to user in sudo file

when I am trying to install vim using sudo apt-get install vim, its showing sudoers file error. Please help me out.
4
votes
2answers
11k views

Won't execute terminal commands

I have been using Ubuntu 12.04 for quite a while and have never had a problem come at me out of the blue like this. I'm trying to install python 3.2 on my Ubuntu system and every time I run the code ...
6
votes
2answers
3k views

Why doesn't $HOME change if I use sudo?

I expected the -H option to give me the target user's environment. nbest@geo:~$ sudo -H -u tanum echo $HOME /home/nbest nbest@geo:~$ sudo -u tanum echo $HOME /home/nbest nbest@geo:~$ sudo -i -u ...
0
votes
2answers
61 views

New User - Installing Applications ie Android SDK - Where To ? ( Equivalent of Program Files ? )

it is taking me some time to find my way around Ubuntu and while I know I can Sudo an App like PCManFM to create directories I do not know where the best place to create a folder for the Android SDK ( ...
0
votes
1answer
45 views

Having issue with creating a script

Trying to create a simple script but I'm not having any luck. I created a file with nano, saved it. Then: sudo chmod +x filename The script is: #!/bin/bash #script to restart networking after ...
2
votes
1answer
171 views

How to clean up aftermath from rookie ubuntu command

Here are the commands I regretfully run: sudo chgrp root /usr/bin sudo chgrp root /usr/local I had recently added a user to root group and because my user still did not have write permissions, I ...
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.
0
votes
1answer
4k views

Cannot create a new document in /var/www [duplicate]

I'm unable to create a new document in /var/www/ I followed this tutorial :- How to avoid using sudo when working in /var/www? and did as suggested, but still I'm unable to make a new document. Any ...
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 ...
2
votes
1answer
143 views

Why my gnome terminal is set to root by default?

When I try to open up a new terminal in Ubuntu to do some operations, it always defaults to an admin based terminal with [sudo] password for xxxxxxxx: $ I need a regular terminal. How do I do this? I ...
0
votes
0answers
26 views

How to get back root access? (Rootrechte bekommen?) [duplicate]

Translation: I use Xubuntu and have deleted my Admin Account. After I had created a new one which also had administrative rights. I did that becauseof some sound problems which are now gone. Now the ...
0
votes
1answer
116 views

sudoing my own bash scripting

Okay, so I have my scripts in ~/bin/, and they are added to the path normally. However, when I prefix them with sudo, they are not in the path. I figure this is because they're not in the path for ...
2
votes
1answer
410 views

Difference between running command as sudo and running command as root?

I know this question has been covered in many contexts but I'm unable to understand and predict when a user added to the sudoers file will not have permission to do something when prepending sudo to a ...
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.
0
votes
1answer
702 views

.sh file is not running changing directory command

my contents of .sh file are sudo -i cd /home/madhu131313/Documents/ I run it ,then it asked for root password, it changed to root, but it doesn't execute the changing directory
0
votes
3answers
9k views

sudo pecl command not found

I'm using ubuntu 12.04 I installed php pear using this command sudo apt-get install php-pear php5-dev I got this results Reading package lists... Done Building dependency tree Reading ...
4
votes
1answer
234 views

su not properly logged when using byobu [closed]

We're seeing varations in our logs when a user su's from a byobu session vs. a regular shell session. When using a regular session the lines in /var/log/auth.log look like this: root@delta:/var/log# ...
1
vote
1answer
1k views

cannot start graphical programs with sudo

i have a fresh ubuntu 12.04 installation with encrypted home partition. i copied over my home folder from another computer. when i try to launch graphical programs via sudo i get errors like the ...
0
votes
2answers
4k views

Sudo hangs without prompting for password

I just did a fresh install of Ubuntu and now when I try to use sudo in the terminal emulator, it just hangs there without even asking me for a password. If I switch to the terminal (Ctrl + Alt + F1) ...
0
votes
1answer
2k views

Run a Python Script on Login with Sudo

I am setting up a machine that's sole purpose is to run a specific python application that uses a curses ui. That being said, there are some aspects of the application that require it to be run as su. ...
1
vote
1answer
8k views

What actually yum does? [closed]

I've seen yum used as a command for Cento OS Red Hat Linux platform. But, I tried with sudo too and it works. I want to know then what yum actually does. I am just curious to know.
1
vote
2answers
2k views

How can I delete everything off of my SSD hard drive, or namely the grub loader?

I'm currently using a live CD and I am attempting to delete everything off of my harddrive. So, I've used the command sudo nautilus and attempted to delete everything off of my SSD. However, I cannot ...
10
votes
1answer
3k views

How to make 'sudo' grab the password from a file?

I want to run a command that requires the sudo password say: sudo apt-get update Isn't this supposed to work (I have stored the password in a normal text file passwd.txt): sudo apt-get update <~...
1
vote
2answers
3k views

edit text file with sudo via ssh and script

I want to modify /etc/hosts (and later also hostname) via a script and ssh. So I'm logged in via ssh and this works: sudo nano /etc/hosts It shows the remote hosts file in nano. However I was ...
2
votes
2answers
3k views

I can't find my user password or change it

In the terminal, whenever I try to perform sudo, Ubuntu asks my password and it always says I typed it in wrong. I tried changing the password as root, but then it says password unchanged. My user ...
3
votes
1answer
1k views

Why are my LDAP logins slow?

I have been running this server with LDAP for about 6 months. The logins have always been fast. However, starting this week logins are taking 1-2 minutes to complete. This include ssh, sudo su, and ...
1
vote
2answers
12k views

“dpkg: error: requested operation requires superuser privilege”. Cannot remove all configuration info from removed packages, sudo doesn't work

I want to run this command (see section 4 from here https://help.ubuntu.com/community/AptGet/Howto#Removal_commands): dpkg -l | grep '^rc' | awk '{print $2}' | xargs dpkg --purge I use sudo at the ...
2
votes
4answers
22k views

What is 'sudo tar -xzf'? Why it is used?

I need to know the extensions of xzf and its usage. Is it necessarily to be used in installing a software? sudo tar -xzf utorrent-server-3.0-ubuntu-10.10-27079.tar.gz Why this is used?