sudo - Execute a command with superuser privileges.

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1
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1answer
106 views

Run specific command from .desktop with root

I have a program that I wish all users of my linux install to be able to run with root privileges from a .desktop file. Currently in my .desktop file I have: Exec=gksu command but this of cause ...
6
votes
1answer
161 views

First sudo always slow

The first sudo I enter on my Ubuntu 14.04 server is always slow. The password prompt displays immediately, but after I press enter it takes about 10-15 seconds until the output is printed. All sudo ...
2
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2answers
65 views

does sudo always set process limits to the numbers from /etc/security/limits.d?

I have observed the following behavior: [ec2-user@ip-10-66-68-55 ~]$ uname -a Linux ip-10-66-68-55 3.4.103-76.114.amzn1.x86_64 #1 SMP Fri Sep 12 00:57:39 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux ...
4
votes
2answers
909 views

How to get the name of the user who executed a bash script as sudo?

I want to create a bash script that must be executed with sudo but should take into account the name of the non-sudo user who executed it. So if user bob runs sudo ./myscript.sh I would like ...
6
votes
5answers
686 views

Set sudo password differently from login one

As a privileged user I am trying to set the sudo password to another then the one used at login. I have done some research but have not found an answer. Does sudo support that kind of configuration? ...
2
votes
4answers
9k views

How to login as root from Bash and do stuff

This is my simple bash: cat test.sh #!/bin/bash echo "hello" su - root -c /path/to/script.sh <<EOF password EOF whoami echo "good bye" But I get this error: ...
1
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0answers
12 views

How to resolve super user password problem [duplicate]

My super user password no longer works. My own fault I believe, messing around with usermod. Is there a way to resolve this? Using Ubuntu 14.04
4
votes
1answer
182 views

Keeping sudo authentication with gnome-terminal

Can sudo sessions be shared across tabs of gnome-terminal, so that once I use sudo in one tab, I won't have to re-enter my password every time I open another tab and use sudo?
0
votes
1answer
52 views

Open a new bash with sudo powers without reentering the password [duplicate]

I find very useful to have more terminal tabs in different current working directories. But if I need sudo privileges I need to reenter the password for every shell. Is there not a way to extend the ...
3
votes
1answer
56 views

Run command with sudo by default

Just one brick missing in my current wall. Feels to me like it should be easy to solve, nevertheless I got some explaining for you to do to make you understand what I want to achieve. I need a linux ...
0
votes
1answer
46 views

Why does “redirect to a file” is executed as user, even with sudo? [duplicate]

I often encouter this problem and it really bugs me on why it is so. So let's take this example into account : [me@localhost:~]$ sudo command > /some/file.log As far as I know, this will not ...
0
votes
1answer
37 views

Sudo requiring password

On a RHEL server I would like to let a user run a command as root without a password: # uname -a Linux foo.com 2.6.32-220.38.1.el6.x86_64 #1 SMP Wed May 15 08:34:56 EDT 2013 x86_64 x86_64 x86_64 ...
5
votes
2answers
3k views

Graphically ask for password in a bash script and retain default sudo timeout setting

The sudo -A (SUDO_ASKPASS) option apparently causes sudo to lose the timeout (e.g., timestamp_timeout) setting. I want to use the sudo -A option but I want to retain the default timeout (e.g., 15 ...
1
vote
2answers
161 views

How to use sudo to delete the contents of a directory

I have a legitimate need to empty a directory to which my account does not have access (it is a cache directory used by an application, and is owned by the account that runs the application.) My ...
9
votes
5answers
15k views

Can a linux user change their password without knowing the current password?

I'm setting up a few ubuntu boxes, and using opscode's chef as a configuration tool. It would be fairly easy to install public keys for each user on each of these servers, and disable password ...
3
votes
3answers
8k views

Difference between “make install” and “sudo make install”

Sometimes I encounter problems with using make install which gives me a permission denied error when writing to some folders. So instinctively I use sudo make install. Will this introduce additional ...
1
vote
2answers
134 views

Add test user to the sudoers file, to run ifconfig

I would like to see the ifconfig file with test user (under Linux Debian) that's why I have used the sudo task, but the terminal said that: test is not in the sudoers file. How can I take the test ...
0
votes
1answer
162 views

Allow all users to call sudo -l

On my debian server, when a user who does not have any rights in the sudoers file or any include dirs, calls sudo -l, he gets the standard "responsibility header" and is prompted for his password. Is ...
1
vote
1answer
245 views

What does this command “sudo pip3 install name-of-the-file.whl” do?

I'm quite a newbie using the Bash scripting language, but I'm trying to learn it a little bit more. I know that sudo is a command used for administrators' tasks, such that installing or uninstalling ...
1
vote
0answers
33 views

Is it safe to disable password for a user, if it only uses SSH key login?

We want to remove the password usage on a UNIX system. The users should only log in with SSH key. Not password. So their password field in the /etc/shadow file will be "*" and set their password to ...
3
votes
2answers
27k views

How to properly configure sudoers file, on debian wheezy?

I have seen many blog posts that say, it is enough to do aptitude install sudo su root adduser USERNAME sudo But that only protects aptitude, in other words: aptitude install sendmail will ask ...
5
votes
3answers
745 views

Why does “$ sudo echo 'yo' ” work even though echo is a shell built in function? [duplicate]

I understand that sudo cd /directory will return: sudo: cd: command not found because cd is a shell builtin and not a binary. But then, why does sudo echo 'this is a test' works fine? What ...
9
votes
2answers
2k views

Stay at same working directory when changing to sudo

When working on the command line, I often change to sudo using sudo -i. However, my working directory changes automatically to /root. I never want to go there; I want to stay where I was! How can I ...
7
votes
3answers
5k views

Why do some packages use 'make install' while other use 'sudo make install'

I recently installed LAME encoder on my server to convert wav to mp3 and that worked with './configure, make, make install; I then tried to install OGG encoder and that requires './configure, make, ...
6
votes
3answers
14k views

How to restrict to run commands in specific directory through SUDOERS?

I can configure sudo (via the sudoers file) to allow a user to run the chown and chmod commands on any file or directory in the system. However, I only want to grant a user permission to run these ...
2
votes
1answer
2k views

Call sudo from Jenkins

I have one build machine which has a user abc which is has limited sudo access. When I check out the source code and run my build script, it works fine. The build script contains sudo calls for which ...
5
votes
2answers
877 views

Why doesn't 'sudo bash && cd desktop' cd in to the desktop folder? [duplicate]

I have a folder with chmod 000 permissions on it with a lot of different stuff in, the way I get in is a start bash in sudo by running sudo bash. Why can't I do &&? I want to cd into the ...
0
votes
1answer
63 views

The “Sudo” Command are for debian-based, Linux-based distributions, right?

Let's say that I want to teach someone the command line but in the beginning, I only want to teach them the sudo commands. This means all the basic and useful command lines but using sudo. This ...
2
votes
3answers
837 views

What mechanism prevents any user from accessing any other user's files via root?

On a multi-user system, what protects against any user accessing any other users files via root? As context, the question is based on my understanding as follows: There are two commands related to ...
2
votes
3answers
3k views

How can I keep *all* environment vars for a specific command in sudo?

I have a script that sets several environment variables and then finally calls another script using sudo. The script run with sudo must be able to pick up those variables, and I'm not always going to ...
2
votes
2answers
115 views

What is my sudo password?

When installing things I am sometimes asked for my sudo password. I don't remember ever having one or setting one. But I do know my su password which has always worked fine for me. It is not the same ...
0
votes
2answers
462 views

Change sudo and root password on Debian

I have sudo access, but I don't remember the sudo or root password; how do I change it from my limited account using sudo?
7
votes
1answer
11k views

Why does cron silently fail to run sudo stuff in my script?

I have a script run from a non-privileged users' crontab that invokes some commands using sudo. Except it doesn't. The script runs fine but the sudo'ed commands silently fail. The script runs ...
0
votes
2answers
64 views

I get an error whenever I try to add myself to sudoers

So I installed Debian yesterday, and I tried to make myself a sudoer so that I don't have to be root every time I try to install something. However, this always happens when I add my user to the sudo ...
1
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0answers
132 views

gksu -S ask for password only once even when set to three times in sudo configuration

I have a problem with gksu command. It always ask for password only once even when I set Defaults passwd_tries=3 in /etc/sudoers file. Command: $ gksu -S --debug ls No ask_pass set, using default! ...
1
vote
2answers
253 views

Gnome 3 - custom keyboard shortcut to run command as root?

My keyboard backlight function keys don't seem to work, so I've written a script to change the keyboard brightness, which must be run as root. It is invoked like so... sudo /usr/bin/local/backlight ...
1
vote
2answers
117 views

How to check if the “sudo” permission will be necessary to run a command?

Is there a way to determine easily whether I can read or write to/from a given file, or whether I will need to use "sudo" to do so? Running commands unnecessarily as sudo means that those files get ...
18
votes
2answers
2k views

How can I `alias sudo !!`?

I'm trying to set an alias for sudo !! in Bash. I tried alias sbb='sudo !!', but it interprets that as a literal !! and prints sudo: !!: command not found If I use double quotes, it substitutes ...
3
votes
5answers
326 views

How to allow authentication with `sudo` using an alternate password?

I have been given a long password by my company for my Ubuntu system. This password is cumbersome to enter when authenticating with sudo repeatedly. Can I authenticate with sudo using a password ...
5
votes
10answers
15k views

How to log commands within a “sudo su -”?

If I: [user@notebook ~] sudo echo 123456uu 123456uu [user@notebook ~] Then I can see that in the logs: [root@notebook /var/log] grep 123456uu * auth.log:Jan 9 17:01:51 notebook sudo: user : ...
7
votes
7answers
280 views

Emptying a file for root user does not work [duplicate]

I use below command to empty a file > file.txt It works perfectly fine! But there are some files with root user permissions. So I tried sudo > different-file.txt and I got below verbose ...
2
votes
1answer
249 views

Use sudo with ssh command and capturing stdout

I'm trying to run a command as root (via sudo) on a remote server, and capture stdout (but not stderr) into a file. eg. Something like this: ssh user@remote "cat /root/file.tar | gzip" > ...
2
votes
1answer
33 views

Why can I not do visual mode when using visudo?

I thought perhaps vim was in some compatibility mode of some sort. To make sure it was using vim instead of vi, I set the VISUAL environment variable but was still unable to get into visual mode ...
0
votes
1answer
122 views

Is it possible to set the users .gitconfig (for git config --global) dynamically?

I have the problem, that we login to the systems as our own users johndoe and then have to do a sudo su - root to be able to do administrative tasks. We have the system config files in a git ...
1
vote
1answer
121 views

Accidentally deleted /dev/tty, how to bring it back on debian7?

I am on debian 7 and accidentally delete /dev/tty so I cannot sudo su anymore. I can still ssh with my username however when I want to get root rights with sudo su I get following message: sudo: no ...
4
votes
1answer
208 views

scripting copy of remote root-owned files when 'PermitRootLogin no'

I'm setting up a cloud node (only ssh-accessible, GUIs deprecated, running Debian 7) with 'PermitRootLogin no' for security. For some applications I want to copy some root-owned config files from the ...
1
vote
2answers
236 views

How can I sudo su and change directory just after?

I would like to create an alias that does something like this: alias userYYY='sudo su userYYY; cd /a/path/that/only/userYYY/has/access' So then from my command line, I am logged in with a sudoer ...
2
votes
1answer
104 views

ssh as super user

I did the following mistake on a remote server : # sudo chmod 700 / Now no user but root can do anything. I can't even ssh as a normal user anymore, since I don't have permission to access bash. ...
0
votes
0answers
37 views

cant edit anything on xampp as sudo user [closed]

I’m new to Linux was an avid Windows user until recently trying on an old system seeing some major differences and converting, so I apologise if this question seems simple. I’m running the latest ...
7
votes
3answers
2k views

Once sudo su'd to root, is there a command to see my username?

I have sudo rights on a redhat box; once I've sudo su - to become root in a shell, are there any commands I can run to see what username I su'd FROM?