I'm trying to run an executable file as sudo using terminal at startup but I'm having some issues. I couldn't find the solution in other answers, so I opened up this one. I'm using a Raspberry Pi 3 B+ with the Raspbian Stretch with desktop and recommended software downloaded from the official Raspberry Pi website.
I have an executable that needs to be run with sudo (I use the pigpio library to communicate with another hardware through SPI and if I don't run the executable with sudo, the pigpio doesn't work). What I'm trying to achieve is that when the Pi finishes to startup the graphical interface, it would run the LXTerminal and execute "sudo home/pi/myfolder/myprogram".
I've tried:
sudo nano ~/.config/autostart/myprogram.desktop
[Desktop Entry]
Encoding=UTF-8
Type=Application
Name=myprogram
Exec=lxterminal -e "sudo /home/pi/myfolder/myprogram"
Terminal=true
sudo chmod a+r ~/.config/autostart/myprogram.desktop
Also tried:
sudo nano /etc/xdg/lxsession/LXDE-pi/autostart
lxterminal --command="sudo /home/pi/myfolder/myprogram"
Both methods did open the lxterminal at startup, but didn't executed my program.
Can anyone help me out?
I found the solution, so I'm gonna post it here in case someone else needs it. If it already exists in somewhere else around here, feel free to tag it as duplicated.
The solution that worked for me was this:
sudo nano ~/.config/autostart/myprogram.desktop
[Desktop Entry]
Encoding=UTF-8
Type=Application
Name=myprogram
Exec=lxterminal -e bash -c 'sudo /home/pi/myfolder/myprogram;$SHELL'
Terminal=true
sudo chmod a+r ~/.config/autostart/myprogram.desktop
The $SHELL makes the terminal stay open after myprogram ends its execution. If you don't need this feature, just exclude the ;$SHELL part of the code above.
Related
I have a Ubuntu 20.04 running within WSL 2 on a Windows 10 computer.
Every time I login to Ubuntu, I had to manually execute these four line by pasting it one by one in the Windows 10 Terminal.
sudo apt-get update && sudo apt-get install -yqq daemonize dbus-user-session fontconfig
sudo daemonize /usr/bin/unshare --fork --pid --mount-proc /lib/systemd/systemd --system-unit=basic.target
exec sudo nsenter -t $(pidof systemd) -a su - $LOGNAME
sudo /etc/init.d/xrdp start
May I know if there is a way to skip this manual process?
You can use .bashrc file to execute commands whenever you open the terminal. It should be located at $HOME directory.
cd $HOME
nano .bashrc
place your commands at the end of the file, press ctl+x then y to save.
I am currently hosting a minecraft server on ubuntu server 18.04 LTS. I have a .sh script to start the server's java file, and I would like to run it at startup so that the minecraft server starts when the physical server boots. I wished to do this via /etc/rc.local. However, I do not see rc.local in that location.
Is it in a different location for this version of ubuntu, or is there an entirely different method I should use to run this .sh at startup?
There is no "/etc/rc.local" file on Ubuntu 18.04, but you can create it.
Create the file with a text editor:
sudo nano /etc/rc.local
Paste the following lines and replace "COMMANDS" with the commands to be executed at system startup:
#!/bin/sh -e
COMMANDS
exit 0
Add the execute permission on the file:
chmod +x /etc/rc.local
Set a crontab for this
Make sure the file is executable:
chmod +x /path_to_you_file/your_file/file.sh
To edit crontab file:
crontab -e
Then add this:
#reboot /path_to_you_file/your_file/file.sh
rc.local is disabled by default.
Enable by using this command
sudo systemctl enable rc-local.service
Using a ubuntu 16.04 what I do is :
Download the .sh script using wget https://gist.githubusercontent.com/...
Turn the .sh file executable sudo chmod guo+x sysInit.sh
Execute the code through sudo ./sysInit.sh
I was wondering if it is possible to run the code directly from the web.
Would be something like: sudo ./ https://gist.githubusercontent.com/....
Is it possible to do that?
You can use cUrl to download and run your script. I don't think its installed by default on Ubuntu so you'll have to sudo apt-get install curl first if you want to use it. To download and run your script with sudo just run
curl -sL https://gist.githubusercontent.com/blah.sh | sudo sh
Be warned this is very risky and not advised for security reasons. See this related question why-using-curl-sudo-sh-is-not-advised
Yes, it is possible using curl and piping the result to sh.
Try the following command.
curl https://url-to-your-script-file/scriptFile.sh | sh
No, sudo only works from a command line prompt in a shell
I am wanting to detect in a shell script if a command I am going to run via sudo can in fact run via sudo. On newer versions of sudo I can do sudo -l "command" and this gives me exactly the result I want.
However, some of the systems have an old version of sudo in which -l "Command" isn't available. Another way I was thinking about doing it was to just try running the command then see if sudo prompted for the password. However, I do not see an easy way to do this as sudo writes the password prompt to the TTY and not via stdout.
Does anyone else know of a straight forward way to do this?
I should also mention "expect" doesn't seem to be available on the systems with the older sudo revisions, either.
Just for reference the "difficult" version of sudo appears to version 1.6.8
On Linux, on (at least) Debian-like systems, you can have a look at /etc/sudoers (and the optional /etc/sudoers.d/* files, if created, and included in the main /etc/sudoers) that give (among others)
the search path to where (which dir) a command can be issued
the sudo user (root) privileges
groups who can use sudo and their privileges
This is the sudoers man page for more information.
if you're only wanting to check that a password is required to run a command then you should be able to run:
$ sudo -n <command>
E.g.
$ sudo -n echo
sudo: sorry, a password is required to run sudo
I have searched on how to run a script file on Mac but nothing works for me.
Every time I tried sudo script-name the terminal responds with
-bash: /Users/macuser/Desktop/tesseract-3.01: is a directory
The file I want to run is called start and it's located in tesseract-3.01 directory on the desktop.
simply do
/Users/macuser/Desktop/tesseract-3.01/start
or if it's actually called start.sh
/Users/macuser/Desktop/tesseract-3.01/start.sh
you might also want to do
chmod +x /Users/macuser/Desktop/tesseract-3.01/start.sh
to change the script to be executable before you run the script
sudo /Users/macuser/Desktop/tesseract-3.01/start
You have to indicate the script name, but it looks like you were only specifying the directory.
You could also cd to the directory and then run it like so:
cd /Users/macuser/Desktop/tesseract-3.01
sudo ./start
Try
sudo ./Users/macuser/Desktop/tesseract-3.01/start.sh
or
cd /Users/macuser/Desktop/tesseract-3.01
then
sudo ./start.sh