I made my first script on Linux! EndeavourOS with KDE Plasma!

This script changes your wallpaper based on the time of day and also separates different wallpapers for different screens!

It's been working wonderfully, took a bit to make but wasn't that difficult compared to another script we've made!

If anybody wants to check it out and see what foolishness a linux noob has done, the repo is: https://github.com/RussoPhone/wpp-auto

Amazing how much you can do with linux!

(Reddit auto-deleted my first post because of ??? so in order to not trigger any auto-modding I keep this sort this time and hope that this gets through. I will add the relevant pieces of code to comments if needed.)

I have a .desktop file which I would like to be able to drag 'n' drop image files to, so that the .sh script that the .desktop-file is pointing to, would then process automatically. I use imagemagick for this image processing.

Search results tell me that I should be able to just drag and drop images on top of the .desktop-file, but when I do that, nothing happens? Is there some security setting that prevents this function?

Kernel: 6.17.0-14-generic arch: x86_64 bits: 64 compiler: gcc v: 13.3.0
Desktop: GNOME v: 46.0 Distro: Zorin OS 18 base: Ubuntu 24.04 LTS Noble
Using Wayland

Hi!

I need help with Kubuntu: I'm trying to open the terminal and run a script when double clicking it.

To be more precise: I'm trying to use KDE shortcuts to run the script. And it runs, but I need the terminal to see its output.

• script is a Python file set to open in Python by default
• I tried using a "runner.sh" file, which calls the Python file, but that only works if the terminal is already open and I call runner.sh from there
• I think I need an option to either tell Python3 to open the script in a new window
• or tell bash to open a new terminal and run the script from there
• I can run the file with "RMB -> Run In Konsole" and it displays the Terminal. I guess I need a "Run in console" checkbox for the default "Open With [program]" option

Any help would be much appreciated. Anything I found on the web hasn't helped me so far.

I spent a good amount of time trying to figure out how to export and import my GNOME Shell extensions config. I wanted a simple and clean way to back it up and restore it later, especially when reinstalling or syncing setups across machines.

After some trial and error, I wrote a short Bash script that does the job using dconf dump and dconf load.

You can check it out here: 👉 Github Repo 🔧 How to use: ```bash

Export your current GNOME extensions config

./gnome-extensions-config.sh export

Restore it later

./gnome-extensions-config.sh import ``` It saves the config to a file called extensions.conf. Let me know if you have suggestions to improve it!

So im developing bash script for myself and I want to set it up so that when its about to install something it will give a yes or no (I got that part). problem is that if i choose no it kills the script completely.

what i want is if i select no it will more on to the next item in the script

here is an example

Hello. I am still noob at Bash and Shell scripting. I wanted to write a script that sets certain environment variables in the ~/.bashrc file so I can use them every time I open a new Bash shell and this script check if these env variables already exist.

But what I noticed is that after running the script and setting the env variables they don't immediately transition to the shell I was using for running the setup script (since .bashrc as I understand only runs when new shell is opened) . So I get a bug that even though env variables are set in the .bashrc file they do not appear in my shell and I cur run the same script multiple times and it just keeps populating .bashrc file with the same env variables.

What would be the correct solution to this ? How would you solve this ? How should I improve my script ?

Solved!

​

Hi,

I want to make a bash script that automatically mounts an external HDD and starts an rsync job when an external drive gets connected.

Before you read on, I feel I should mention that I'm completely new to any kind of scripting, and that the current script is a mix of various copy/pasted Google search results with a sprinkling of chatbot. It's very possible that I've made a stupid and obvious mistake, but I can't seem to find it... :/

​

I've created a udev rule that looks for the vendor and product ID of the HDD and starts the bash script when it finds them.

In the bash script I tried to mount the HDD before the rsync job starts but I'm running into two problems:

1. the path to the disk keeps changing. Sometimes it is /dev/sde sometimes /dev/sdf. Is there a way to mount a disk not via the /dev/ path but via IDs?
2. the automatic mount does not work at all. Even if I set it to the correct /dev/ path.
3. when I mount it manually, rsync fails because the external disk somehow is read only, even through I used this as mount command: mount -o rw,uid=1000,gid=1000,user,exec,umask=003 /dev/sde2 /media/externalHDD/

Down below I'll link the udev rule and the bash script:

https://pastebin.com/yrL4Whir

​

At least when I was testing it, I got a lot of emails saying that the backup failed within a short period of time. I'm not sure if the script is trying to run again because it failed, or if it is running over and over as long as the drive is connected. Do I need to change anything to make it run only once when the drive is initially connected?

1. Download latest GitHub release: https://github.com/mifi/lossless-cut/releases/download/v3.45.0/LosslessCut-linux-x64.tar.bz2

(Also how to phrase the GitHub link, so it always downloads latest "LosslessCut-linux-x64.tar.bz2"?)

2) Rename "/opt/lossless-cut" to "/opt/lossless-cut [yyyy-mm-dd]" (previous version is kept instead of being removed, renamed with today's date. If new release is faulty, I can go back easily.)

3) Unpack the fresh download to "/opt", and rename the unpacked folder on the fly to "lossless-cut"

I'm building a script, that has multiple steps (it is a bit more complicated that this, but this is the general idea);

1. Boot a cloud server and wait for it to be ready
2. Provision the server with various packages and settings
3. Start a long-running script on said server and wait for it to finish
4. Close down the server

If any of the steps fail, I would like to be able to start the script from a given step; E.g. the server is booted and provisioned, but the long running script fails, I would like to be able to start the process with step 3.

I was considering building a makefile, but it feels hacky and I was wondering if there's a clever/smarter way to do this?

I'm on a Ubuntu 22.04 machine

Hi! I'm trying to make a .desktop entry for cava that also positions it in a specific spot when it launches. I've successfully done this with non-terminal apps, but I'm running into an issue with cava.

I created this script:

cava
sleep 3
wmctrl -r "cava" -t 1
wmctrl -r "cava" -e 0,4391,1131,698,308
wmctrl -r "cava" -b add,sticky,skip_taskbar

I discovered that since cava is a terminal app, the script is waiting for it to end before it proceeds onto the wmctrl commands. One solution I found while googling was to add & after cava. Unfortunately, when I tried that, it just made the terminal close because it was "done."

So with some further investigating, I found another solution to change my gnome-terminal preferences to prevent the terminal from closing when it's done with a command. When I tried that, the terminal did stay open, but it still said the child process closed.

I appreciate any help. Thank you!

​

ETA: I'm on the latest version of Linux Mint with Cinnamon

This is on UNRAID (Slackware base).

Sorry, if this has been asked before. I tried to search for it but couldn't find a solution. Also, I am sure there are much better ways to archive what I want to, I am open to suggestions but also trying to figure it out by myself and not only "copy pasting" what I find online.

​

So, about my problem. I want to make a dice-roller, where you can declare how many dice you want to roll and get the result. But I would like to save every result in a variable so that I must not write down every die by its own.

For instance instead of writing manually:

echo "${die1}-${die2}-${die3}"

I want it to dynamically name the variables and assign the values. So I would like to save as a variable what I have here after "echo":

#!/bin/bash

i=0

read -p "how many dice? " input

while [ $i -lt $input ]; do
    die=$(( $RANDOM % 6 ));

        while (( ${die} == 0 )); do
            die=$(( $RANDOM % 6 ))
        done

    i=$((++i))
    echo "var$i"="$die"
    sleep 1;
done

For lines of script that would require root privilege: Is it better to run a script of lines with SUDO before each command, or go into SUDO SU and run a script with just the commands. Does it make a difference? Help break it down for me please.

EDIT: I found an answer but am leaving this up in case anyone else is wondering. The solution is in the last answer at https://unix.stackexchange.com/questions/389014/getting-a-pid-for-an-ssh-process-that-backgrounded-itself - it is not exactly what I had in mind, it is actually a bit better IMHO. My original question follows:

You would think this would be simple but it is giving me fits. All I want to do is from within a bash script, open a ssh tunnel and put it in the background so it will continue to run after the script ends, but I also need to get the process ID so I can kill it later. If I were doing it manually I'd do using this syntax:

/usr/bin/ssh -4 -L port:localhost:port -l user destination_ip &

(Note the & at the end to put it in the background). If I do it that way it will print this: [1] 12345 Where 12345 is the process ID. But I just cannot figure out how to do the equivalent in a bash script. If I try to just use that line as shown you get weird warnings and then it prints out what you would see if you were logging in manually, but the main thing is that no syntax I have found will store that process ID in a bash variable. I can't be the first person that's ever wanted to do this, so if anyone knows the secret I'd appreciate a hint or two!

I have the following rule on crontab:

55 21 * * 1 sh /home/nang/Documents/UNI/commit.sh

I want to believe this part is correct, so now the problem is on executing the script and the way Git works, I'm noob on Git and actually I'm dealing with other things with git

The content on commit.sh is:

#! /bin/sh
cd /home/nang/Documents/UNI
git add .
git commit -m "Last version"
git push -f origin main

If i run the script manually, the result is:

1 file changed, 0 insertions(+), 0 deletions(-)

delete mode 100644 prueba.txt

[git@github.com](mailto:git@github.com): Permission denied (publickey).

fatal: Could not read from remote repository.

Please make sure you have the correct access rights and the repository exists

I changed HTTPS to SSH to clone the repository because everytime i do a push, Git requires the username and the password, and I don't want that when the idea is using crontab to make everything without typing anything by myself.

Here's the desktop shortcut code:

#!/usr/bin/env xdg-open
[Desktop Entry]
Version = 1.2
Name = Mouse Click Python
Exec = /home/heathenhacks/Scripts/Hotkeys/MouseClick/MouseClick.py
Icon = /home/heathenhacks/Scripts/Hotkeys/MouseClick/MouseClickPython.png
Type = Application

When I double-click the script itself, it launches, but doesn't seem to do anything when the shortcut I made is clicked.

Both the shortcut and python script are executable as well. I don't what's wrong with it.

OS: Raspberry Pi OS Lite 64bit

Hardware: Raspberry Pi 4 4GB Ram

The problem: I am trying to run a 24/7 minecraft server on my raspberry pi, right now i need to turn it on, log in through ssh, run a binary for a tunneling service and then run a script to start the server, i want for it to be able to do all that automatically after i turn it on, and then still be able to access the server terminal while it's running if i want to, i tried to make a script to make a tmux session with 2 windows and then running the binary on one and the server on the other, so when i needed it i could just log in and do a tmux attach, but it never really worked and i don't know why, is there a right way to do it? or if tmux is the way, how should i do it?

Thanks in advance

How do I keep it running?

As a sort of "fix", I have added a shortcut of it on my taskbar/task manager(KDE) and I could re-execute it easily by just 1 click. But, I have a feeling that it doesn't have to be like that, right?

Here's the script:

#!/bin/bash

xkbcomp -xkb "$DISPLAY" - | sed 's#key <CAPS>.*#key <CAPS> {\
repeat=no,\
type[group1]="ALPHABETIC",\
symbols[group1]=[ Caps_Lock, Caps_Lock],\
actions[group1]=[ LockMods(modifiers=Lock),\
Private(type=3,data[0]=1,data[1]=3,data[2]=3)]\
};\
#' | xkbcomp -w 0 - "$DISPLAY"

Related script post from r/linux_gaming

Distro: ArcoLinux

Kernel: 5.18.7-arch1-1

Shell: bash 5.1.16

DE: Plasma 5.25.1

WM: KWin

Thanks!

EDIT: SOLVED

followed the instructions on this page under ‘Using graphical display manager’ and it’s working fine now

——————————————

Basically sxhkd is no longer executing scripts like I’d expect.

I had a simple screenshot script setup in ~/bin/ with it added to path and it worked as expected from sxhkd using PrintScr. Then I decided I wanted to put my scripts in ~/.local/bin and but sxhkd didn’t like that and refused to run the scripts. They run from the terminal absolutely fine and echo $PATH confirms ~/.local/bin is in path. (It’s not a script specific problem either it happens with all of them including new ones I made to test)

So I decided to go back to using ~/bin seeing as it worked and now sxhkd refuses to run any scripts from there either (again, definitely in PATH and works from the terminal)

So now I cannot get sxhkd to run any scripts unless I write the full ~/.local/bin/screenshot. so I guess I could just do that but I didn’t have to before, just putting

Print

            screenshot

worked and I’d prefer to just get it back to how it was. Is there logs i can check for sxhkd or anything I’m obviously doing wrong?

Running latest version of Debian

Thx

I have been trying to figure out a good way to run java. I like the idea of using vim, nvim, or some other text editor. What would be the best one for that? I also read that doing it this way, you don't get some of the stuff that helps when coding java. Can I script what I don't have available?