Optimize and make cooler!

LICENSE

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+This is free and unencumbered software released into the public domain.
+
+Anyone is free to copy, modify, publish, use, compile, sell, or
+distribute this software, either in source code form or as a compiled
+binary, for any purpose, commercial or non-commercial, and by any
+means.
+
+In jurisdictions that recognize copyright laws, the author or authors
+of this software dedicate any and all copyright interest in the
+software to the public domain. We make this dedication for the benefit
+of the public at large and to the detriment of our heirs and
+successors. We intend this dedication to be an overt act of
+relinquishment in perpetuity of all present and future rights to this
+software under copyright law.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+For more information, please refer to <https://unlicense.org>

README.md

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 # Nitrogen Random
 
-Simply changes your nitrogen desktop wallpaper to a random image from provided folder.
+Simply changes your [nitrogen](https://wiki.archlinux.org/title/Nitrogen) desktop wallpaper to a random image from a folder.
 
 ### How to run ###
-Edit the script and make all variables valid:
 
-BGSAVED is the path to bg-saved.cfg of nitrogen, must be in your .config/nitrogen folder.
-
-WALLPAPERS is the path to a folder where all your wallpapers are located.
-
-You may also put it to crontab.
+* Carefully read the installation script and then launch it:
+```bash
+bash install.sh
+```
+* Follow the instructions.
+* Optionally edit your .nitrogen-random config file.
+* Try it by running nitrogen-random.
+* Optionally add it to your [crontab](https://wiki.archlinux.org/title/Cron)!

install.sh

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+#!/bin/bash
+
+if [[ "$EUID" = 0 ]]
+then
+    echo "Please run without sudo."
+    exit 0
+fi
+
+if [ ! -d ~/.config/nitrogen/ ]
+then
+    echo "You don't have nitrogen installed! Please install it."
+    exit 0
+fi
+
+echo "Now exporting default config file to ~/.config/nitrogen/.nitrogen-random"
+echo "#Path to bg-saved.cfg of nitrogen, must be in your ~/.config/nitrogen folder." > ~/.config/nitrogen/.nitrogen-random
+echo "nBGSAVED=/home/${USER}/.config/nitrogen/bg-saved.cfg" >> ~/.config/nitrogen/.nitrogen-random
+echo " " >> ~/.config/nitrogen/.nitrogen-random
+echo "#Path to a folder where all your wallpapers are located." >> ~/.config/nitrogen/.nitrogen-random
+echo "nWALLPAPERS=/home/${USER}/Pictures/" >> ~/.config/nitrogen/.nitrogen-random
+echo " " >> ~/.config/nitrogen/.nitrogen-random
+echo "#Nitrogen policy for resizing and scaling." >> ~/.config/nitrogen/.nitrogen-random
+echo "nMODE=4" >> ~/.config/nitrogen/.nitrogen-random
+
+echo "nitrogen-random will read config from ~/.config/ folder of ${USER}."
+decided=false
+while [ "$decided" == false ]
+do
+    echo "Choose an option:"
+    echo "1) It's okay, the config will be in /home/${USER}/.config/nitrogen/"
+    echo "2) No, I want to set the path on my own."
+    read input
+    if [ "$input" == "1" ]
+    then
+        decided=true
+        sed -i "s/{username}/${USER}/" nitrogen-random        
+    elif [ "$input" == "2" ]
+    then
+        decided=true
+        echo "Please write path to the config file in /usr/local/bin/nitrogen-random manually!"
+    fi 
+done
+
+chmod u+x ./nitrogen-random
+echo "Ready to install ./nitrogen-random to /usr/local/bin/"
+sudo cp -f ./nitrogen-random /usr/local/bin/
+sudo chown ${USER} /usr/local/bin/nitrogen-random
+
+echo " "
+echo "    All done! (>  < ) "

nitrogen-random

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 #!/bin/bash
 
-nBGSAVED=/home/naiji/.config/nitrogen/bg-saved.cfg
-nWALLPAPERS=/home/naiji/Pictures/wallpapers/lewd/
-nMODE=4
+#You can move the config .nitrogen-random anywhere, just replace the path here
+. /home/{username}/.config/nitrogen/.nitrogen-random
 
 export DISPLAY=:0