abdelhamed abdin's questions

I don't know if there is anyone who faced this problem before, but I tried many solutions for that, and all have failed until I thought of a new solution so, here a list of what is the problem, and what are the solutions that I got through it.

I was exposed to a black screen view when I'm trying to open the Linux, there's no information the black screen has.

note:-
I don't have another OS on my machine just Linux os that I have

here is the list of solutions I followed:

1. I entered the "grub" by clicking on the Escape button then, I tried to connect both "boot" and "prefix" with their own path. I tried this step many times for different drives that display by typing the command "set" to see what are drives I can connect with.

one of them that is when I connect the boot and prefix with it and do reinstall by normal, it does a reboot for Linux but returns me back to the same screen "the black screen"

2. I entered the Linux by USB drive boot then, I used a test version of Linux and then I abled to access the os but there are two problems by that:

First: I can't copy or paste data because I don't use a real user who hasn't root.

Second: there are important files that I have in the "home directory" on Linux but when I accessed them by USB I couldn't access them, in other words, the "home directory" of the experimental version contains its own files and don't have any files belong to me on it.

so, the question is: what are the methods that I can solve that problem without losing my data?

thank you in advance

I'm working on this tutorial to setup uWSGI but I'm stuck by this command:

uwsgi --http :8080 --home /home/user/Env/firstsite --chdir /home/user/firstsite -w firstsite.wsgi

first of all, my actual directory path in /home/ubuntu/Es2al2/website, "website": is a project which I work on.

I have no idea what is that command does exactly also, I place my virtual environment into the project itself like so: /home/ubuntu/Es2al2/website/venv/ so, how can I show virtual environment for uWSGI, have I should place my venv like he does by outside the main project or may I place my own venv as I typed in my path?

Note:

"firstsite" is the project that tutorial has created and you can substitute by my real project "website" instead, as I explained.

I'm new in ubuntu and when I try every time to install a program sometimes I install the program by apt-get command or by snap so, please anyone can tell me when I should use snap or apt-get?
thank you

I was trying to remove some files and directories on my system but I didn't know so, I read about (wipe) command so, I thought that I may delete the files by it but I stopped the command running and when I tried open terminal again I did find this message at the beginning of CMD:

bash: /usr/bin/lesspipe: /bin/sh: bad interpreter: No such file or directory

so, please if anyone can help me anything instead of reboot or set up my system again I will be so appreciable.

When I try to save the file of PHP in Ubuntu I get that error:

unable to save /var/www/html/script.php 
Error permission denied

How can I fix this error and save/run the PHP file?