* This File : howto_WSL.txt
* Rev       : 2.2
* Date      : 05/19/2022


* ***************************************************************************
VERY VERY IMPORTANT NOTE - (this takes getting used to)

  To Copy  text in a Debian Terminal : Highlight with Mouse, then hit the Enter Key
  To Paste text in a Debian Terminal : Right-Click Mouse
* ***************************************************************************


* ***************************************************************************
1. Install VcXsrv
* ***************************************************************************

   https://sourceforge.net/projects/vcxsrv/

   https://sourceforge.net/projects/vcxsrv/files/latest/download

     (42.9 MB) 64.1.20.14.0


   When you run it, select :
     Multiple-Windows
     Start-No-Client
     Disable-access-control

* ***************************************************************************

* ***************************************************************************
2. Install WSL
* ***************************************************************************

1. open a powershell as admin

2. wsl --list --online

3. wsl --install -d Debian


(reboot if needed)

(make sure connected to internet)

4. setup wsl2 user and passwd as prompted
   (if not prompted then :
      * open a power shell as admin
      * wsl --list --verbose
      * wsl --list --online
      * wsl --install -d Debian
   )

   (to remove a distribution :
      * wsl --unregister Debian
   )


5. In the debian window that pops up
   add user and passwd


6. Open a powershell (if you don't already have one from step 4)
     * wsl --list --verbose
       (you should see the version you installed now)


7. Open a new debian window

   sudo ls

   sudo apt-get update

   sudo apt-get install vim

   sudo apt-get install xterm

   sudo apt-get install gcc make perl

   sudo apt-get install xfstt xfonts-base xfonts-utils xfonts-100dpi xfonts-75dpi

   sudo apt-get install imagemagick

   sudo apt-get install gnuplot-x11

   sudo apt-get install python-tk python3-tk python3-pip

   sudo apt-get install maxima xmaxima octave octave-signal

   sudo apt-get install rlwrap

   sudo apt-get install openssh-client

   sudo apt-get install x11-apps x11-utils xbitmaps

   sudo apt-get install fig2dev epstool

   sudo apt-get install git

   sudo apt-get install zip


8. Install python pip3 packages

   sudo pip3 install matplotlib
   sudo pip3 install scipy


9. Create bash settings file
   (make sure to replace "yourname" with your Windows USERNAME)

   nano .bash_aliases


* 888888888888888888888888888888888888888888888888888888888888888888888888888888888888888

#!/bin/bash

export TBOX=/tbox

export DD=/mnt/c/Users/yourname/DD
export DD_DOS="C:/Users/yourname/DD"

export HOST_IP=$(cat /etc/resolv.conf | grep nameserver | awk '{print $2}')

PATH=.:$HOME/bin:$TBOX/bin:$DD/bin:$PATH

alias lls='ls -alrt'
alias ll='ls -l'
alias llm='ls -l | more'
alias lct='cut -c -120'

alias mypath="echo \$PATH | sed -e 's/:/\n/g'"

export DISPLAY=$HOST_IP:0

* 888888888888888888888888888888888888888888888888888888888888888888888888888888888888888


8. Create .vimrc

   nano .vimrc

* 888888888888888888888888888888888888888888888888888888888888888888888888888888888888888

set viminfo=
:highlight Visual cterm=reverse ctermbg=NONE

* 888888888888888888888888888888888888888888888888888888888888888888888888888888888888888

9. Create $DD/bin

   cd /mnt/c/Users/yourname
   mkdir DD
   cd DD
   mkdir bin


10. Create /tbox
    (make sure to replace "greg" with your WSL username)  

   cd /
   sudo mkdir tbox
   sudo chown greg:greg tbox

* ***************************************************************************
   




~$ nano hello.c

~$ gcc hello.c -lm -o hello.exe

~$ hello.exe


* 888888888888888888888888888888888888 Begin hello.c 888888888888888888888888888888888888
#include <stdio.h>
#include <math.h>


int main(int argc, char **argv) {

  double yval; 




  printf("\n");
  printf("Hello World!\n");
  printf("\n");

  yval = 4.0 * atan(1.0);

  printf("\n");
  printf("PI = %0.12f\n", yval);
  printf("\n");

}
* 888888888888888888888888888888888888 End   hello.c 888888888888888888888888888888888888



(make sure you have startied VcXsrv)

~$ nano convert3.py

~$ chmod ugo+x convert3.py

~$ convert3.py


* 888888888888888888888888888888888888 Begin convert3.py 88888888888888888888888888888888
#!/usr/bin/env python3

import tkinter as tk

def calculate(*args):
    try:
        value = float(feet.get())
        meters.set((0.3048 * value * 10000.0 + 0.5)/10000.0)
    except ValueError:
        pass

root = tk.Tk()
root.title("Feet to Meters")

mainframe = tk.Frame(root)
mainframe.grid(column=0, row=0)
mainframe.columnconfigure(0, weight=1)
mainframe.rowconfigure(0, weight=1)

feet   = tk.StringVar()
meters = tk.StringVar()

feet_entry = tk.Entry(mainframe, width=7, textvariable=feet)
feet_entry.grid(column=2, row=1)

tk.Label(mainframe, textvariable=meters).grid(column=2, row=2)
tk.Button(mainframe, text="Calculate", command=calculate).grid(column=3, row=3)

tk.Label(mainframe, text="feet").grid(column=3, row=1)
tk.Label(mainframe, text="is equivalent to").grid(column=1, row=2)
tk.Label(mainframe, text="meters").grid(column=3, row=2)

feet_entry.focus()

root.bind('<Return>', calculate)

root.mainloop()
* 888888888888888888888888888888888888 End   convert3.py 88888888888888888888888888888888