python3 dsh.py    #dshell
    apt-get install qrencode
    qrencode -t ANSIUTF8 "http://192.168.1.8:8000/getFile/u/vikas/password.txt"
    nano ~/.bashrc 
    tnz ~/.bashrc 
    chmod +x ./dsh.py
    nano ./lib0-core/00-fn.py 
    nano ~/.bashrc
    source ~/.bashrc  #reload bashrc file 
    pwd
    md    #move to dsh dir 
    nano +162 ./lib1-tinput/17-sugg.py    #open file cursor jump to line 162

#setup server 

    apt update
    mkdir  ~/ZFS     #z file system 
    apt install python3-venv python3-pip -y


    #nginx setup 
    apt install nginx certbot python3-certbot-nginx    #install nginx 
    nano /etc/nginx/sites-available/default
    nginx -t       #check nginx file config is ok 
    systemctl reload nginx
    certbot --nginx -d zshlo.com -d www.zshlo.com      #ssh certficate install 
    systemctl status nginx


    #zshlo service setup 
    python3 ./main.py
    #uvicorn main:app --host 127.0.0.1 --port 8181  #testing for server 
    nano /etc/systemd/system/zshlo.service     #CREATE ZSERVER SERVICE
    ```
      [Unit]
      Description=Gunicorn instance to serve zshlo
      After=network.target

      [Service]
      User=root
      Group=www-data
      WorkingDirectory=/root/zsrc
      Environment="PATH=/root/zsrc/venv/bin"
      ExecStart=/root/zsrc/venv/bin/gunicorn -w 4 -k uvicorn.workers.UvicornWorker zshlo:app --bind 127.0.0.1:8181

      [Install]
      WantedBy=multi-user.target

    ```
    systemctl daemon-reload      #reload service config 
    systemctl reload  zshlo.service
    systemctl status  zshlo.service


    #zshlo test 
    nano /etc/systemd/system/zshlo.service
    systemctl enable zshlo.service
    systemctl start zshlo.service
    systemctl status zshlo.service

    systemctl daemon-reload
    systemctl restart zshlo.service
    systemctl status zshlo.service


    #test server 
    mkdir  ~/zsrc      #z-server code 
    cd     ~/zsrc  
    python3 -m venv venv 
    source venv/bin/activate  #stat python venv 
    pip3 install fastapi uvicorn gunicorn 
    pip3 install python-multipart
    uvicorn main:app --host 0.0.0.0 --port 7856  #testing for server 
    deactivate    #py venv 





    gunicorn -w 4 -k uvicorn.workers.UvicornWorker main:app --bind 127.0.0.1:8181

  history
  history > ./ZFS/history