Skip to content

Instantly share code, notes, and snippets.

View Harold2017's full-sized avatar
😃

Harold Harold2017

😃
25 followers · 200 following
View GitHub Profile
@Harold2017
Harold2017 / Tencent-Cloud-setup-Shadowsocks-and-Google-BBR.md
Last active March 1, 2019 09:25
Tencent-Cloud-setup-Shadowsocks-and-Google-BBR

Update linux kernel

Find avaliable kernel

sudo apt-get update
apt-cache search --names-only linux-image

I found linux-image-4.15.0-36-generic is avaliable both in the kernel list and bbr list

Update both image and corresponding headers




  


  




    


          
    

      

        
        

          

              @Harold2017
          

          

            
                Harold2017
                / Pipenv-on-Mac.md
            
            

              Last active
              March 1, 2019 09:19
            

              
                Install and setup pipenv on Mac
              
          

        

      

        

  

      

    
Install pipenv


with brew


brew install pipenv


with pip3


pip3 install pipenv



  


  




    


          
    

      

        
        

          

              @Harold2017
          

          

            
                Harold2017
                / check-port-release.md
            
            

              Created
              March 1, 2019 09:16
            

          

        

      

        

  

      

    
check port occupied by which process


sudo lsof -i
sudo lsof -i | grep TCP
sudo lsof -i :80 | grep LISTEN
sudo netstat -lptu
sudo netstat -tulpn
sudo ls -l /proc/$pid/exe



  


  




    


          
    

      

        
        

          

              @Harold2017
          

          

            
                Harold2017
                / remove_unused_docker_images.md
            
            

              Last active
              March 14, 2019 10:43
            

          

        

      

        

  

      

    
docker rmi $(docker images -q -f dangling=true)
# docker rmi --force $(docker images -q -f dangling=true)



  


  




    


          
    

      

        
        

          

              @Harold2017
          

          

            
                Harold2017
                / client.py
            
            

              Created
              March 15, 2019 09:29
            

              
                python gRPC client side reflection
              
          

        

      

        

  

    
    


        



  


  

        

          
          from grpc_reflection.v1alpha import reflection
        

        

          
          

        

        

          
          

        

        

          
          def list_services(address):
        

        

          
              channel = grpc.secure_channel(address, get_client_credentials())
        

        

          
              stub = reflection._reflection_pb2_grpc.ServerReflectionStub(channel)
        

        

          
          

        

        

          
              def gen():
        

        

          
                  yield reflection._reflection_pb2.ServerReflectionRequest(host=address, list_services='')
        

  





    


  




    


          
    

      

        
        

          

              @Harold2017
          

          

            
                Harold2017
                / ImageMagick_with_rsvg.md
            
            

              Created
              March 21, 2019 09:14
            

              
                Solve svg rendering problem when composite image with transparent svg
              
          

        

      

        

  

      

    
check ImageMagick format:


covert -list format


check ImageMagick config:


convert -list configure | grep svg


install rsvg


apt-get install librsvg2-bin


build ImageMagick with rsvg


wget https://imagemagick.org/download/ImageMagick-6.9.10-34.tar.gz



  


  




    


          
    

      

        
        

          

              @Harold2017
          

          

            
                Harold2017
                / terminal_ss.md
            
            

              Created
              April 21, 2019 16:57
            

              
                terminal with ss
              
          

        

      

        

  

      

    


add alias function to ~/.zshrc


# proxy list
proxy() {
  export all_proxy=socks5://127.0.0.1:1086
  export http_proxy=http://127.0.0.1:1087
 export https_proxy=http://127.0.0.1:1087



  


  




    


          
    

      

        
        

          

              @Harold2017
          

          

            
                Harold2017
                / Goroutine.md
            
            

              Last active
              June 20, 2019 09:51
            

              
                some articles and papers about goroutine
              
          

        

      

        

  



    


          
    

      

        
        

          

              @Harold2017
          

          

            
                Harold2017
                / go_cpu.md
            
            

              Created
              June 25, 2019 04:48
            

              
                golang cpu usage in docker
              
          

        

      

        

  

      

    


Golang CPU usage in docker


// test.go
package main

import (
	"fmt"



  


  




    


          
    

      

        
        

          

              @Harold2017
          

          

            
                Harold2017
                / how-to-add-image-to-gist.md
            
            

              Last active
              July 2, 2019 04:48
                — forked from remarkablemark/how-to-add-image-to-gist.md
            

              
                How to add an image to a gist: https://remarkablemark.org/blog/2016/06/16/how-to-add-image-to-gist/