Ahmed Samir Abdelreheem Samir55

## delete_git_submodule.md

      
              1 file
            
          
              361 forks
            
          
              195 comments
            
          
              2382 stars
            
          
                myusuf3
                / delete_git_submodule.md
            
            
              Created
              November 3, 2014 17:36
            
              
                How effectively delete a git submodule.
              
          
    To remove a submodule you need to:

Delete the relevant section from the .gitmodules file.
Stage the .gitmodules changes git add .gitmodules
Delete the relevant section from .git/config.
Run git rm --cached path_to_submodule (no trailing slash).
Run rm -rf .git/modules/path_to_submodule (no trailing slash).
Commit git commit -m "Removed submodule "
Delete the now untracked submodule files rm -rf path_to_submodule


## WebSockets.md

      
              1 file
            
          
              32 forks
            
          
              17 comments
            
          
              210 stars
            
          
                subudeepak
                / WebSockets.md
            
            
              Last active
              November 2, 2022 00:04
            
              
                The problems and some security implications of websockets - Cross-site WebSockets Scripting (XSWS)
              
          
    WebSockets - An Introduction

WebSockets is a modern HTML5 standard which makes communication between client and server a lot more simpler than ever. We are all familiar with the technology of sockets. Sockets have been fundamental to network communication for a long time but usually the communication over the browser has been restricted. The general restrictions

The server used to have a permanent listener while the client (aka browser) was not designated any fixed listener for a more long term connection. Hence, every communication was restricted to the client demanding and the server responding.
This meant that unless the client requested for a particular resource, the server was unable to push such a resource to the client.
This was detrimental since the client is then forced to check with the server at regular intervals. This meant a lot of libraries focused on optimizing asynchronous calls and identifying the response of asynchronous calls. Notably t


## README.md

      
              3 files
            
          
              0 forks
            
          
              0 comments
            
          
              3 stars
            
          
                magnetikonline
                / README.md
            
            
              Last active
              November 10, 2017 14:36
            
              
                Enable a daily SSD TRIM operation for Ubuntu 12.04+.
              
          
    SSD TRIM support for Ubuntu 12.04+

Steps to add a daily SSD TRIM task to your Ubuntu system (tested with 12.04+) which will run via anacron with logging of the trim process to /var/log/fstrimall.log.
Note: if you have previously enabled TRIM support for your mounted drive(s) using the discard option within /etc/fstab you will want to remove this option and re-mount your drives first ($ mount -a).


Install scripts
$ sudo wget \


https://gist.github.com/magnetikonline/8190599/raw/fstrimall.sh \

  
## cond.c
#include <pthread.h>
#include <stdio.h>
#include <unistd.h>
#include <assert.h>


/* Compile like this:

 gcc --std=c99 -lpthread cond.c -o cond
	#include <pthread.h>
	#include <stdio.h>
	#include <unistd.h>
	#include <assert.h>


	/* Compile like this:

	gcc --std=c99 -lpthread cond.c -o cond