fahimbabarpatel

1. save below code in nodejs_default_memory_check.js,
2. execute it - node nodejs_default_memory_check.js . You can see this script fails and thats default RAM limit of NodeJS. Plz check screenshot in below comment. In Latest NodeJS versions default RAM is 4GB (still on the basis of your hardware and system OS, RAM will differ)
3. use max-old-space-size option if you want to increase memory limit. It accepts value in MB. In this example we are setting 8GB RAM node --max-old-space-size=8192 nodejs_default_memory_check.js

function allocateMemory(size) {
  // Simulate allocation of bytes
  const numbers = size / 8;
  const arr = [];
 arr.length = numbers;

fahimbabarpatel

One liner to stop / remove all of Docker containers:

docker stop $(docker ps -a -q)
docker rm $(docker ps -a -q)

Remove only stopped containers can be listed using:

docker rm $(docker ps -f "status=exited")

fahimbabarpatel

Put below code in .bashrc or .bash_profile. Close and start again all terminal or hit source ~/.bashrc to specific tab if you don't want to close terminal

parse_git_branch() {
     git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/ (\1)/'
}
export PS1="\u@\h \[\033[32m\]\w\[\033[33m\]\$(parse_git_branch)\[\033[00m\] $ "

fahimbabarpatel

Shipit-cli - Command line utility to execute shipit scripts. 
shipit-deploy - Npm to do actual code movement and publishing.
shipit-npm - Npm to install npms on servers during deployment.
shipit-shared - Npm to access symlinks file and directory on servers.


module.exports = function (shipit) {
  require('shipit-deploy')(shipit);
 require('shipit-shared')(shipit);

fahimbabarpatel

npm install --save socket.io

---------------------------------SERVER CODE START------------------------------------------
var express = require('express');
var app = express();
var server = http.createServer(app);
io = require("socket.io").listen(server);
server.listen(3000)

fahimbabarpatel

• Know the inode of the directory by ls -i command (lets say for example its X)

• Know on which partition your directory is saved by df -T /path command ( lets say its on /dev/sda1 )

• Now use this command : sudo debugfs -R 'stat ' /dev/sda1 You will see in the output :

• crtime: 0x4e81cacc:966104fc -- mon Sep 27 14:38:28 2013

fahimbabarpatel

Follow Phusion Passenger URL for Ubuntu setup https://www.phusionpassenger.com/library/install/nginx/install/oss/trusty/ ( If in future above URL is not present then visit to Phusion Passenger site to select Ubuntu OS and futher instaltion steps.)

Install our PGP key and add HTTPS support for APT

• sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 561F9B9CAC40B2F7
• sudo apt-get install -y apt-transport-https ca-certificates

Add our APT repository

• sudo sh -c 'echo deb https://oss-binaries.phusionpassenger.com/apt/passenger trusty main > /etc/apt/sources.list.d/passenger.list'
• sudo apt-get update

fahimbabarpatel

https://jsfiddle.net/pafahim/zqzehnL2/

fahimbabarpatel

http://mherman.org/blog/2013/09/16/managing-multiple-github-accounts/#.V64TjXV96tF

fahimbabarpatel

ssh remote_host

The remote_host in this example is the IP address or domain name that you are trying to connect to.

This command assumes that your username on the remote system is the same as your username on your local system.

If your username is different on the remote system, you can specify it by using this syntax: