vinsim24

A curated list of AWS resources to prepare for the AWS Certifications

A curated list of awesome AWS resources you need to prepare for the all 5 AWS Certifications. This gist will include: open source repos, blogs & blogposts, ebooks, PDF, whitepapers, video courses, free lecture, slides, sample test and many other resources.

For more about AWS and AWS Certifications and updates to this Gist you should follow me @leonardofed

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vinsim24

nohup node server.js > /dev/null 2>&1 &
1. nohup means: Do not terminate this process even when the stty is cut off.
2. > /dev/null means: stdout goes to /dev/null (which is a dummy device that does not record any output).
3. 2>&1 means: stderr also goes to the stdout (which is already redirected to /dev/null). You may replace &1 with a file path to keep a log of errors, e.g.: 2>/tmp/myLog
4. & at the end means: run this command as a background task.

vinsim24

#!/bin/bash

#Find all link files
ls -ltr `find . -maxdepth 1 -type l -print`

#Find and remove all files whose modified time is greater than 30 days
find . -type f -mtime +30 -exec rm {} \;

#Find particular word across files in same directory
find . -type f | xargs grep -l "searched_word"

vinsim24

#!/bin/bash
cat input.txt | sed 's/^[ \t]*//;s/[ \t]*$//' > output.txt

vinsim24

import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;

import org.apache.commons.httpclient.Header;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.SimpleHttpConnectionManager;
import org.apache.commons.httpclient.URI;
import org.apache.commons.httpclient.methods.GetMethod;

vinsim24

import org.apache.log4j.Logger;

import java.lang.reflect.Method;
import java.util.Map;

public class ReflectionUtil
{
    private static Logger logger = Logger.getLogger(ReflectionUtil.class);
   /**
   * This is used to run a static method in a class.