guicaro

dateToMillis() {
        #date as YYYY-MM-DD
        echo $((`gdate -d $1 +%s` * 1000))
}
millisToDate() {
        gdate -d @`echo $(( $1 / 1000 ))`
}

guicaro

# MIT License

# Copyright (c) 2016 Chandler Abraham

# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:

guicaro

// Snippets of code that work in Java 8.
// I've compiled these based on problems solved at:
// leetcode.com, interviewbit.com, firecode.io, hackerrank.com
// I strongly recommend you get a Java REPL to play around with some of this code 
// (https://github.com/albertlatacz/java-repl)
// You can also use the jshell to run all these commands

// All following lines can be run in a Java REPL

// Note: If you see multiple lines of code, it's better to paste each line separately, just sayin'