Sometimes you may need to restore default repositories in your Ubuntu System. Here are the steps to restore sources.list file.
How to Restore Default Repositories in Ubuntu
How to Get Unique IP Address from Log File
Often website administrators need to extract unique IP address from log files. Here are the steps to do so.
How to Merge Two JS Objects
Sometimes you may need to merge two objects in JavaScript. Here are the steps to merge two JS objects.
How to Check if String is Valid Number in JavaScript
Sometimes you may need to check if string is valid number or not in JavaScript. Here are the steps to do it.
How to Detect Invalid Date in JavaScript
Sometimes you may need to detect if a date is valid or not in JavaScript. Here are the steps to do it.
How to Compare Arrays in JavaScript
How to Add Days to Date in JavaScript
How to Compare Two Dates Using JavaScript
How to Get Nested Object Keys in JavaScript
How to Overwrite Input File in Awk
Sometimes you may need to save awk modifications in place. Here is how to overwrite input file in awk command.