Use os.Getenv() and os.Setenv() for reading and setting environment variables.

To find last modified file

find Documents/ -mtime -1

where mtime means “Last Modification Time”

There are two ways I like (without any external dependency).

If you don’t know what next() in python means, the below code illustrates it.

To know who how long your go code executes you can use the time.Now() and time.Since() methods in the time package.

There are basically 2-3 methods to convert integer to string and back to integer but the most easiest way is to use the Itoa and Atoi methods in the strconv package.

Splitting strings in Go is done by using the Split() method. You need to import the strings standard library to use this.