Creating and Writing to Files
The Go language provides support in various ways to create and write to new files. We will examine some of the most common ways in which this is performed.
The os
package provides a simple way in which to create a file. For those who are familiar with the touch
command from the Unix world, it is similar to this. Here is the signature of the function:
func Create(name string(*File, error)
The function will create an empty file just like the touch
command. It is important to note that if it already exists, then it will truncate the file.
The Create
function from the os
package input parameter is the name of the file and the location that you want to create. If successful, it will return a File
type. It is worth noting that the File
type satisfies the io.Write
and io.Read
interfaces. This is important to know for later in the chapter:
package main import ( "fmt" "os" ) func main() { f...