Q:

Golang program to commit or sync data into memory disk

belongs to collection: Golang File Handling Programs

YasminRadwan26
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2022-07-04
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In this program, we will create a file and write data into a file, and sync or commit data into the memory disk permanently.

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YasminRadwan26
2022-07-04
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Program/Source Code:

The source code to commit or sync data into the memory disk is given below. The given program is compiled and executed on the ubuntu 18.04 operating system successfully.

// Golang program to commit or sync data
// into memory disk

package main

import "os"
import "fmt"

func main() {
	file, err := os.Create("Demo.txt")
	if err != nil {
		fmt.Println("Unable to open file: %s", err)
	}

	len, err := file.WriteString("Hello World")

	if err != nil {
		fmt.Println("Unable to write data: %s", err)
	}

	fmt.Printf("%d character written into file", len)

	err = file.Sync()
	if err != nil {
		fmt.Println("Unable to sync data ", err)
	}
	fmt.Printf("\nData save permanently")

	file.Close()
}

Output:

1 character written into file
Data save permanently

Explanation:

In the above program, we declare the package main. The main package is used to tell the Go language compiler that the package must be compiled and produced the executable file. Here, we imported the fmt, os packages then we can use a function related to the fmt and os package.

In the main() function, we created a file "Demo.txt" and write the "Hello World" message into the file. After that, we synced the data into the memory disk using Sync() function and print the "Data save permanently" message on the console screen.

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