Commandline arguments parsing program in Golang 1.20
0In this video we are going to generate source code for the GoLang Program, Commandline arguments parsing program in Golang 1.20 using chatGPT.
After generating we will verify and run the generated code.
IMPORTANT NOTE on SOURCE CODE: only source code that are acceptable by the youtube description box will be displayed.
##############SOURCE CODE#########################
package main
import (
"flag"
"fmt"
)
func main() {
// Define command-line flags
strPtr := flag.String("str", "", "a string")
intPtr := flag.Int("int", 0, "an int")
boolPtr := flag.Bool("bool", false, "a bool")
// Parse command-line arguments
flag.Parse()
// Print the values of the parsed command-line arguments
fmt.Println("str:", *strPtr)
fmt.Println("int:", *intPtr)
fmt.Println("bool:", *boolPtr)
}
Below is the explanation for the program:
In this program, we are using the Go standard library flag package to parse command-line arguments.
We define three command-line flags using the flag.String(), flag.Int(), and flag.Bool() functions.
These functions take three arguments: the name of the flag, its default value, and a short description of the flag.
We then call flag.Parse() to parse the command-line arguments.
This will set the values of the command-line flags based on the arguments passed to the program.
Finally, we print the values of the parsed command-line flags using fmt.Println() statements.
Here's an example of how you might run this program with command-line arguments:
$ go run main.go -str hello -int 42 -bool true
str: hello
int: 42
bool: true
As you can see, the program is able to parse the command-line arguments and set the values of the corresponding flags, which we can then use in our program as needed.
#go #goprogramming #golang #golangtutorial #golanguage