I'm trying to write a simple golang program that lists the files in a directory. Whenever my shell command yields multiple lines, it registers in Go as an array
For example, when i try the following:
import (
"log"
"os/exec"
"fmt"
)
func main (){
out,err := exec.Command("ls").Output()
if err != nil {
log.Fatal(err)
}
fmt.Println(out)
}
I end up with the output [101 108 105 109 115 116 97 116 115 46 105 109 108 10 101 110 118 10 115 99 114 97 116 99 104 10 115 114 99 10]
I feel like this is a common thing to do but wasn't able to find it on here anywhere.
The return type of the first value from Output
is []byte
. fmt.Println
is displaying the numeric values of each slice element.
To show the desired result of the output of the command, you can either convert the byte slice to a string or use a format string with the %s
verb:
fmt.Println(string(out))
Or:
fmt.Printf("%s
", out)