Detect if a command is piped or not
You can do this using os.Stdin.Stat().
package main
import (
"fmt"
"os"
)
func main() {
fi, _ := os.Stdin.Stat()
if (fi.Mode() & os.ModeCharDevice) == 0 {
fmt.Println("data is from pipe")
} else {
fmt.Println("data is from terminal")
}
}
(Adapted from https://www.socketloop.com/tutorials/golang-check-if-os-stdin-input-data-is-piped-or-from-terminal)