Simple wrapper package around Go standard package os.exec.
Example:
func Example() {
// use Linux calculator for this example:
cmd, err := NewCmd("bc")
if err != nil {
log.Fatal(err)
}
go func() {
exitCode, err := cmd.Run()
if err != nil {
log.Fatalf("cmd.Run failed with error %q", err)
}
if exitCode != 0 {
log.Fatalf("invalid exit code %d ", exitCode)
}
}()
cmd.Write("2 + 2\n")
result := <-cmd.Output()
fmt.Println(result.Value)
cmd.Write("quit\n")
// Output: 4
}