initial commit

hello-world.go

@@ -0,0 +1,31 @@
+// Go has various value types including strings,
+// integers, floats, booleans, etc. Here are a few
+// basic examples.
+
+package main
+
+import (
+  "fmt"
+  // "log"
+  "os/exec"
+  "os"
+)
+
+func main() {
+
+  var (
+    cmdOut []byte
+    err    error
+  )
+  cmdName := "git"
+  cmdArgs := []string{"rev-parse", "--verify", "HEAD"}
+  if cmdOut, err = exec.Command(cmdName, cmdArgs...).Output(); err != nil {
+    fmt.Fprintln(os.Stderr, "There was an error running git rev-parse command: ", err)
+    fmt.Println(string(cmdOut))
+    os.Exit(1)
+  }
+  sha := string(cmdOut)
+  firstSix := sha[:6]
+  fmt.Println("The first six chars of the SHA at HEAD in this repo are", firstSix)
+
+}