os/exec: add example for Cmd.Run

Change-Id: Ic47198bc8bf5baabfcf4d0599825eab30d7b126c
Reviewed-on: https://go-review.googlesource.com/48853
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

diff --git a/src/os/exec/example_test.go b/src/os/exec/example_test.go
index b70b99032523c299ac84d260f17b9cb4621af56c..62866fa710fec92c51c11859949efb704edeadb8 100644 (file)
--- a/src/os/exec/example_test.go
+++ b/src/os/exec/example_test.go
@@ -57,6 +57,13 @@ func ExampleCmd_Output() {
        fmt.Printf("The date is %s\n", out)
 }
 
+func ExampleCmd_Run() {
+       cmd := exec.Command("sleep", "1")
+       log.Printf("Running command and waiting for it to finish...")
+       err := cmd.Run()
+       log.Printf("Command finished with error: %v", err)
+}
+
 func ExampleCmd_Start() {
        cmd := exec.Command("sleep", "5")
        err := cmd.Start()