add example of rotating in response to sighup

README.md

@@ -132,6 +132,25 @@ SIGHUP.  After rotating, this initiates a cleanup of old log files according
 to the normal rules.
 
 
+#### Example
+
+Example of how to rotate in response to SIGHUP.
+
+Code:
+
+  l := &lumberjack.Logger{}
+  log.SetOutput(l)
+  c := make(chan os.Signal, 1)
+  signal.Notify(c, syscall.SIGHUP)
+
+  go func() {
+      for {
+          <-c
+          l.Rotate()
+      }
+  }()
+
+
 
 ### func (\*Logger) Write
 ``` go

example_test.go

@@ -0,0 +1,27 @@
+// +build linux
+
+package lumberjack_test
+
+import (
+	"log"
+	"os"
+	"os/signal"
+	"syscall"
+
+	"github.com/natefinch/lumberjack"
+)
+
+// Example of how to rotate in response to SIGHUP.
+func ExampleLogger_Rotate() {
+	l := &lumberjack.Logger{}
+	log.SetOutput(l)
+	c := make(chan os.Signal, 1)
+	signal.Notify(c, syscall.SIGHUP)
+
+	go func() {
+		for {
+			<-c
+			l.Rotate()
+		}
+	}()
+}