From 8cd3a4517f73d1e80c730bf760082b4cd141d02c Mon Sep 17 00:00:00 2001
From: Meutel <meutel@meutel.net>
Date: Sat, 8 Jul 2017 16:03:35 +0200
Subject: [PATCH] Date diff

---
 .gitignore       |  1 +
 datediff/main.go | 28 ++++++++++++++++++++++++++++
 2 files changed, 29 insertions(+)
 create mode 100644 datediff/main.go

diff --git a/.gitignore b/.gitignore
index 25977dc..1774231 100644
--- a/.gitignore
+++ b/.gitignore
@@ -39,3 +39,4 @@ my-md5/my-md5
 shadir/shadir
 shadirconcurrent/shadirconcurrent
 pinger/pinger 
+datediff/datediff
diff --git a/datediff/main.go b/datediff/main.go
new file mode 100644
index 0000000..1c51dbf
--- /dev/null
+++ b/datediff/main.go
@@ -0,0 +1,28 @@
+package main
+
+import "fmt"
+import "log"
+import "os"
+import "time"
+
+func main() {
+	if len(os.Args) != 3 {
+		log.Fatalln("usage datediff <date1> <date2>")
+	}
+
+	FORMAT := "02/01/2006"
+	d1, err := time.ParseInLocation(FORMAT, os.Args[1], time.Local)
+	if err != nil {
+		log.Fatalln("Invalid date 1", err)
+	}
+	d2, err := time.ParseInLocation(FORMAT, os.Args[2], time.Local)
+	if err != nil {
+		log.Fatalln("Invalid date 2", err)
+	}
+
+	dur := d2.Sub(d1)
+
+	//fmt.Println(dur.String())
+
+	fmt.Println(int64(dur / (24 * time.Hour)))
+}