From 8d0df0ad1288323bd0f5ad118d5a8d6a500bfd6e Mon Sep 17 00:00:00 2001
From: Travis Van Duyn <travis.vanduyn@gmail.com>
Date: Wed, 4 Sep 2019 17:46:17 -0700
Subject: [PATCH] [show] Add 'show boot' command (#630)

---
 doc/Command-Reference.md | 15 +++++++++++++++
 show/main.py             | 11 +++++++++++
 2 files changed, 26 insertions(+)

diff --git a/doc/Command-Reference.md b/doc/Command-Reference.md
index 97ac6f9c6c7e..a7ed0ec02159 100644
--- a/doc/Command-Reference.md
+++ b/doc/Command-Reference.md
@@ -382,6 +382,21 @@ This command displays the current date and time configured on the system
   Mon Mar 25 20:25:16 UTC 2019
   ```
 
+**show boot**
+This command displays the current OS image, the image loaded on next reboot, and the lists the available images on the system
+
+-  Usage:
+   show boot
+
+- Example:
+  ```
+  admin@sonic:~$ show boot
+  Current: SONiC-OS-20181130.31
+  Next: SONiC-OS-20181130.31
+  Available: 
+  SONiC-OS-20181130.31
+  ```
+
 **show environment**
 This command displays the platform environmentals, such as voltages, temperatures and fan speeds
 
diff --git a/show/main.py b/show/main.py
index 1cd0aedccc8b..da4e3ae87948 100755
--- a/show/main.py
+++ b/show/main.py
@@ -1860,6 +1860,17 @@ def ecn():
     click.echo(proc.stdout.read())
 
 
+#
+# 'boot' command ("show boot")
+#
+@cli.command('boot')
+def boot():
+    """Show boot configuration"""
+    cmd = "sudo sonic_installer list"
+    proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, shell=True)
+    click.echo(proc.stdout.read())
+
+
 # 'mmu' command ("show mmu")
 #
 @cli.command('mmu')