Add script for OS shutdown on RP

rp_shutdown

@@ -0,0 +1,26 @@
+#!/bin/sh
+
+# RedPitaya hostname and user information
+# (The user should have privilege to run `shutdown` - check out `visudo`)
+# (Add local SSH key to RP's authorized keys for passwordless login)
+export RP_HOST=rp-f0612e
+export RP_USER=tester
+export RP_KEY=~/.ssh/rp
+
+# Issue shutdown on the RedPitaya
+echo "Requesting shutdown on RP at $RP_HOST."
+if [[ $RP_KEY == "" ]]
+then
+    ssh $RP_USER@$RP_HOST "sudo shutdown now"
+else
+    ssh -i $RP_KEY $RP_USER@$RP_HOST "sudo shutdown now"
+fi
+
+# Check if RedPitaya has been disconnected from network by pinging
+while ping $RP_HOST -c 1 >/dev/null 2>/dev/null
+do
+    true
+done
+# Print time when RedPitaya is down on network
+TIMESTAMP_PRETTY=$(date '+%Y-%m-%d %H:%M:%S')
+echo "RP disconnected at $TIMESTAMP_PRETTY."