diff --git a/acatcher/alive.sh b/acatcher/alive.sh
new file mode 100755
index 0000000..525deb5
--- /dev/null
+++ b/acatcher/alive.sh
@@ -0,0 +1,14 @@
+#!/bin/sh
+if [ -z "$1" ]; then
+  HOSTS="`grep -v ^# MASTER_LIST | cut -d\| -f3`"
+else
+  HOSTS="`cat \"$1\"`"
+fi
+for HOST in $HOSTS; do
+  ping -c 3 -q $HOST 2>&1 >/dev/null
+  if [ $? -eq 0 ]; then
+    echo "[ UP ] $HOST"
+  else
+    echo "[DOWN] $HOST"
+  fi
+done