Added system utilities sanity check

run.rb

@@ -32,6 +32,18 @@ admin = @conf['admin']
 STDOUT.sync = true
 errcount = 0
 puts "Checking if environment is sane...\n\n"
+print "Checking system utilities ............... "
+if !system("which nmap 2>&1 >/dev/null")
+    print "FAIL!\n\n".red.bold
+    puts "nmap".yellow.bold + " not found. This utility requires the 'nmap' command (for testing connectivity to temperature probes)"
+    exit(1)
+elsif !system("which curl 2>&1 >/dev/null")
+    print "FAIL!\n\n".red.bold
+    puts "curl".yellow.bold + " not found. This utility requires the 'curl' command (for providing IP information to users upon request)"
+    exit(1)
+else
+    print "OK\n".green.bold
+end
 print "Checking bot token ...................... "
 if @token.nil?
     print "FAIL!\n\n".red.bold