diff --git a/Makefile b/Makefile
index 555653a..b39625f 100644
--- a/Makefile
+++ b/Makefile
@@ -7,7 +7,8 @@ MACROS=\
 -DZMQ_TOKEN=\"$(ZMQ_TOKEN)\" \
 -DZMQ_MSG_SIZE=$(ZMQ_MSG_SIZE) \
 -DLOG_DELAY=$(LOG_DELAY) \
--DMAX_QUEUE=$(MAX_QUEUE)
+-DMAX_QUEUE=$(MAX_QUEUE) \
+-DRCV_CMD=":"
 
 all: publisher subscriber
 
diff --git a/src/subscriber.c b/src/subscriber.c
index 44a2a41..1471a58 100644
--- a/src/subscriber.c
+++ b/src/subscriber.c
@@ -1,6 +1,7 @@
 #include <zmq.h>
 #include <assert.h>
 #include <signal.h>
+#include <stdlib.h> // Access to system()
 #include "utils.h"
 
 /// @brief Set to non-zero to stop the processes
@@ -60,6 +61,7 @@ int main (int argc, char *argv [])
     char client[STATIC_LEN];
     long int interval;
     FILE *fptr;
+    char path[STATIC_LEN]=""; // Output file path
     int line=1;
     while(token != NULL){
       if(line==2)
@@ -72,7 +74,6 @@ int main (int argc, char *argv [])
       if(line==4){
         double size_mib=size/(1024*1024);
         printf("Data received: key=%s client=%s interval=%ld msgsize=%.2lfMiB\n",key, client, interval,size_mib);
-        char path[STATIC_LEN]="";
         // Create dir if not exists:
         sprintf(path,"%s/%s/%s/",cdatadir,key,client);
         if(!DIR_EXISTS(path)){
@@ -81,7 +82,7 @@ int main (int argc, char *argv [])
         // Now open output file:
         sprintf(path,"%s/%s/%s/%ld",cdatadir,key,client,interval);
         char exists=FILE_EXISTS(path);
-        fptr=fopen(path,"a");
+        fptr=fopen(path,"a"); // AT SOME POINT WE MUST CHECK IF WORKED!! OTHERWISE PROBLEM
         if(!exists){
           fwrite(CSV_HEADER"\n", strlen(CSV_HEADER)+1, 1, fptr);
         }
@@ -97,10 +98,15 @@ int main (int argc, char *argv [])
       line++;
     }
     fclose(fptr);
+#ifdef RCV_CMD
+    char cmd[STATIC_LEN*2]="";
+    sprintf(cmd,"%s %s",STRINGIFY(RCV_CMD),path); // Run the command with new file as argument
+    system(cmd); // Allow to run a supplied user command on receive
+#endif
   }
 
   zmq_close (subscriber);
   zmq_ctx_destroy (context);
 
   return 0;
-}
\ No newline at end of file
+}