Cluster/Computing-clusters.md

@@ -85,7 +85,14 @@ In addition to CPU quota, we have limited disc space. Also the number of files i
      csc-workspaces
 ```
 
-Use the following command to count files in the current directory:
+Use Lua to see information about the amount of files and the consumed disc space:
+```bash
+module load lue 
+lue ./directory
+lue -c ./directory # count number of files
+```
+
+This is better than the command below that causes a lot of I/O traffic and may result in CSC admins complaining to you:
 
 ```bash
      find . -maxdepth 1 -type d -print0 | xargs -0 -I {} sh -c 'echo -e $(find {} | wc -l) {}' | sort -n