things-to-fix-or-add-in-the-s3it-docs.md

-A list of outdated/incorrect items and things that should be added.
\ No newline at end of file
+A list of outdated/incorrect items and things that should be added.
+---
+
+On the singular page
+https://www.zi.uzh.ch/en/teaching-and-research/science-it/infrastructure/cluster/cluster-usage/containers.html
+
+If you want to be sure to get all of the filesystems mounted, you could use a very short script to invoke singularity, which you can edit for your own needs.
+
+Something like this, for example:  
+    ./singularityexec.sh ./tf-py3.simg python test.py  
+where the bash script is:  
+    cat ./singularityexec.sh  
+
+    #!/bin/bash  
+    singularity exec -H /net/cephfs/home/$USER -B /scratch:/scratch -B /data:/data $1 $2 $3   
+
+
+If it is a docker container image, then the "-u" option needs to be present, so the command would look like (including mounting of home, data and scrat6ch):  
+   singularity exec -u /net/cephfs/home/$USER -B /scratch:/scratch -B /data:/data image_file_name COMMAND   
+
+
+