diff --git a/semester4/dmdb/data-modelling-databases-summary.pdf b/semester4/dmdb/data-modelling-databases-summary.pdf
index cefbcbe..9d84d46 100644
Binary files a/semester4/dmdb/data-modelling-databases-summary.pdf and b/semester4/dmdb/data-modelling-databases-summary.pdf differ
diff --git a/semester4/dmdb/parts/03_systems/01_database-engines/00_memory/04_row-vs-column-store.tex b/semester4/dmdb/parts/03_systems/01_database-engines/00_memory/04_row-vs-column-store.tex
index d06c79f..35e61f9 100644
--- a/semester4/dmdb/parts/03_systems/01_database-engines/00_memory/04_row-vs-column-store.tex
+++ b/semester4/dmdb/parts/03_systems/01_database-engines/00_memory/04_row-vs-column-store.tex
@@ -8,7 +8,7 @@ This scheme is used by actual systems, but they also have many additional detail
 A typical ideal application for a row store is Online Transaction Processing (OLTP).
 This is visible for example with banking applications, shopping carts, etc, where the operations mostly are on a single tuple.
 
-However, for xomplex queries, the row store can become cumbersome.
+However, for complex queries, the row store can become cumbersome.
 
 
 \paragraph{Column Store}
diff --git a/setup.sh b/setup.sh
index b4ab7fa..2d01f4c 100755
--- a/setup.sh
+++ b/setup.sh
@@ -37,13 +37,18 @@ if [[ $usesubmodule != 'n' ]]; then
 else
     read -e -p "Where are the helper files located (absolute path to folder only, tab-completion enabled)? " helperpath
 
-    if [[ ${dir:0:1} == '/' ]]; then
+    if [[ ${helperpath:0:1} == '/' ]]; then
+        createFiles $helperpath
+    elif [[ ${helperpath:0:1} == '~' ]]; then
+        helperpath=$(readlink -f $helperpath)
         createFiles $helperpath
     else
         echo "Note: You did not enter an absolute path, it was expanded automatically"
-        createFiles $(readlink -f $(pwd)/$helperpath)
+        helperpath=$(readlink -f $(pwd)/$helperpath)
+        createFiles $helperpath
     fi
     echo "
+    => Path was set to $helperpath
     => If you entered also the file name, rerun this script, the compile will fail in that case.
     "
 fi