diff --git a/bash_tools/clean.sh b/bash_tools/clean.sh
new file mode 100644
index 0000000..4bb9576
--- /dev/null
+++ b/bash_tools/clean.sh
@@ -0,0 +1,10 @@
+read -p "Are you sure? " -n 1 -r
+echo    # (optional) move to a new line
+if [[ ! $REPLY =~ ^[Yy]$ ]]
+then
+    exit 1
+fi
+
+rm -rf Log
+rm -rf Parameters
+rm *.txt
diff --git a/bash_tools/make_new_previous.sh b/bash_tools/make_new_previous.sh
new file mode 100644
index 0000000..b80763d
--- /dev/null
+++ b/bash_tools/make_new_previous.sh
@@ -0,0 +1,5 @@
+MAX_NUMBER=199
+
+MyPATH="Previous++"
+mkdir $MyPATH
+cp Parameters/*_S$MAX_NUMBER.npy $MyPATH