diff --git a/Git magic.md b/Git magic.md
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--- /dev/null
+++ b/Git magic.md	
@@ -0,0 +1,14 @@
+# Create a submodule from a specific folder
+```
+git clone <your_project> <your_submodule>
+cd <your_submodule>
+git filter-branch --subdirectory-filter 'path/to/your/submodule' --prune-empty -- --all
+```
+
+# Remove a file from history
+
+```
+git filter-branch --force --index-filter \
+'git rm --cached --ignore-unmatch \#web40.tex\#' \
+--prune-empty --tag-name-filter cat -- --all
+```
\ No newline at end of file
diff --git a/gistfile1.sh b/gistfile1.sh
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--- a/gistfile1.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-git clone <your_project> <your_submodule>
-cd <your_submodule>
-git filter-branch --subdirectory-filter 'path/to/your/submodule' --prune-empty -- --all
\ No newline at end of file