diff --git a/.bashrc b/.bashrc
new file mode 100644
index 0000000..b4c4b3f
--- /dev/null
+++ b/.bashrc
@@ -0,0 +1,2 @@
+# to add at the end
+alias tw='function _tw(){ cat $1; cat >> $1; }; _tw'
\ No newline at end of file