diff --git a/.ssh/config b/.ssh/config
old mode 100755
new mode 100644
diff --git a/note/git_purge_file.txt b/note/git_purge_file.txt
new file mode 100644
index 0000000..e2a9882
--- /dev/null
+++ b/note/git_purge_file.txt
@@ -0,0 +1,5 @@
+sometimes you need to get rid of a file from all past commits in git. to do that do the following:
+git filter-branch -f --index-filter 'git rm --cached --ignore-unmatch *.PATTERN'
+
+then force an update to the remote by 
+git push --force -u origin master
diff --git a/notes b/note/notes
similarity index 100%
rename from notes
rename to note/notes