diff --git a/articles/vi.md b/articles/vi.md
index eb16976..c482df9 100644
--- a/articles/vi.md
+++ b/articles/vi.md
@@ -126,6 +126,9 @@ It has to be noted that `Home`, `End`, `PageUp/Down` and cursor keys also work.
 - (n) `K`: look for the identifier under the cursor in the man pages, really useful when you're doing C programming.
 - (n) `.`: repeat last action
 - `:help`, `:h`: Vim help pages
+- `:!`: execute shell command (in the shell specified by the `shell` varible)
+- `:r!`: execute shell command and paste the stdout of that command in the current buffer at where the cursor is
+- `:w !`: (not `:w!`) send buffer or current range to the specified shell command
 
 ### Macros
 - (n) `q`: start recording macro to register
@@ -166,6 +169,8 @@ It has to be noted that `Home`, `End`, `PageUp/Down` and cursor keys also work.
     - `30gg`: go to line 30
 - `G`: go to bottom of file
     - `30G`: same as `30gg`
+- `|`: go to column of the current line
+    - `20|`: move to column 20
 - `gT`: move to previous tab
 - `gt`: move to next tab
 - `gf`: open the file path under the cursor in a new buffer