Added bullet for alias. Fixes #119

README.md

@@ -51,6 +51,8 @@ Notes:
 
 - Learn about file glob expansion with `*` (and perhaps `?` and `{`...`}`) and quoting and the difference between double `"` and single `'` quotes. (See more on variable expansion below.)
 
+- Use `alias` to create shortcuts or synonyms for commonly used commands. For example: `alias ll='ls -latr'` creates a new alias `ll`.
+
 - Be familiar with Bash job management: `&`, **ctrl-z**, **ctrl-c**, `jobs`, `fg`, `bg`, `kill`, etc.
 
 - Know `ssh`, and the basics of passwordless authentication, via `ssh-agent`, `ssh-add`, etc.