Language keywords:
- alias (#define)
- break
- colon (;)
- continue
- false
- readonly (const)
- return
- true
- unalias (#undef)
Shell hacking:
- eval
- getopts (boost::program_options)
- set
- shift (++iter)
- read (scanf)
- unset
Built-in commands:
- bg
- cd
- command (shell)
- dot (source)
- exec (open, close, exec*)
- export (dollar)
- exit
- fc
- fg
- kill
- jobs
- newgrp
- pwd
- umask
- times
- trap (atexit)
- wait (waitpid)