- Navigating the directory tree:
- ls
- pwd
- cd
- . and ..
- command line arguments
- Creating, moving and deleting files and folders:
- rm
- rmdir
- mkdir
- cp
- mv
- Basic regular expressions
- Pipes and filters
- Pipe commands together
- I/O redirection
- Working with variables:
- define local and environment variables
- modify variables using pattern syntaxes
- integer variables and basic maths
- Loops
- Conditionals
- Scripting