Congratulations! You learned how to use the command line to view and manipulate the filesystem. What can we generalize so far?

• Options modify the behavior of commands:
  • ls -a lists all contents of a directory, including hidden files and directories
  • ls -l lists all contents in long format
  • ls -t orders files and directories by the time they were last modified
  • Multiple options can be used together, like ls -alt
• From the command line, you can also copy, move, and remove files and directories:
  • cp copies files
  • mv moves and renames files
  • rm removes files
  • rm -r removes directories
• Wildcards are useful for selecting groups of files and directories