Terminal know-how.

Know the basics of manipulating your shell.

• $PATH outputs the paths of all programs that can be executed directly by the name of the program. That is, it’s not needed to type the fully path of the program every time.
• which lets you know which path is in use.
• Shift, rename, copy, and delete files with mv, cp, rv, and rm.
• Stuck? Run man with the program name.
• Pass data between files and programs with > and <.
• Pass data between programs with |.
• Remember cd - and cd ~.
• Use chmod to change file permissions.
• Use touch to create files, and change certain file metadata.
• Use cat to view file contents, and concatenate files.
• !# (shebang) calls for bash scripts to be interpreted.