--> Built-in Commands (Custom Implemented) cd
– Change directory history – Show command history clear – Clears the terminal screen mkdir – Creates a new directory rmdir – Removes an empty directory--> System Commands (Handled by execvp) Any command available in Linux, like: ls, pwd, echo, ps, grep, find, cat, etc.
--> Special Features Piping (|) → Example: ls -l | grep cpp Output Redirection (>) → Example: ls -l > output.txt Runs any external command like /bin/date, /bin/uname, etc.