moharamfatema / shell-c-linux

**A shell on linux that supports the following: **

1. The internal shell command "exit" which terminates the shell Concepts: shell commands, exiting the shell. System calls: exit()

2. A command with no arguments Example: ls …etc Details: The shell is blocked until the command completes and, if the return code is abnormal, a message to that effect is printed. Concepts: Forking a child process, waiting for it to complete and synchronous execution. System calls: fork() , execvp() , exit() , wait()

3. A command with arguments Example: ls –l, cp source destination, rm filename. Details: Argument 0 is the name of the command. Concepts: Command-line parameters

4. A command, with or without arguments, executed in the background using &. Example: firefox & Details: In this case, the shell executes the command and returns immediately, not blocking until the command finishes. Concepts: Background execution, signals, signal handlers, processes and asynchronous execution.