Shell implementation - nicpoyia-shell

This project includes a custom shell implementation from scratch, covering basic bash functionality.

The purpose is to demonstrate how a shell can be natively developed using the C language.

How to build and run

• cd build && make clean && make all
• ./nicpoyia-shell

Natively implemented features:

• Analytic parsing of each input script.
• Many built-in bash commands.
• Foreground / Background process and job handling.
• Serial / Concurrent sequences of commands can be handled (using ; or &).
• File redirection [>, >>, <], also using [0, 1, 2] file descriptor numbers.
• Pipelined sequences of commands implemented using FIFO interconnected processes.
• Limit of the concurrent processes and jobs running (upto 10).
• Signals are properly handled (may be forwarded to a foreground process).
• Full environmental support (environmental variables handled properly).