myshell

myshell is a basic implementation of a unix shell using the C99 programming language.

Features

• macOS and Linux supported
• Execute external commands (e.g. /usr/bin/cal -y)
• Search path (users do not need to provide full address)
• Execute internal commands: exit, cd, time
• Sequential execution (e.g. ";", "&&", "||")
• Sub-shell execution (e.g. >> (commands) )
• Stdin and stdout file (e.g. command < infile, command > outfile, command >> outfile (appends))
• Pipelines (e.g. command1 | commmand2)
• Shell scripts
• Background execution (e.g. "command1 & command2")

How to run

To build run the Makefile file in the terminal:

\>> make

To run the program:

\>> ./myshell

CITS2002 System Programming

myShell is a student project from the University of Western Australia course CITS2002 System Programming. Skeleton C99 source code files were provided by the University as assistance to develop this program.

Preparation and Labs

Preparation work from C99 techniques labs have also been included.