Shell

A shell interpreter project like csh, sh, bash , etc.

How-To

Build the shell program by typing : "make"

To run it type: "shell"

Then type commands like "ls aaaa | grep cccc | grep jjjj ssss dfdffdf >>& out < in"

Features:

• Process Creation
• Command Execution
• File Redirection
• Pipes
• Background
• Ignore Ctrl-C
• Wild Card Expansion
• Elimination of Zombie Processes
• Allow quotes and escape characters
• Enviroment variable expansion
• Tilde expansion
• Line editor
• History
• Subshells
• cd
• setenv
• unsetenv
• printenv
• exit
• clear