Simple Shell

A Unix shell built in C.

Commands

cd - change working directory
ls - contents of current directory
getpath - print system path
setpath - set system path
history - print history contents
!! - invoke the last command from history
!<no> - invoke command with number from history
!-<no> - invoke the command with the number of the current command minus <no>
alias - print all set aliases (alias plus aliased command)
alias <name> <command> - alias name to be the command
unalias <command> - remove any associated alias