#!/usr/local/bin/bash 
#
# translates a couple of dos comands to unix (ls and cls)
# An example of using the read command to provide
# an interactive program.
#

# define the prompt
prompt="dos-weenie> ";

# print the prompt with no newline (echo -n mean no newline)
echo -n $prompt

# now read from stdin and put in the variable cmd
# keep doing this until we get no cmd (^D from the user)
while read cmd
  do
    # if the command is dir, do an ls
    if [ $cmd = "dir" ]
       then
          ls
       else
          # if the command is cls, do a clear
          if [ "$cmd" = "cls" ]
             then
               clear
             else
               # we don't support the command
               echo Unrecognized command
          fi
    fi
    # done with the command, prompt for the next one
    echo -n $prompt
done
# force a newline
echo