Shit Shell (SHSH)

Features:

Set 1:

• Internal shell command "exit" which terminates the shell
• A command with no arguments
• A command with arguments
• A command, with or without arguments, executed in the background using &

Set 2:

• A command, with or without arguments, whose output is redirected to a file
• A command, with or without arguments, whose input is redirected from a file
• A command, with or without arguments whose output is piped to the input of another command

Set 3:

• Limited shell environment variables
• Reading in the profile file on initialization of the shell and executing any commands inside
  • $PATH
  • $HISTFILE
  • $HOME
• Implementing the buiiltin functions:
  • export
  • history
  • cd

Limitations

Redirecting

• Cannot be done with custom commands

Background Processes

• Cannot be done with custom commands

Piping

• Non-existent