minishell

This project is about creating a simple shell.

Table of Contents

• Mandatory
• Bonus
• Download
• License

Mandatory part

We need to implement a bash that handle simple commands like

1. redirections
   • output (ls > file)
   • append (echo Hail >> file)
   • input (< Makefile cat)
   • heredoc (cat << delimiter_to_stop)
2. pipes
   • cat Makefile | grep CFLAGS | tr ' ' '#' | wc
3. command history
4. environment variables
5. signals
   • ctrl-C
   • ctrl-D
   • ctrl-\
6. $? (expand to the exit status of the most recently executed foreground pipeline)
7. builtins
   • echo with option -n
   • cd with only a relative or absolute path
   • pwd with no options
   • export with no options
   • unset with no options
   • env with no options or arguments
   • exit with no options

Bonus part

• Our program has to implement
  • && and || with parenthesis for priorities.
  • Wildcards * should work for the current working directory.

# && and || examples
echo Hello && echo Bye
wrong_command || echo right_command

# Wildcard example
ls *
cat *c

Download

git clone [email protected]:vinicius-f-pereira/minishell.git

Use make or make bonus and follow instructions Here