Creating own lovely bash ❤

Main overview

Implement redirections:

• < should redirect input.
• > should redirect output.
• << should be given a delimiter, then read the input until a line containing the delimiter is seen. However, it doesn’t have to update the history!
• >> should redirect output in append mode.

Implement pipes (| character).

The output of each command in the pipeline is connected to the input of the next command via a pipe.

Handle environment variables

($ followed by a sequence of characters) which should expand to their values.

Handle $? which should expand to the exit status of the most recently execute foreground pipeline.

Handle ctrl-C, ctrl-D and ctrl-\ which should behave like in bash.

In interactive mode:

• ctrl-C displays a new prompt on a new line.
• ctrl-D exits the shell.
• ctrl-\ does nothing.

Implement the following 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

Minishe Program Usage

1. Clone repository
2. Move to directory

cd minishell

3.Run make file

make

4. Run th program : example

./minishell

5. Testing the program

Builting env:

env

Builtin echo:

echo "hello world"

Redirections, pipes, commands:

< Makefile cat | ls | cat > test.txt

Heredoc

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