minishell

minishell da vitoria

• Display a prompt when waiting for a new command.
• Have a working history.
• Search and launch the right executable (based on the PATH variable or using a relative or an absolute path).
• Handle ’ (single quote) which should prevent the shell from interpreting the meta-characters in the quoted sequence.
• Handle " (double quote) which should prevent the shell from interpreting the meta-characters in the quoted sequence except for $ (dollar sign).
• TODO: parsear stringone

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 executed 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.

Your shell must 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

• memory leaks.

• memory leaks readline. ATTENTION DELETE THE .SUPP FILE BEFORE FINAL SUBMISSION