vilyanare / simple_shell Goto Github PK

Struct and function pointers plus search function for builtins

Valgrind often

Exit command
Exit arguments
exit(int)
get rid of ctrl c (man signal)

Yeah

Handle arguments to commands

when you type a non-existent command with arguments, it should only print the command in the error (and not all of the arguments!)
The user types in:
hello 5 forty

The behavior we want:
sh: 1: hello: not found
The behavior we get:
./shell: 1: hello 5 forty: not found

DUMONT:
Simple shell
Non-interactive mode
Handle errors.

HARTMAN:
Write a UNIX command line interpreter.
Usage: simple_shell

Your Shell should:

• - Display a prompt and wait for the user to type a command. A command line always ends with a new line.
• - The prompt is displayed again each time a command has been executed.
• - The command lines are simple, no semi-columns, no pipes, no redirections or any other advanced features.
• - The command lines are made only of one word. No arguments will be passed to programs.
• - If an executable cannot be found, print an error message and display the prompt again.
• - Handle errors.
• - You have to handle the “end of file” condition (Ctrl+D)

You don’t have to:

• use the PATH
• implement built-ins
• handle special characters : ", ', `, , *, &, #
• be able to move the cursor
• handle commands with arguments

implement own getline function

Update all documentation regularly

Check the PATH for commands

Print environment

We fixed the initial leak and can now move on!

String concatenate to take in multiple strings and concat them all.

Write a blog a bout what happens when you type "ls -l" into the command line and hit enter.

Reference article

@Vilyanare

void _error(int error)

do something based on error number
exit child

Strings decimal
_fprintf for stderr
_printf(int, char *s, ...) for stdout
_printf(1, "hello")
_printf(2, "error")

See README

Make everything betty compliant

FIX THIS

• -_puts
• -_strlen
• -_strtok