HUELLE

A simple unix shell implementing some posix features.

Uses a re-entrant bison generated parser and flex generated lexer.

Compile

Requires readline, bison (reasonably new) and flex (reasonable new).

To do a regular build just call

make all

for a debug build do

make all DEBUG=y

but you will need asan support in your compiler.

Usage

./huelle -?
Usage: huelle [OPTION...]
huelle -- a small shell

  -d, --debug                Show debug information
  -v, --verbose              Produce verbose output
  -?, --help                 Give this help list
      --usage                Give a short usage message

Examples

Redirect ls output into out file:

$ 1>out ls
$ cat out

Filter ls output with grep:

$ ls | grep y
example.y
huelle.y

Change directory (builtin):

$ cd ..
$ pwd