[laumars]

Agreed. I had the same thing writing the parser for my $SHELL. The output was never going to be machine code since the bulk of the code would consist of pipelining external processes and spawning subshells. So the output of "compiler" is an AST-like memory structure with an order of process and tokens for parameters. However I still found following tutorials about compiler design immensely helpful since the problems I faced were largely the same even though the output generated was vastly different.